Thread: Side Pipes
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Old 07-24-2008, 08:09 AM
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Join Date: Jul 2008
Location: Knob Hill, Monterey, CA
Cobra Make, Engine: 931 mangled in parkinglot incident - traded for new house roof <sob>
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Quote:
Originally Posted by RonNichols View Post
I've had my side pipes off quite a few times over the past year. I used to use stainless fasteners until recently. It seems that I have run into shoddy fasteners that once torqued, would seize, and then I simply just unscrewed them into two broken pieces. The box had an origin sticker that said "made in China" so I just figured I would change. I have since replaced the fasteners with grade 8 bolts with a serated flanged nut seated onto washers on both sides of the flange. After several months of heat cycling, its still tight.

R
Ron,
As you have found out sometimes those high end bolts are not right for certain applications....just to brittle.
I find it interesting that your big bore pipes made less power than your smaller ones. So you are saying smaller is better?

Long live the Cobra!!
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