<VV> Fly wheel question

[Cash Case]

Thank you to everyone for info on this.
At this point I've not taken the flywheel out of the car. I am pretty  
sure that's the problem though.
Intermittent rumbling and vibration, but always when I've got the  
clutch engaged and goes away when I let the clutch out.
I have purchased a new pilot bushing and throw out bearing and clutch  
plate already.
I figured if I'm getting in there, I better replace everything. I  
don't want to have to get in there again.
Just getting the lower control arms back together is enough to make  
me hesitate.   ;op
-Cash

On Jul 21, 2007, at 11:52 PM, D. Barry Ellison wrote:

> Cash,
>
> Just to be clear on Franks procedure, DO NOT DRILL/PUNCH OUT ALL  
> THE RIVETS AT ONCE. (hence Frank's 4 at a time rivet warning)  This  
> will cause the relationship of the parts to move, i.e. possibly  
> into an out of concentric condition. Without putting a dial gauge  
> on the outer rim you can't make sure the flywheel will be  
> concentric with the crank.  This is a MUST have condition for  
> spinning parts.
>
> If you're just replacing the rivets "as an upgrade while it's  
> out" , Frank's procedure is pretty well spot-on.
>
> But then, if your flywheel has loose rivets and you removed it  
> because it's making noise, you're pretty much back to square one  
> anyhow because you can HEAR it being out of round.  It needs to be  
> done professionally.  You need to be able to mount the assy on a  
> crank and spin the crank slowly with a dial gauge on the outer edge  
> of the flywheel.  We've got a homemade jig with 2 bearings on each  
> end where the #1 and #4 main bearing journals rest.  Snug four  
> bolts, rotate it, tap the outer edge to get it concentric - until  
> it's almost perfect with as little runout as possible, something <  
> 0.001 range (if memory serves).  Tighten the 4 bolts, check it  
> again.  Redo as necessary... install remaining bolts, checking  
> runout as you go.
>
> Using the dial method above I've got maybe 5000 miles on my bolted  
> flywheel, including a 1st place finish autocrossing in St.  
> Augustine.  (think high revs, rev limited at 6k) It hasn't come  
> apart yet.
>
> If you attempt it yourself I'm sure that Frank and I will gladly  
> help you offline from VV.
>
> Barry in SC, with a professional near me to teach me things like this.
> 2 lates, 2 earlies
>
>
>> parts. Do a maximum of 4 rivets a a time, 15 minutes apart if it  
>> were a clock face. This will keep everything in alignment (if it  
>> was to start...)
>>
>
>