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| CentralCoaster | Re: Post clutch install issue | ||
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Senior Guru
 
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Well if you're waiting on Saturday mail, then Sunday morning makes more sense right?
I'll have a disc and bearing with me either way. Word to the wise though, even the old Luk sets came with Chinese bearings. I read that guys' website, interesting info on the new parts. I didn't know about the difference in pressure plate holding power. Glad I'm using the ZR1 PP. |
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Posted on: 2015/3/6 23:10
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1985 Z51, ZF6 |
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| bogus | Re: Post clutch install issue | ||
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Grand Imperial Pooh-Bah
 
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He has a ton of info.
I am using an older Valeo pp, but it has a junk bearing. I am waiting on a new ZR1 friction disc and bearing. Sunday sounds perfect, actually. We have an evening event on Saturday. What time is good for you? 10? 11? earlier, later? It's you who is coming here... and lunch is on me. a. |
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Posted on: 2015/3/7 1:21
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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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| CentralCoaster | Re: Post clutch install issue | ||
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Senior Guru
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10 is a comfy time, its about 2 hour drive. I should correct myself too, I don't have a black tag bearing.
My math says the zr1 disc and bearing are exactly the same as the others. |
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Posted on: 2015/3/7 3:39
Edited by CentralCoaster on 2015/3/7 4:10:08 Edited by CentralCoaster on 2015/3/7 4:10:51 |
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1985 Z51, ZF6 |
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| istter1 | Re: Post clutch install issue | ||
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Elite Guru
 
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Andy did you get clutch fork. I don't know if the one out of my 87 will fit 4048869 Just sent you pictures on my cell tried two computers not allowed to so send pictures |
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Posted on: 2015/3/8 0:38
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Only I can change my life. No one can do it for me. Carol Burnett |
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| istter1 | Re: Post clutch install issue | ||
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Elite Guru
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I posted the pictures on face book not a problem there
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Posted on: 2015/3/8 0:56
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Only I can change my life. No one can do it for me. Carol Burnett |
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| bogus | Re: Post clutch install issue | ||
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Grand Imperial Pooh-Bah
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Update... the package is in winter storm hell... it left Des Moines, but hasn't popped back up on the USPS radar since it left... it should have been here yesterday. Jim at Power Torque shipped out 4 packages at the same time, and all of them are lost in the system. More than likely, they arrived in Memphis just as the storm arrived. FedEx carries a lot of the USPS Flat Rate Boxes.
Kevin... if you want to come, do so, we can take the sucker apart, I can photograph everything and get the LuK ready for return. And if the parts arrive, we are ready to reinstall. If not... next weekend, I guess. Or one evening after work, if we can get to it before dark. Steve - saw your post and replied! Thanks! But the 87 part is not the same. I am never going to undertake a major repair during dark season... meaning, DST... never get anything done. sigh... |
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Posted on: 2015/3/8 2:01
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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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| bogus | Re: Post clutch install issue | ||
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Grand Imperial Pooh-Bah
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first and foremost, a big THANKS to CC for coming over yesterday and helping with the clutch.
My parts are still in limbo... I need to call the USPS to get a trace on them... not good. Looks like I need a new pivot ball, too... mine has generated a notch... not good. after a lot of measuring, it looks like the junk Chinese pressure plate is .040" closer to the flywheel than the Valeo part. That is epic distance inside these clutches, especially when you realize that a new disc is .330" and a used up disc is .215" - .040" becomes a factor... this extra .040 then pushes the fork back, causing it to be that much outside of its range, and when fully compressed, pushes the fork into the pressure plate. Lovely. I will post pics tonight. that's about it for now. |
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Posted on: 2015/3/9 19:09
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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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| CentralCoaster | Re: Post clutch install issue | ||
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Senior Guru
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Plus Andy's pivot stud is pretty worn down. I hear that happens after 20 years of marriage. That moves the fork further forward.
Gook luck on removing it. I was thinking, if you had a threaded collar, and a longer bolt of the same metric pitch, you could thread the collar onto the 1/4" of broken bolt, thread the longer bolt into the collar, tightening it, basically creating a "jam bolt" as opposed to a jam nut.. then perhaps you can unscrew it and pull the broken end out with it. Then you can try removing the stud with a 1/2" hex drive. Harbor freight has a set with one: http://www.harborfreight.com/9-pc-38- ... hex-socket-set-67884.html That should have been our step 1. |
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Posted on: 2015/3/9 20:19
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1985 Z51, ZF6 |
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| bogus | Re: Post clutch install issue | ||
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Grand Imperial Pooh-Bah
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I talked to Jim at Power Torque... the hex IS 1 1/8th.
He suggest cutting it off with a cut off wheel or sawzall, then putting a socket on it. |
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Posted on: 2015/3/10 2:32
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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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| bogus | Re: Post clutch install issue | ||
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Grand Imperial Pooh-Bah
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I heard about this guy a few years back... now I get to try out his services... http://www.extractit.com/
he has this machine that will remove broken screws and such from anything. I will report what I learn. |
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Posted on: 2015/3/10 6:25
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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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| bogus | Re: Post clutch install issue | ||
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Grand Imperial Pooh-Bah
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Update:
1. Dropped the bell housing off at the excracter guy; should be done today/tomorrow. 2. Missing package with friction disc and bearing are due in today! The box appeared over night. Yay! 3. new hardened pivot ball stud is inbound! I am thinking Saturday for putting it back together! |
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Posted on: 2015/3/11 15:06
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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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| MikeB52 | Re: Post clutch install issue | ||
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Guru
 
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Sorry, just coming into this thread. I know first hand how much of a PITA the clutches are in these. I myself have a 1994 LT1, and I believe blue label ZF6. I was having HUGE clutch chatter and similar issues as you with the losing acceleration in 5th. Long story short, I figured I could do a pressure plate and disk and try to use my OEM dual mass. Turns out previous owner put in a centerforce with the OEM nowhere to be found. I went through McLeod and emptied my bank account and shook my piggy bank while I was at it. I got a sprung hub clutch disk, new flywheel and pressure plate. Once I put it in tho, night and day of difference and extremely smooth as long as I don't lug the car, then I get a slight vibration. But the clutch grabs and does not let go. Just food for thought if all else fails.
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Posted on: 2015/3/11 16:40
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1994 Vette Admiral Blue 6 speed |
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| bogus | Re: Post clutch install issue | ||
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Grand Imperial Pooh-Bah
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The think many forget is that the DMFW is the final balance on these engines. If the new flywheel isn't right, it will vibrate.
UPDATE: The bell housing is done!!! |
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Posted on: 2015/3/11 17:20
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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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| rklessdriver | Re: Post clutch install issue | ||
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Senior Guru
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Quote:
Does he use EDM or a Bridgeport with carbide center drills? We use the latter, but EDM capability would have been sweet with some of the totally screwed stuff I have had to fix over the years..... Will |
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Posted on: 2015/3/11 19:31
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1984 Corvette. 434 SBC with a Powerglide. Best pass - 8.48@160MPH 1.23 60ft on MT 275/60R15 Radials. 1972 Corvette. LS5 454 BBC with M20 4 speed. Best Pass - Doing good to just pass a gas station. |
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| MikeB52 | Re: Post clutch install issue | ||
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Guru
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Quote:
Yeah the McLeod's use a "weight kit" to bolt onto the flywheel which keeps her quiet. If there was enough sticking up, he probably just used an easy out. Unless the bolt was a thru hole, an EDM would probably cuase more harm than good. He probably used some heat, PB Blast and an easy out or reverse fluted drill bit to thread it out. He may also have just drilled it out to the shank size and ran a tap back thru it. Either way, the jobs done and you can get back moving again! |
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Posted on: 2015/3/11 20:14
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| bogus | Re: Post clutch install issue | ||
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Grand Imperial Pooh-Bah
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Quote:
EDM... he has a stash of these machines. In many cases, it would be worth shipping him the smaller parts to do. He charges $65 an hour. I just picked up the bellhousing... it looks GREAT!!!! |
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Posted on: 2015/3/11 20:26
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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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| CentralCoaster | Re: Post clutch install issue | ||
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Senior Guru
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The other option we were going to attempt, if hammering a 1/2" hex driver in there didnt work, was to use a 1-1/8" crows foot and a breaker bar. A short extension may be needed, essentially creating a big ass wrench that offsets through the hole to the back side of the bellhousing.
Cutting it off looks doable assuming a cut off wheel will fit in there without hitting any fins. Andy didn't think using a torch on the magnesium was a wise idea.  And for posterity, we measured my ZR1 pressure plate assembly at .280" thicker than the LT1. |
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Posted on: 2015/3/11 20:34
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1985 Z51, ZF6 |
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| bogus | Re: Post clutch install issue | ||
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Grand Imperial Pooh-Bah
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Which is the approx .25" difference I was alluding too!
We saved time and my money doing it with this guy... 1 hour and he was done. |
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Posted on: 2015/3/11 20:47
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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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Transfer
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| MikeB52 | Re: Post clutch install issue | ||
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Guru
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Quote:
$65 bucks sounds like a cheap way to avoid a headache! Glad to hear you're under way |
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Posted on: 2015/3/12 20:51
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| CentralCoaster | Re: Post clutch install issue | ||
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Senior Guru
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I dunno if I'll have time this weekend but it looks like the hard thinking is done. It depends how much progress I make on my car.
Doing rear lines, rear rotors, bearing, f/r pads and bleed, test pipe, trans fluid, output shaft seal, oil, and diagnosing my intermittent drivers window. Piece of cake. |
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Posted on: 2015/3/13 19:09
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_________________
1985 Z51, ZF6 |
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| bogus | Re: Post clutch install issue | ||
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Grand Imperial Pooh-Bah
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considering that the transmission is all lined up, I might be able to finish myself. We shall see...
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Posted on: 2015/3/13 19:11
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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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