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gumba gumba is offline
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Join Date: Dec 2001
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Pulled head studs on fresh 3.3 build

Just finished a complete rebuild on a 3.3 turbo motor. Did the 20 minute break in @2,000 rpm with no issues, and let the motor cool over night. Drained the oil next day, adjusted the valves and re torqued the heads to 36 lbs. Two of the studs won't torque down, so I'm assuming they are starting to pull out of the case. The rest of the studs either held the original torque, or were within a couple of pounds. I used ARP head studs and installed with red locktite.

What are my repair options? I would like to either install, or have a machine shop install time certs or helicoils in all 12 stud holes. Hopefully (and this could be wishful thinking)this could be done to the short block without splitting the case.

The motor is a '79 3.3 stock bottom end, and stock 7:1 p&c's.
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Harold
'79 930/DP935 (sold)
'68 VW 3.3 Turbo Crewcab
Old 07-13-2015, 11:28 AM
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