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-   -   Broken head studs galore..... (http://forums.pelicanparts.com/911-engine-rebuilding-forum/913276-broken-head-studs-galore.html)

matt930s 05-07-2016 05:48 AM

Broken head studs galore.....
 
Hello PP experts-

Based on the lengths in the pic below, will I have enough material to get these damn Dilivars out? Or will I be drilling?

These are just lowers.... Motor is a 78 3.0....still in the car...

MattR
http://forums.pelicanparts.com/uploa...1462628753.jpg

boosted79 05-07-2016 06:56 AM

On the ones over 5" no. Maybe try the weld a nut method.

boyt911sc 05-07-2016 07:43 AM

Broken head studs.......
 
If you have 5" or less, there would be ample exposed stud on the crankcase you could use to hold or grab during extraction. Maybe max. of 5.25" could still leave something to grab on. The total length the Dilavar head stud is about 6.5" and the threaded section that goes to the crankcase is about 1". Anything close to 5.5" would have nothing to grab on and most like the remnant stud is flush to the crankcase outer surface.

Remove the cylinder cooling tin to have a good look on what is left. Keep us posted.

Tony

Dpmulvan 05-07-2016 07:57 AM

One thing for sure you won't be drilling.

Flat6pac 05-07-2016 05:55 PM

You don't have to worry about the tops. You do have to worry about the longer ones, they will get into your wallet big time.
Bruce

Reiver 05-07-2016 06:29 PM

Off subject but what mileage is on the motor?

matt930s 05-08-2016 04:34 AM

Quote:

Originally Posted by Reiver (Post 9110951)
Off subject but what mileage is on the motor?


Broken odo, but figure right around 100k.....

MattR

matt930s 05-08-2016 04:36 AM

Quote:

Originally Posted by boyt911sc (Post 9110247)
If you have 5" or less, there would be ample exposed stud on the crankcase you could use to hold or grab during extraction. Maybe max. of 5.25" could still leave something to grab on. The total length the Dilavar head stud is about 6.5" and the threaded section that goes to the crankcase is about 1". Anything close to 5.5" would have nothing to grab on and most like the remnant stud is flush to the crankcase outer surface.

Remove the cylinder cooling tin to have a good look on what is left. Keep us posted.

Tony


Thanks Tony, will do....since I have my 911e in pieces already, I wasn't planning on having another car apart at the same time...aargh....


MattR


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