Just HOW important is it to balance the pressure plate...

[DurocShark]

...with the rest of the rotating assembly?

Apparently Kennedy is having trouble getting their Stage 1 pressure plates out. DPR is holding onto my stuff waiting to get one in, but I want to get started on the build.

I guess I'm frustrated and need someone to tell me to stfu and be patient.
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[Wreck]

AA pistons have Kennedy pressure plates . https://aapistons.com/collections/clutch-covers/pr...type-1-2-3

[modok]

This has been discussed many times before. Let me give you the recap, phrased like a test from auto shop class

Mechanic A says:
pressure plates are already balanced and should be in tolerance if mounted with less than .004 runout.

Mechanic B says
Always need to be balanced when i check em,
What's a runout? Is that what happened to your girlfriend?

Mechanic C says
never had a problem with it,
I ported my own heads and now fire comes out the tailpipe!

Guy at the pressure plate factory says:
50% of people are below average intelligence, they won't notice know the difference.

Who is right?
Your mileage may vary.


All of the above

[67rustavenger]

Wait for it. And have it balanced.
I have a late KEP stage 1 PP that has been balanced.
But it was the wrong PP for a 67. So it sits.
This was balanced with the whole rotating assembly a few years ago.
But it definitely needed to be balanced.
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[DurocShark]

I split the difference. I told DPR if they can get one by the end of the week, I'll wait. If not, balance without and I'll roll the dice.
_________________
No boom today. Boom tomorrow. There's always a boom tomorrow.

[DurocShark]

[DurocShark]

I'm probably C...
_________________
No boom today. Boom tomorrow. There's always a boom tomorrow.

[evanfrucht]

My KEP stage 1 was pretty off, so knowing that, if I did it again I would
wait and have it all balanced together. And this is coming from someone who might be a bit of a type C kinda mechanic too
_________________
1967 Bug ( the daily rod )
1964 Fury Wagon ( the pavement shredder )

[vwracerdave]

I personally feel a pressure plate SHOULD be balanced independently of the crank & Flywheel. You SHOULD be able to just bolt it on and go.
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2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK
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[Ohio Tom]

What happens when you need a new pressure plate?

[Brian]

[evanfrucht]

They have them here too BTW http://carcraftstore.com/performancepressureplates.aspx
Just order it and have it sent to DPR, they are quick with shipping.
_________________
1967 Bug ( the daily rod )
1964 Fury Wagon ( the pavement shredder )

[k@rlos]

[Ohio Tom]

[modok]

Glad to see mechanic A well represented. usually, B is more common, Though of a good joke to for character B

"What's a runout?, is that what happened to your girlfriend?"
I'll put that in there

[oprn]

I suspect that to balance a pressure plate on it's own you would have to built a jig of some sort to mount it on a balancer. So if the machinist is not set up with one, then it makes sense to just add it to the rotating assembly and and do them together. He doesn't want to build a jig for every make and model that comes through the door. That possible?

In theory if it's balance on it's own then it's balanced. If the crank is balanced on it's own it's fine to put the two together. I can also see the argument for a stack up of tolerances but maybe that's just a little obsessive compulsive for us regular guys.
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Our cars get old, we get old but driving an old VW never gets old!

[bnam]

Don’t pressure plates come balanced from the manufacturer? Iirc, Bentley says the mount it so that the pressure plate balancing marks are 180 deg from the flywheel balancing marks.
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1971 1302LS Convertible (RHD) owned since '74
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1965 Karmann Ghia Coupe - under restoration
1966 Fiat 1500 Cabrio (with 1600 Twin cam)
1952 Citroen TA 11BL

[modok]

Makes sense.

[BIGMIKEY]

Thanks for bringing that up oprn. Can anyone explain how a pressure plate is balanced by itself?

Mike T
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BIGMIKEY

Deserter Series 1 project.
https://www.thesamba.com/vw/forum/viewtopic.php?t=787047&highlight=

1973 Beetle Driver, Marina Blue.

[oprn]

I really don't know for sure, that is my guess only. It would have to be mounted in a manor like it is on the flywheel...
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