C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Re: ZF pressure plate question

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Old Feb 26, 2003 | 11:44 AM
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Default Re: ZF pressure plate question

Is the ZF pressure plate 0 balanced? The reason I ask is because I noticed the pressure plate has a yellow paint mark on it. My engine is 0 balanced and so is my flywheel. Do I have to line up the paint mark or is that just for the stock DM?

KM


[Modified by 88-406, 10:48 AM 2/26/2003]
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Old Feb 26, 2003 | 01:46 PM
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Default Re: ZF pressure plate question (88-406)

I am pretty sure the pressure plate will only go on one way.

you would be in good shape.

are you using a single mass or dual mass flywheel?
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Old Feb 26, 2003 | 01:49 PM
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Default Re: ZF pressure plate question (bogus)

I'm using a DM aluminum from McLeod.

KM
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Old Feb 26, 2003 | 04:17 PM
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Default Re: ZF pressure plate question (88-406)

Hey, I just checked and found that the pressure plate can be indexed in any location. So in other words it will bolt up in any position. Does any one know if the pressure plate has a heavy side? What does the yellow paint mark mean? Is the pressure plate 0 balanced?

Thanks

KM
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Old Feb 26, 2003 | 04:18 PM
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Default Re: ZF pressure plate question (88-406)

Actually, the pressure plate can be screwed on any one of six positions(6 bolts)...no dowel to locate it. The flywheel has the dowel-so only one way to install.

I don't know the answer to your question, but my guess is it is zero balanced as I don't remember any particular weights on it like the stock flywheel had.

Also, I just bolted mine on no particular way and have no balance issues...after 9000 miles.

:)
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Old Feb 26, 2003 | 05:26 PM
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Default Re: ZF pressure plate question (No Go)

Its zero balanced. I called Valeo on this before. I forget what the yellow dot means though. BTW, when you order a CF dual friction or a McLeod single disk, you a buying a stock Valeo pull type pressure plate. I use a stock PP with a McLeod dual friction disk and I throw 500+ lbft of torque to it with no problems.
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Old Feb 26, 2003 | 06:07 PM
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Default Re: ZF pressure plate question (89vette)

Perfect! Thanks for the info.

KM
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Old Feb 26, 2003 | 08:52 PM
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Default Re: ZF pressure plate question (88-406)

note that since the pp doesn't have dowels, you're at the mercy of slop in the bolt holes. you can tighten it up just a tiny bit off center, and depending how all the tolerances stack up, this can cause a tiny bit of vibration.
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Old Feb 26, 2003 | 09:17 PM
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Default Re: ZF pressure plate question (MSR)

hmmm... I thought my setup had a index dowel... my bad.
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Old Feb 26, 2003 | 09:38 PM
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Default Re: ZF pressure plate question (MSR)

Very good point the next balance job I do I will dowel the pessure plate
too the flywheel & balance both together for a 0 balance on my 396. :steering:

RV
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