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A930Rocket A930Rocket is online now
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Join Date: Oct 2003
Location: Mount Pleasant, South Carolina
Posts: 14,816
Queston for the Lubemaster...

From some of your posts recently, I take it you're a metallurgist?

What would cause the cam below to snap while installing?

I hope forwheeler doesn't mind me posting it here?

http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/543468-cam-broke-during-install.html

How is this even possible? I was not even near the 110 ft lbs while tightening the nut and then it started getting loose again and then...

It was an SC profile from web cams. It was in the engine for years and then I sent it to web cams to get reconditioned and I was installing it again. They said they have never heard of this happening.
I had the torque wrench set for 110 but I am guessing I had about 75 on it at the time it broke. Yeah I guess it is better it broke now instead of later.
So I will be getting a new SC cam from them. I will need to pay the core charge since I don't have a good cam to send them now. Does anyone have a SC cam good or bad I can send them for a core?


Old 05-21-2010, 08:50 AM
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