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#3
April 27th 07, 03:12 PM
posted to rec.aviation.owning
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Lycoming 0-320 Exhaust studs working loose
Orval Fairbairn wrote:
In article et, Mike Spera wrote: I have had intermittent problems with 0-320 exhaust studs working loose, usually with overhauled cylinders. I understand it if I have a stubborn nut to remove for a gasket change and the stud comes out with it. I SNIP Any engineers know why studs are used on exhaust systems in general? They are cheaper. Helicoil is the standard repair. In addition, there are 0.010 oversized studs available to tighten up the loose fit. It would be interesting to hear from someone with metalurgic experience. I wonder if stainless studs may not be as able to withstand the very high heat that these studs experience? --- Jay -- Jay Masino "Home is where My critters are" http://www.JayMasino.com http://www.OceanCityAirport.com http://www.oc-Adolfos.com 
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