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Somatic Negative Optimist
Join Date: Mar 2002
Location: Winlaw, BC, Canada
Posts: 7,206
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I just did this on an '82 case. After ALL nuts are out, I used a small bottle jack between the two long studs on the clutch-side to carefully seperate the halves. Keep it close to the case to prevent the long bolts from bending; all you need is a little crack to break the old seal.
Make sure that ALL nuts are removed; one was hiding on me.
If the Dilavar studs look good, keep them.
I replaced the exhaust studs with steel ones.
If you don't plan to keep the Dilavars, double-nut them on top really tight, put a vice-grip on the bottom close to the case.
By using both vice-grip, and a wrench on the double-nuts together, I had no problem getting the studs out. A little heat from a propane torch on the case around the stud will help.
Clean out the threads with the right size/pitch 12mm bottom tap. Blow the holes out with air and clean the holes with Alcohol. Blow them dry. Clean the new studs, use thread locker and set the new studs to 135mm.
With common sense, and Wayne's book, you can do it.
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1980 Carrerarized SC with SS 3.2, LSD & Extras. SOLD!
1995 seafoam-green 993 C2, LSD, Sport seats. 
Abstract Darwin Ipso Facto: "Life is evolutionary random and has no meaning as evidenced by 7 Billion paranoid talking monkeys with super-inflated egos and matching vanity worshipping illusionary Gods and Saviors ". 
Last edited by Gunter; 10-03-2005 at 08:58 AM..
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