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Posted by: Cfletch Dec 8 2014, 01:57 PM

I recently purchased all the goodies for my 2.7 to mate to my 901 box. the ring gear adapter, clutch, and PP. Im having issues though trying to get my flywheel and ring gear mated the the measurements seems to be a tad off on the adapter and I cant put them together. Should I just do a hot cold thing to try and get the metal expanded to where itll fit together or what?

Posted by: SirAndy Dec 8 2014, 02:07 PM

How much are they off?

I would think something isn't right, it shouldn't take heat or cold to make things fit.



PS: Here's my setup, lightened 993 flywheel, ringear adapter and KEP Stage 3 clutch and pressure plate:

Posted by: Cfletch Dec 8 2014, 02:19 PM

the 1st one is in the hole where the other 2 are off just a tad...

Posted by: SirAndy Dec 8 2014, 02:31 PM

I'm confused. Is that ringgear cut down at all? This looks like a complete flywheel.

Posted by: Cfletch Dec 8 2014, 02:39 PM

Am I just being dumb.. this is very likely, as im also working on studying for finals.

Posted by: SirAndy Dec 8 2014, 03:28 PM

The ringgear goes on the surface side of the flywheel. The pins are used to locate the pressure plate to the ringear, not to mount the ringear to the flywheel.

Posted by: SirAndy Dec 8 2014, 03:31 PM

Maybe this pic helps ...

Posted by: Cfletch Dec 8 2014, 03:37 PM

so like this? there is no end to my stupidity

Posted by: SirAndy Dec 8 2014, 03:42 PM

Yes, that's more like it. Does the ringear fit flush with the flywheel? Hard to tell from your picture.

Posted by: Cfletch Dec 8 2014, 03:46 PM

No... but it could be because I heated up the gear and cooled the flywheel. Hopefully thats why, if not what would I need to do?

Posted by: SirAndy Dec 8 2014, 03:49 PM

Good question.

It also looks like your ringgear is missing the mounting holes to secure it to the flywheel.
On mine, the pins were removed and the holes reused to countersink bolts to mount it to the flywheel.
The other 6 remaining holes are used to mount the pressure plate to the ringgear.

Where did you get your parts from?

Posted by: Cfletch Dec 8 2014, 03:50 PM

I purchased everything directly from KEP

Posted by: sixnotfour Dec 8 2014, 03:52 PM

Is the new resurfaced area flat all the way to the flange 360 around ?? I looks like the resurface may not be 100% centered to the flange, leaving a step ??


Andy the ring gear is part of the spacer on this style..

Posted by: Cfletch Dec 8 2014, 03:53 PM

Also my kit only came with the 6 larger bolts.

Posted by: SirAndy Dec 8 2014, 03:55 PM

Hmmm. If you look at my ringgear picture, you can see 3 larger holes. That's where the pins were originally. The holes were enlarged (but not all the way through) and 3 countersunk bolts were used in there, then 6 bolts were used to mate the pressure plate to the ringgear (those were longer bolts going all the way into the flywheel).

I'm guessing just using 6 long bolts and leaving the pins would probably work OK for your application.

Posted by: SirAndy Dec 8 2014, 03:56 PM

I know that but if you look at his picture, it looks like the ringear does not evenly touch the flywheel surface.
If it sits on the outer lip, the flywheel needs to be machined to make it sit flush.

Posted by: Cfletch Dec 8 2014, 04:00 PM

heres some close ups to my flywheel

sorry for blurryness but you get the gist

Posted by: SirAndy Dec 8 2014, 04:03 PM

The ringear is supposed to fit inside tightly and make full contact with the flywheel surface.

Also note that the inner edge of the ringgear is often chamfered and can make it appear as if it doesn't sit flush when in reality it does.

Posted by: Cfletch Dec 8 2014, 04:14 PM

Ok, sweet thank you Andy. I'd imagine ill have many more dumb questions about this conversion so I hope to see you around.