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-   -   I had a bad day . . . (http://forums.pelicanparts.com/911-engine-rebuilding-forum/358208-i-had-bad-day.html)

sms1305 07-20-2007 05:31 PM

I had a bad day . . .
 
Turns out that one of my head studs were bent, so after installing all the cylinders I decided I needed to remove it.

While taking it out, the stud came out with the timesert. As if that wasn't bad enough, it damaged the bottom of the cylinder. I don't know what to do.

http://forums.pelicanparts.com/uploa...1184981309.jpg

http://forums.pelicanparts.com/uploa...1184981498.jpg

john walker's workshop 07-20-2007 07:43 PM

install another timesert and carefully file the cylinder base flat. new studs are not usually bent. did you do all the drilling and threading for the inserts in a mill, or by hand?

sms1305 07-21-2007 10:57 AM

John: Always great to see you posting on one of my problems...

I had the inserts done by a machine shop in Reno, by Augie, through EBS.

I didn't notice the stud was bent when I took it out, but noticed when I put it in.

Stupidly, I left it in before I decided to replace it. By then the loctite had set. When I was taking it out, the cylinder was already mounted. I didn't realize it was pushing against the bottom of the cylinder until it had already gouged it.

Local machinist inspected and filed the bottom for me - for the cost of a 6 pac.

I got a replacement timesert from a local Porsche mechanic (Derrick at Eurosport in Virginia Beach) along with his installation tool. Howerver the insert measures .8 inches and it seems a little shorter than what was put in by the machine shop. The insert I have doesn't cover all the stud threads. Is there a longer version that would be better?

Thanks!

john walker's workshop 07-21-2007 03:53 PM

there is a longer one. don't use the shortie. timeserts are kind of soft for this application.


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