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stepped flywheel
Posted by: jermech ()
Date: May 13, 2018 07:05PM

Anyone know the difference between the step and face of the stepped flywheels?
There is no specs listed in shop manuel. 1966, 140

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Re: stepped flywheel
Posted by: MattNall ()
Date: May 13, 2018 07:10PM

Welcome to the CCF! About time you posted!

Someone here will know.... a few here rebuild flywheels commercially, as well as many racers..





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: stepped flywheel
Posted by: Vairismo ()
Date: May 14, 2018 07:58AM

it is .125"

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Re: stepped flywheel
Posted by: MattNall ()
Date: May 14, 2018 08:12AM

Thanks!





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: stepped flywheel
Posted by: Timothy Shortle ()
Date: May 14, 2018 08:25AM

I never knew the spec but it is obvious when comparing an early with a late flywheel.

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Re: stepped flywheel
Posted by: vairmech ()
Date: May 14, 2018 09:17AM

It's visually obvious but when you resurface you need to know that spec!

Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com

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Re: stepped flywheel
Posted by: corventure Dave ()
Date: May 14, 2018 03:12PM

The 62 and 63 Turbo pressure plates had spacer washers spot welded to the pressure plates at the 6 mounting bolt holes. These were .125 thick.
Interesting Eh?

Corventure Dave

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Re: stepped flywheel
Posted by: Max Roeder ()
Date: May 14, 2018 05:24PM

The spec. is .121"-.129"

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Re: stepped flywheel
Posted by: BobV66Vair ()
Date: May 15, 2018 09:14AM

Can one use the .125 spacers to allow a LM pressure plate to attach to an EM flywheel? The spring pressures are better on the LM but I have a nice aluminum EM flywheel I want to use.

Bob Vinnacombe
Sandy, Oregon
1965 Corsa 140 stock
1966 Monza Soon to be race car
1968 Monza Parts for now

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Re: stepped flywheel
Date: May 15, 2018 09:40PM

Dale manufacturing gave me a go/no go gauge for that and I think .120 is about right. Don't forget the correct depth for the groove - it's .100.

Lon Wall
www.corvairunderground.com

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Re: stepped flywheel
Posted by: vairmech ()
Date: May 16, 2018 04:22AM

BobV66Vair Wrote:
-------------------------------------------------------
> Can one use the .125 spacers to allow a LM
> pressure plate to attach to an EM flywheel? The
> spring pressures are better on the LM but I have a
> nice aluminum EM flywheel I want to use.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

The answer is yes! I did that on my blue race car with an aluminum flywheel. The magic number is 3 standard washers.
If you want to use the HD 180/140 PP be sure and cut the heavy lugs off the pressure face and rebalance the PP.

Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com

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Re: stepped flywheel
Posted by: texas yenko dude ()
Date: May 16, 2018 05:55AM

BobV66Vair Wrote:
-------------------------------------------------------
> Can one use the .125 spacers to allow a LM
> pressure plate to attach to an EM flywheel? The
> spring pressures are better on the LM but I have a
> nice aluminum EM flywheel I want to use.


As Ken said YES. I use steel inserted early alumn flywheels in the race car with late pressure plates and .125 washers. It works great. The early style alumn flywheels are easier to find, so that's why I use them.

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Re: stepped flywheel
Posted by: BobV66Vair ()
Date: May 16, 2018 06:32AM

Thanks, I'll do just that.

Bob Vinnacombe
Sandy, Oregon
1965 Corsa 140 stock
1966 Monza Soon to be race car
1968 Monza Parts for now

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Re: stepped flywheel
Posted by: vairmech ()
Date: May 16, 2018 09:51AM

I will not use the steel inserted flywheels I use the Scheafer aluminum flywheels.



Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com

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Re: stepped flywheel
Posted by: The Stig ()
Date: August 01, 2018 07:35PM

corventure Dave Wrote:
-------------------------------------------------------
> The 62 and 63 Turbo pressure plates had spacer
> washers spot welded to the pressure plates at the
> 6 mounting bolt holes. These were .125 thick.
> Interesting Eh?
>
> Corventure Dave

I am guessing that's what these are? This was in the powertrain I just pulled from my '64 Rampside. Nothing was original. I was walking the early flywheel that had been welded to the scrap bin, and went to grab this to toss in as well.


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Re: stepped flywheel
Posted by: Frank DuVal ()
Date: August 01, 2018 08:25PM

Geoff, that is a turbo pressure plate, no need to toss unless something is actually wrong with it.smileys with beer

Frank DuVal

Fredericksburg, VA

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Re: stepped flywheel
Posted by: corventure Dave ()
Date: August 02, 2018 04:13PM

Yep... Early Turbo Pressure Plate.

Corventure Dave

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Re: stepped flywheel
Posted by: jjohnsonjo ()
Date: August 02, 2018 04:24PM

Turbo PP is also made from a higher quality iron than standard

J.O.

65 Corsa Turbo Vert
79 Honda XL 500S
69 Honda CL 160 D
2010 BMW F 650 GS
2003 Bounder 36D
2013 KIA Optima SX turbo-AKA ZIPPY (wife,s car)
69 Newport Holiday Sailboat
Baja 150 dune buggy cart
Coleman HS 500 UTV
2016 KIA Sorento SXL Turbo

Bethlehem,Pa

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Re: stepped flywheel
Posted by: The Stig ()
Date: August 02, 2018 04:26PM

So what throw out bearing does this use ?

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