[FINAL UPDATE] Damned thing did it again... [Forums - C4 Technical]

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bogus	[FINAL UPDATE] Damned thing did it again...	#1
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	Yup... the POS died on my way back to work from lunch. I had to have it towed home. It looks like another fuel pump. After priming, it was down to about 30lbs... which tells me fuel pump. I am going to order one right now... if nothing else, I get a better fuel pump.
	Posted on: 2009/1/8 3:38
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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bogus	Re: Damned thing did it again...	#2
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	Does Holley still make a fuel pump for the Vette? I see one listed for the Camaro/Firebird/Grand National, but I don't know if it interchanges...
	Posted on: 2009/1/8 3:50
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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BrianCunningham	Re: Damned thing did it again...	#3
Senior Guru Boston, MA for the most part :) 7763 Posts Member since: 2007/12/30 0:00	Check the tank, see if there's something in there messing it up. You've got a locking gas cap on it right?
	Posted on: 2009/1/8 3:59
	_________________ Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com
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Notorious	Re: Damned thing did it again...	#4
Elite Guru Downbound train, NC 2184 Posts Member since: 2005/9/17 0:00	I thought for sure you were going to say your alternator conked out again. So you've had previous fuel pump trouble too?
	Posted on: 2009/1/8 5:34

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cuisinartvette	Re: Damned thing did it again...	#5
Elite Guru 1782 Posts Member since: 2005/9/16 0:00	You put one on there last year didnt you? Autozone sells Airtex never had an issue with them.
	Posted on: 2009/1/8 5:38

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Calm	Re: Damned thing did it again...	#6
Senior Guru Vancouver, Canada 608 Posts Member since: 2007/12/27 0:00	When mine goes I'm gunna try to get an AC Delco (or whatever the factory installed manufacturer is) because they seem to last the longest? My '95 has 85k and still going strong. (Course, it could have been changed before 58k when I got the car.)
	Posted on: 2009/1/8 6:13

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bogus	Re: Damned thing did it again...	#7
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	I did an autozone pump (airtex) back in July... it acted just like a lack of fuel. I will analyze over the weekend... but I am going to order something tomorrow.
	Posted on: 2009/1/8 6:43
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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Calm	Re: Damned thing did it again...	#8
Senior Guru Vancouver, Canada 608 Posts Member since: 2007/12/27 0:00	Best of luck Bogus.
	Posted on: 2009/1/8 6:53

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crash	Re: Damned thing did it again...	#9
Guru WRIGHT CITY MO 63390 977 Posts Member since: 2007/12/15 0:00	stick with ac delco.at the shop we tried napa-carquest-airtex and other brands overtheyears. they would last anywhere from 6 mosto 2 yrs. we started using oem in everything and they seem to go on forever. also change the fuel filter when installing a fuel pump
	Posted on: 2009/1/8 12:37
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dan0617	Re: Damned thing did it again...	#10
Senior Guru Tyrone, PA 1260 Posts Member since: 2007/12/30 0:00	The holley and edelbrock pumps are made by Walbro. I had a walbro 255 die on me, but it was due to excessively hot fuel. My fuel lines were running up past my header, then back across the intake, then through the fuel rails. You can see some of it in my avatar. I pulled the return line off, held my thumb over it, and had my wife cycle the key. Got no fuel and knew it had to be the pump or the relay. Bypassed the relay and still had no fuel. Fuel in the line at the top of the tank when I first pulled the line off nearly scalded me it was so hot right after the car died. I since rerouted my fuel lines, installed a new Walbro 255 hp, and problems went away.
	Posted on: 2009/1/8 13:06
	_________________ ´89 Vert, 383, 230/236 cam, AFR 195's, LT Headers, HSR intake, 2800 stall, Zex 200 shot, ET Street Radials, tune by me. Runs were with D36 3.07's. On spray, 10.55 @ 132.78, 1.55 60 ft. On motor, 12.08 @ 113.15, 1.66 60 ft.
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Lichen	Re: Damned thing did it again...	#11
Guru Scottsdale, Arizona 166 Posts Member since: 2007/11/28 0:00	Airtex here. No problems in 3 years.
	Posted on: 2009/1/8 15:19

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joeld	Re: Damned thing did it again...	#12
Guru Lawrenceville Ga 718 Posts Member since: 2007/12/30 0:00	I guess the only bright spot of this is that at least the car is NOT a Camaro/Firebird. Replacing a pump in those will ruin the day. Good luck Joel
	Posted on: 2009/1/8 15:22
	_________________ 1989 Coupe,L98 automatic
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bogus	Re: Damned thing did it again...	#13
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	I don't get it... It sounds like the pump is priming, but with only 30lbs on the gauge, that sounds like the line is blocked or the pump is crap. I am gonna blow out the lines, too...
	Posted on: 2009/1/8 15:43
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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red_johnny	Re: Damned thing did it again...	#14
On Sabbatical Augusta, GA (85 383 stroker) 3213 Posts Member since: 2006/7/6 0:00	Did you replace the sock when you did the pump? Could be something clogging up at the input side reducing the pressure.
	Posted on: 2009/1/8 15:58

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CentralCoaster	Re: Damned thing did it again...	#15
Senior Guru San Diego, CA 9454 Posts Member since: 2007/10/28 0:00	Quote: cuisinartvette wrote: You put one on there last year didnt you? Autozone sells Airtex never had an issue with them. Airtex is an OEM supplier, right?
	Posted on: 2009/1/8 16:04
	_________________ 1985 Z51, ZF6
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CentralCoaster	Re: Damned thing did it again...	#16
Senior Guru San Diego, CA 9454 Posts Member since: 2007/10/28 0:00	Andy, the pump can't pressurize the system any higher than the regulator will let it. If priming it several times doesn't get it over 30, I doubt its the pump. I would look elsewhere.
	Posted on: 2009/1/8 16:06
	_________________ 1985 Z51, ZF6
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Josh	Re: Damned thing did it again...	#17
Guru Raleigh, NC 666 Posts Member since: 2008/1/1 0:00	It sounds like you have a pretty stock car, so you might not want to upgrade to a more powerful pump, but here is a good option if you do. The stock pump from a Toyota Supra turbo is good to about 500 RWHP, is quiet, reliable, and can be had for less than $200. There will be some minor modifications, but nothing you can't handle. Just tossing that out there.
	Posted on: 2009/1/8 17:17
	_________________ "Have ya paid your dues, Jack?" "Yessir, the check is in the mail." - Jack Burton
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mseven	Re: Damned thing did it again...	#18
Senior Guru Motor City Madhouse 247 Posts Member since: 2005/9/17 0:00	I have an almost new delco here w/sock and strainer you can have (pay postage), provided you can use it on your year.
	Posted on: 2009/1/9 2:08

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cuisinartvette	Re: Damned thing did it again...	#19
Elite Guru 1782 Posts Member since: 2005/9/16 0:00	Yup. [QUOTE]Airtex is an OEM supplier, right?[/QUOTE]
	Posted on: 2009/1/9 2:29

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BrianCunningham	Re: Damned thing did it again...	#20
Senior Guru Boston, MA for the most part :) 7763 Posts Member since: 2007/12/30 0:00	Quote: CentralCoaster wrote: Andy, the pump can't pressurize the system any higher than the regulator will let it. If priming it several times doesn't get it over 30, I doubt its the pump. I would look elsewhere. I concur You had an injector hang open a while back Perhaps there's a restriction in the system and the pump's burning out trying to fight it. When's the last time you changed the filter? What's the bottom of the tank look like?
	Posted on: 2009/1/9 2:32
	_________________ Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com
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bogus	Re: Damned thing did it again...	#21
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	Second thoughts and other random occurrances: It wasn't an injector that hung open 3+ years ago. It was a bunged up Accel AFPR. It filled two cylinders and the crankcase with fuel. It has rather new FMS Blue Tops. I have replaced the Accel POS with a stock one and then upgraded to a TPiS unit. The last time I looked (July) the tank looked clear. I would expect that if there was an obstruction, the pressure would be low all the time, regardless of pump age. I do plan on blowing out the lines. Yes, I replaced the sock. Always do. I am more than likely going to replace the short bit of rubber hose at the tank. I am concerned about is the pigtail to the pump. There has been a lot of talk about them failing; to such a point that many pumps come with a new one. I have inspected mine several times and it looks fine, but is it? Could he pulsator cause this? Could it block the fuel flow? The last fuel filter (last spring) was a cheap-shit one from AutoZone. I am going to go to a Chevy dealer and get a new Delco. I am afraid that the cheap-shit one might have collapsed, internally. I am also going to check for spark, just to be sure. For those curious: The fuel pump circuit is rather clever. A relay is fired and then runs for 2 seconds to prime the system. If it isn't working, the pump does not prime. There is a parallel switch based on oil pressure (on the same stand-off as the oil pressure sender). This will fire the pump with 4 PSI. It will also keep the engine running if the relay fails. This will NOT protect the engine from oil pressure loss. The entire concept of a return system is that the fuel goes to the rail, pressurizes same and then returns the tank. The result? Cooler fuel rails and a near zero chance of vapour lock.
	Posted on: 2009/1/9 3:59
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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bogus	Re: Damned thing did it again...	#22
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	The plot thickens. I just came in from working on the car... and here is the score. IT RUNS. Figure that one out. I am now beginning to wonder if the brain on the LTCC isn't the cause. An email I sent to Bob, the guy who created the LTCC: Quote: Bob, Long time no speak! How have you been? I have a question regarding the LTCC module. If it is deciding to fail, does it start tripping DST 42s? Could a failing coil cause this? It's just that the Helm FSM has all sorts of tests to perform and I can't do them... Reference: 1992 Corvette I was driving back to work from lunch on Wednesday and it died and wouldn't restart. I had to have it towed home. I finally got out there this morning and checked the usual suspects: Fuses - all ok Fuel Pressure - 45 PSI and holding nicely (holding 45 PSI from Wednesday, for that matter). Wiring to LTCC - all soldered and heat shrinked with glue, to keep moisture out (hell, I am in CA now, what moisture?) Removed cover to LTCC, dry inside, no sign of burned board or components. Nothing funny smelling. The car just died and would not restart. Now, it has sat for a couple of days and well... after the various checks, it fires right up. I am going to replace the plugs, they are NGK Iridiums and they look a little worn out. Any ideas? I recend my hatred for the fuel pump. An additional thought: ** Could corrosion build up on the contacts of the fuse panel to such a point that the car won't start? When I went to look at this car way back in 2000, I was going through the test processes for all the accessories. I get to the wipers and nothing. The then owner checks the fuse and it was fine. Put it back in, wipers work. So... Maybe my question isn't that moot.
	Posted on: 2009/1/10 20:26
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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pianoguy	Re: Damned thing did it again...	#23
Guru Emeritus Apple Valley, MN 14762 Posts Member since: 2007/12/29 0:00	Poltergeists? Sounds like a tricky problem, indeed.
	Posted on: 2009/1/10 20:43
	_________________ 1996 LT4 �Before you criticize someone, you should walk a mile in their shoes. That way when you criticize them, you are a mile away from them and you have their shoes.�- Jack Handey
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happydad	Re: Damned thing did it again...	#24
Senior Guru northern Ill 151 Posts Member since: 2006/10/22 0:00	how the heck could corrosion happen on fuel lines.JOHO
	Posted on: 2009/1/10 20:51
	_________________ 86 Coupe,350 bored .040 over,Eagle Internals,Scorp RR.Crane Cam,Hedman Hedders,Holley Mani,TCI Trans,3:73 Rear, Demon Carb ,Hole in the hood Scooped and Lots of leaks(Horsepower) I forget :thumbleft:
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bogus	Re: Damned thing did it again...	#25
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	the fuel lines are corroding, it's the fuse panel.
	Posted on: 2009/1/10 21:10
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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BrianCunningham	Re: Damned thing did it again...	#26
Senior Guru Boston, MA for the most part :) 7763 Posts Member since: 2007/12/30 0:00	What's the fuel line have to do with the fuse panel??????
	Posted on: 2009/1/10 21:25
	_________________ Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com
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bogus	Re: Damned thing did it again...	#27
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	nothing, that was my point. The code 42 was more than likely set when the engine quit in the first place. I have been emailing Bob about this... It may still be the brain, but time will tell for sure. I want to try to start it, have it fail and see if the LTCC error codes help any.
	Posted on: 2009/1/10 21:27
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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bogus	Re: Damned thing did it again...	#28
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	I am thinking I have some worn out connections. That is what is leading to my problems. I am going to get some wiring/connectors/pigtails and resolve this once and for all.
	Posted on: 2009/1/10 23:26
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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Schrade	Re: Damned thing did it again...	#29
Elite Guru eastern NC / e-i-e-i-o 1909 Posts Member since: 2008/8/15 2:01	Quote: bogus wrote: ** For those curious: The fuel pump circuit is rather clever. A relay is fired and then runs for 2 seconds to prime the system. If it isn't working, the pump does not prime. There is a parallel switch based on oil pressure (on the same stand-off as the oil pressure sender). This will fire the pump with 4 PSI. It will also keep the engine running if the relay fails. This will NOT protect the engine from oil pressure loss. I used to be curious yup, but now that I see it in print, I got reference: (2nd column, 1st full paragraph) Ol' Joe (anesth) was gonna' set the author straight, but I don't know what happened on that. So I gotta' stick with what's on paper, till I see somthin' different in writin'... Bohacz makes more money gettin' a wrench-on than I do uh huh! Get LIFE on paper. Words go away when the sound stops!
	Posted on: 2009/1/11 1:42
	_________________ LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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bogus	Re: Damned thing did it again...	#30
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	whomever wrote that article did no research at all.
	Posted on: 2009/1/11 1:48
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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BillH	Re: Damned thing did it again...	#31
The Stig Moderator Reno 22702 Posts Member since: 2007/12/25 0:00	Quote: bogus wrote: The plot thickens. ** Could corrosion build up on the contacts of the fuse panel to such a point that the car won't start? When I went to look at this car way back in 2000, I was going through the test processes for all the accessories. I get to the wipers and nothing. The then owner checks the fuse and it was fine. Put it back in, wipers work. So... Maybe my question isn't that moot. I the connector industry, as a general rule, one amp in a circuit will blow thru galvanic corrosion. That makes the wiper thing interesting. I wonder if the PO had these problems before you bought the car. Seems to me that corrosion in the fuseblock would have to be massive and visible to cause this type of problems.
	Posted on: 2009/1/11 13:59
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bogus	Re: Damned thing did it again...	#32
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	That's my thinking... but the wiper thing is very interesting. I haven't had this problem as a regular occurance... it's just now the car has gremlins (the ghosts of AMC's past?) and I am having a tough time finding them. As an aside, I replaced a wire from the LTCC to the car's harness. This feeds the EST circuit. I, for some reason, don't think it's the cause, but it might be a condition. I need to check the pink wires to the coil. I am wondering if under acceloration that the wires are binding up during engine windup... causing them to pull and or stretch and or disconnect. So I am going to fix that later today. It makes sense... the only place to put the LTCC on a C4 is in the left headlight bucket. It gets in the way in too many other places, the harness isn't long enough to reach better places, and the unit does not like heat. So it has to be in front of the radiator.
	Posted on: 2009/1/11 15:04
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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bogus	Re: Damned thing did it again...	#33
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	I will post pictures later... but the serp belt exploded and took the LTCC harness with it. Totally bunged it up. I have a rats nest there now... I am looking into the various parts to fix it.
	Posted on: 2009/1/11 20:54
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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BrianCunningham	Re: Damned thing did it again...	#34
Senior Guru Boston, MA for the most part :) 7763 Posts Member since: 2007/12/30 0:00	Ouch! Lost one of those out on track when my pulley bearing seized, as least it wasn't running the WP, but the steering got real stiff and all the dash light came on. Hopefully something else didn't seize up on you causing the belt to shred. Where did you mount the LTCC?
	Posted on: 2009/1/11 21:17
	_________________ Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com
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bogus	Re: Damned thing did it again...	#35
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	the only place to mount it is in the left headlight bucket. See post #32.
	Posted on: 2009/1/11 21:25
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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anesthes	Re: Damned thing did it again...	#36
Master Guru Boston, MA 646 Posts Member since: 2008/6/18 18:02	Quote: Blade_1 wrote: Ol' Joe (anesth) was gonna' set the author straight, but I don't know what happened on that. So I gotta' stick with what's on paper, till I see somthin' different in writin'... Bohacz makes more money gettin' a wrench-on than I do uh huh! I emailed them but they never replied. -- Joe
	Posted on: 2009/1/11 22:19

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bogus	Re: Damned thing did it again...	#37
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	shocking.
	Posted on: 2009/1/11 23:00
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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bogus	Re: Damned thing did it again...	#38
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	The Post Mortium. The harness is junk. The first pic is one of the three coil connectors that got trashed. The second pic is of the harness itself. Nice rats nest, eh? The last pic is what is left of the belt. I am beginning to suspect the AC compressor as the source of this problem. It's the original, and to be honest, it has lived a lot longer than they normally do. It has the same 169k miles as does most of the rest of the car. Attach file: DSC_0139.jpg (175.91 KB) DSC_0142.jpg (141.93 KB) DSC_0145.jpg (80.51 KB)
	Posted on: 2009/1/12 0:54
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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BrianCunningham	Re: Damned thing did it again...	#39
Senior Guru Boston, MA for the most part :) 7763 Posts Member since: 2007/12/30 0:00	Is the clutch seized? or the compressor itself? Can you order a new harness, or is this DIY?
	Posted on: 2009/1/12 1:01
	_________________ Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com
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bogus	Re: Damned thing did it again...	#40
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	I think it's the compressor. The clutch still moves freely. Same with the idler/tensioner and the PS pump. The AC has been really dragging the motor down for a while now... so I think it's finally given up. According to Bob, the harness type you see in the pictures is unavailable. He has a new harness that connects to an OEM coil sub-harness. I am waiting to hear back from him.
	Posted on: 2009/1/12 1:09
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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bogus	Re: Damned thing did it again...	#41
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	I have ordered new harnesses from both Bailey Engineering and OEM harnesses from Superior Chevy. They won't be to me until next week.
	Posted on: 2009/1/14 2:49
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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bogus	Re: Damned thing did it again...	#42
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	I have all the harnesses needed. The last two arrived today. I will update with the various part numbers for those interested.
	Posted on: 2009/1/24 2:20
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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bogus	Re: [UPDATE] Damned thing did it again...	#43
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	Much of the complexity of this repair are the changes that occured to the Opti harness over the years. 1. The Opti harness to Engine harness has a 3x2 plug. The earlier connector included some kind of grounding shield that was not used in later years - well, after 1992 that is. This connector is a bastard child... it was never used again by any other LT1 car. To convert to the new harness, I needed to change over to the new style oval 4 pin connector. When I took it apart, the old connector literally disentagrated in my hands. 2. The later style opti has a deeper socket on it, this means that the new style harness has a longer connector! I had to swap from the new back to the old so it would interface with my old style Opti. The pins are double retained. They actually put the pins on the wire, then feed them in from the end versus from the backside. I had to remove those pins and remove a couple of tangs so as to put them back in. The rubber gasket seems more than strong enough to retain the pins. 3. The new LTCC harness is great. It uses OEM coil harness and it is much longer. I can now install the LTCC module in the right headlight bucket, which will keep the new harness well clear of the serp belt. All of this should be assembled and the car running tomorrow. I have a set of aluminum coil brackets on order. As soon as they arrive, I will post pics.
	Posted on: 2009/2/1 4:16
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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bogus	Re: [UPDATE] Damned thing did it again...	#44
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	This seems to be a well read thread... so one more post... IT'S ALIVE!!!!!!!!!!! I have a miss... one plug wire is bad, but the worst of it is back together!!!
	Posted on: 2009/2/5 6:50
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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dan0617	Re: [UPDATE] Damned thing did it again...	#45
Senior Guru Tyrone, PA 1260 Posts Member since: 2007/12/30 0:00	Good to hear it is up and running! Funny how the little things like plugs and fittings and flares and such take the most work and time to get worked out, where as the big projects like replacing an engine block seem easy.
	Posted on: 2009/2/5 12:49
	_________________ ´89 Vert, 383, 230/236 cam, AFR 195's, LT Headers, HSR intake, 2800 stall, Zex 200 shot, ET Street Radials, tune by me. Runs were with D36 3.07's. On spray, 10.55 @ 132.78, 1.55 60 ft. On motor, 12.08 @ 113.15, 1.66 60 ft.
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BillH	Re: [UPDATE] Damned thing did it again...	#46
The Stig Moderator Reno 22702 Posts Member since: 2007/12/25 0:00	Quote: bogus wrote: 2. The later style opti has a deeper socket on it, this means that the new style harness has a longer connector! I had to swap from the new back to the old so it would interface with my old style Opti. The pins are double retained. They actually put the pins on the wire, then feed them in from the end versus from the backside. I had to remove those pins and remove a couple of tangs so as to put them back in. The rubber gasket seems more than strong enough to retain the pins. Pins,sockets and connectors can drive you nuts. We had a couple of thousand part numbers JUST for insertion/extraction tools. And the 3 or 4 place housing can have a key molded in so there could be 10 p/n's for a 4 place housing. Glad it started up. Was it Taylor wire that was bad?
	Posted on: 2009/2/5 13:49
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bogus	Re: [UPDATE] Damned thing did it again...	#47
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	it was a home made taylor wire that was bad. I can't blame them if I can't crimp it tight enough. the downside of this system is that I have to make my own wires...
	Posted on: 2009/2/5 15:28
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bogus	Re: [UPDATE] Damned thing did it again...	#48
Grand Imperial Pooh-Bah San Pedro, CA 20859 Posts Member since: 2005/9/7 0:00	I just got it back to running on 8 cylinders. Amazing difference that makes. The broken #8 wire was not a result of my construction... unless I fractured the outer silicone core... the last 3/4" of the wire had actually broken off!!! Core and all. The plug end was damaged in removal, but that's because I HATE doing #8 plug... my hands are just too damned fat. I also rerouted the LTCC harness and put some split loom on the loose wires - the white ETC wire and the pink coil wires - and then routed them all under the inner fender metal shield and under the overflow tank. Finally, I pickled the LTCC box by beading the lid with silicone sealer and replacing the o-rings for the screws. I also sealed the receptical on the case with silicone, so it couldn't seep in. Last thing I did was some di-electric grease on the connector ends. I still need to secure the LTCC brain box, but right now, the headlights won't touch the wiring and the brain box is now in an even cooler location. I intend on getting some thick rubber grommets to secure it to the inner fender floor.
	Posted on: 2009/2/7 22:10
	_________________ The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me
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red_johnny	Re: [UPDATE] Damned thing did it again...	#49
On Sabbatical Augusta, GA (85 383 stroker) 3213 Posts Member since: 2006/7/6 0:00	I am with ya on the running on a full 8. Had my problems before mostly cause the wire would end up touching the exhaust manifold and melting just enough to arc. Even with routing the wires and tying them down but it is GREAT news to hear this thing is coming together!
	Posted on: 2009/2/7 22:22

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BrianCunningham	Re: [UPDATE] Damned thing did it again...	#50
Senior Guru Boston, MA for the most part :) 7763 Posts Member since: 2007/12/30 0:00	makes me look forward to putting headers and a dry sump on my car. A good writeup with lots of pics should draw a lot of hits to the site!
	Posted on: 2009/2/7 22:29
	_________________ Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com
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