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| tjpreul | New distributor | ||
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Elite Guru
 
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I ordered in a new MSD distributor, as a winter project. The opti is still working, but has me concerned. I don't know if it has been replaced before and it has 134K.
MSD recommends putting in new seals and gaskets on the timing chain cover, when replacing the distributor. If I am going to have the cover off, I might as well replace the timing chain and waterpump drive shaft too. It's adding up, and adding up quick. |
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Posted on: 2009/1/15 17:41
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| Midnight85 | Re: New distributor | ||
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Guru
 
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Hey, as long as you are pulling the front off the engine a new cam would be nice too!
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Posted on: 2009/1/15 17:54
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HORSEPOWER! Some is good, more is better, too much is just right. |
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| BrianCunningham | Re: New distributor | ||
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Senior Guru
 
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Put a new waterpump on too, as they take out the opti when they go. If you're keeping the stock pump, I'd put a drain line on the weep hole.
What year's your car? If it's the later vented one, I'd leave it till it acted up. Not a bad idea on the cam, kinda wishing I did that when I did a cap 7 rotor replacement my opti. |
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Posted on: 2009/1/15 18:13
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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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| tjpreul | Re: New distributor | ||
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Elite Guru
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Its a 92, so it is not vented. It does start fine, but the idle is a little rough. A new cam would be nice, but that will happen when the entire engine is rebuilt.
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Posted on: 2009/1/15 18:52
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| SpectatorRacing | Re: New distributor | ||
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Elite Guru
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If you're going to have the timing cover off, I'd consider changing to the newer '95-96 style optispark. Better driveshaft, it's vented, and you can use normal timing chains as they don't need the splined hole for the opti drive pin.
Take a look at this: |
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Posted on: 2009/1/15 20:10
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aka Scaryfast |
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Vented Optispark Swap.doc| tjpreul | Re: New distributor | ||
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Elite Guru
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The newer style would be good, for the timing chain option. This one will at least be vented.
The plugs and wires were a mess on the car when it was purchased. One was not plugged in all the way to the distributor, so it was arcing. Which corroded the electrode, so I am not too sure on that connection. |
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Posted on: 2009/1/15 21:02
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Vegas wasn't built on winners. '92 auto, MSD, Banski, Taylor wires, SS lines, C5 rims, 3.07 gears, white gauges, seats from a '96. Motor: Forged rotating assy, Probe pistons, CC valvetrain, AFR heads, Procharger P1SC |
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| BillH | Re: New distributor | ||
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The Stig Moderator
 
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You can replace the seals without pulling the timing cover.
I did it that way on my 92. But at 134k a chain isn't a bad idea. You'll need a really robust puller to get the crank flange off. the Kent-Moore tool is the best. And the vibration damper may be rusted to the crank flange. I'd hit it with some PB Blaster (from underneath the car) a couple of days before you plan to start. The damper can be knocked off from underneath the car with a long rod (wood), make sure you have it on the damper right at the crank flange, not on the OD of the damper. The FelPro timing chain gasket set for the 92 is TCS 45953 and has all the seals in it. |
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Posted on: 2009/1/15 23:33
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Every man dies but not every man lives. |
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| BillH | Re: New distributor | ||
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The Stig Moderator
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I need to add on the 92, unless MSD made a change recently, the opti connector will fit a Caprice harness but not the corvette.
This isn't a big deal, just 4 wires to solder and heat shrink. Here's the wire connections: 92 LT1 MSD black/red(stripe) to brown/yellow - low resolution purple/white to brown/orange - hi res yellow to red - 12 volt black/pink to red/green - ground The 5th wire in the LT1 harness is a ground/shielding wire. It's not needed on the MSD Opti. It doesn't connect to anything on the GM Opti either, just wraped around the other 4 wires for shielding. |
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Posted on: 2009/1/15 23:38
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Every man dies but not every man lives. |
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| bogus | Re: New distributor | ||
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Grand Imperial Pooh-Bah
 
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Don't solder anything - I will have the component number so you can order the later flat oval connector from GM.
I will have the number next week. Another thought... Call Chris May at Superior Chevy, 1.800.728.8267, tell him I sent you. Ask him for the optispark connector on the main harness side. This is for a conversion to a later style opti harness. He is sending me just these parts. you can get a cheap pin popper and swap out the ends. Real easy. |
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Posted on: 2009/1/16 6:13
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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: New distributor | ||
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The Stig Moderator
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Quote:
Good to know. I looked for those when I put in my MSD and couldn't find them. |
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Posted on: 2009/1/16 15:24
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Every man dies but not every man lives. |
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| tjpreul | Re: New distributor | ||
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Elite Guru
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I called MSD. They say to hard wire the distributor in. I think I like the connector approach.
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Posted on: 2009/1/16 22:36
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Vegas wasn't built on winners. '92 auto, MSD, Banski, Taylor wires, SS lines, C5 rims, 3.07 gears, white gauges, seats from a '96. Motor: Forged rotating assy, Probe pistons, CC valvetrain, AFR heads, Procharger P1SC |
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| pianoguy | Re: New distributor | ||
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Guru Emeritus
 
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Quote:
I got my damper off using that method, but I've also heard that you can often get it to come free easier by loosening the 3 bolts just a little and running the engine for a bit (after soaking with PB Blaster). Make sure to put some anti-seize on the damper's mating surface before you put it back together. |
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Posted on: 2009/1/17 1:44
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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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| bogus | Re: New distributor | ||
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Grand Imperial Pooh-Bah
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Do NOT try the loosen bolts/run engine trick. That has disaster written all over it.
The loose bolts could shear... I am a huge fan of PB blaster and the 2x4 trick. You can hit the pulley from behind, too. I would, tho, apply some antisieze on the balancer before reinstallation. Also, be sure to clean the face of all rust. |
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Posted on: 2009/1/18 19:04
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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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| tjpreul | Re: New distributor | ||
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Elite Guru
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On the coupler to the waterpump the groove was towards the pump. In the service manual there said the white stripe should be towards the engine. I am guessing the groove is the white stripe. If so it was in backwards.
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Posted on: 2009/1/26 16:25
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Vegas wasn't built on winners. '92 auto, MSD, Banski, Taylor wires, SS lines, C5 rims, 3.07 gears, white gauges, seats from a '96. Motor: Forged rotating assy, Probe pistons, CC valvetrain, AFR heads, Procharger P1SC |
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| tjpreul | Re: New distributor | ||
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Elite Guru
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I finally started it back up, but only for a few seconds to get the antifreeze to cylce a bit. It seemed a lot smoother than before.
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Posted on: 2009/2/4 17:04
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Vegas wasn't built on winners. '92 auto, MSD, Banski, Taylor wires, SS lines, C5 rims, 3.07 gears, white gauges, seats from a '96. Motor: Forged rotating assy, Probe pistons, CC valvetrain, AFR heads, Procharger P1SC |
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