The last aluminum flywheel that I sheared off had two dowel pins and four
stock bolts with lock tabs. Cost me a close ratio dog box, which I dropped
onto the track at a buck thirty. I'll stick with steel--three times is two
times too many. The Cambridge Motorsports flywheel I use weighs 7.7 pounds
and is available drilled to hold as many as 12 flywheel bolts.
http://shop.cambridgemotorsport.com/product_templates/product_default.cfm?me
nu_temp=tr4_cylinder.cfm&dep_id=1&prod_id=514&ass_id=13 The steel crank they
supply is also drilled for 12 bolts and dowels. I already had a steel crank,
so I had a machine shop add more holes.
295 pounds for the flywheel is a lot less than the 1500 pounds for the
transmission I lost. You can get one all set up with a Quartermaster clutch
from Cambridge. In my case I already had the flywheel, so I had a machine
shop mount the clutch.
-----Original Message-----
From: WEmery7451@aol.com [mailto:WEmery7451@aol.com]
Sent: Wednesday, October 05, 2005 6:07 PM
To: Bill Babcock; gkbyrne@optushome.com.au; fot@autox.team.net
Subject: Re: PowerTrain Clutch
In a message dated 10/5/05 7:05:11 AM Pacific Daylight Time, BillB@bnj.com
writes:
<< Be really careful about that aluminum flywheel. I've broken flywheel
bolts way too many times with aluminum wheels. >>
I sheared off the flywheel bolts a couple of years ago using an aluminum
flywheel. I contacted Jack Wheeler, who also had the same problem. He
corrected his problem by getting two dowel pins made, the same length that
the flywheel is thick. He then used the stock flywheel bolts and locking
tabs. He felt that he never found any bolts for that application that were
better. Tying two bolts together may also give you a little added strength:
<<Subj: Re: Flywheel Bolts
Date: 7/12/04 7:38:23 AM Pacific Daylight Time
From: WEmery7451
To: john.c.wheeler@Cummins.com
In a message dated 7/12/04 6:16:22 AM Pacific Daylight Time,
john.c.wheeler@Cummins.com writes:
<< I always used stock flywheel bolts. Stock bolts, two dowel pins, and
lock tabs covering the dowel pins = no problems! >>Thanks, Jack.>>
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