OK, with all this talk of flywheel bolts, anyone have the specs on the GT6
flywheel bolts (diameter and underhead length)?
Scott
-----Original Message-----
From: Bill Babcock [mailto:BillB@bnj.com]
Sent: Thursday, March 28, 2002 1:17 PM
To: 'Barr, Scott'
Subject: RE: flywheel bolts
Once I switched to ARP bolts I haven't had any more bolt breaking or
stretching problems. I'm considering adding two more bolts as KAS
suggests, but one of my engines has a billet crank which is so hard it's
almost impossible to drill.
-----Original Message-----
From: Barr, Scott [mailto:sbarr@mccarty-law.com]
Sent: Thursday, March 28, 2002 5:00 AM
To: Bill Babcock
Subject: RE: flywheel bolts
Hi Bill. Have you ever gotten a good answer on just what is meant by
"hard"
in this context? If I were shopping for "hard" bolts, what would I look
for
-- what sort of rating system are we talking about? For example, I don't
think we're talking about the Grade 5, Grade 8 type system. And not the
AN
grades. Are we talking about the "PSI" grade that I've seen on ARP rod
bolt
packages? (e.i., 320,000 PSI)
Scott
-----Original Message-----
From: Bill Babcock [mailto:BillB@bnj.com]
Sent: Wednesday, March 20, 2002 1:07 PM
To: 'Mike Munson'; fot@autox.team.net; gatriumph@gatriumph.com; 6pack
list
Subject: RE: flywheel bolts
Yup. Breaking the bolts is a common topic. You need to get some good
bolts, not just strong but hard so they won't flex. Kas has posted
extensively on this issue. When the engine is running at any serious RPM
the crank flexes enough to make the flywheel wobble like a cheap yo-yo.
Lots of force is being applied to the bolts, and it's not all in shear.
I've taken out crank bolts that were seriously stretched, and broken more
than a few
-----Original Message-----
From: Mike Munson [mailto:fasttrs@mindspring.com]
Sent: Wednesday, March 20, 2002 10:51 AM
To: fot@autox.team.net; gatriumph@gatriumph.com; 6pack list
Subject: flywheel
Hi guys,
I pulled the transmission on my TR6 IT racecar Tuesday. The flywheel was
held
on by two bolts(barely), and the other two bolts were broken. The
crankshaft
looks like there is metal from the flywheel molecularly bonded to it! Has
anyone ever experienced this before or have an explanation for this
phenomenon? The PO must have run it a while with the flywheel loose.
Mike Munson
Atlanta
73-6 AC,Hardtop,4Wheel disc brakes
70-6 IT Racecar
80-8 wanting affection
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