I have an '88 740 Turbo with 225k miles. Recently had a head gasket replacement job done and the mechanic failed to notice broken manifold bolts when he reassembled the engine. Couldn't tighten the manifold tight enough to seal exhaust leaks so I was faced with having to repair the head or replace it. Chose to replace it with a low mileage, newer technology head from a '94 Turbo I found on the Turbobricks classified site.
Mechanic indicated that following installation the car idled just fine for about 10-15 minutes. However, it locked up within 3 miles of the repair shop in moderate (slow) driving conditions. Towed back to shop and found that the timing belt had stripped some of the gears/teeth and the head was locked up tight. He also stated that oil pump appears to be fine and that oil pressure doesn't appear to have been a problem.
What could have happened? I've got a major repair bill already and may be still looking at yet another head replacement.
Help!!!!!
Mechanic indicated that following installation the car idled just fine for about 10-15 minutes. However, it locked up within 3 miles of the repair shop in moderate (slow) driving conditions. Towed back to shop and found that the timing belt had stripped some of the gears/teeth and the head was locked up tight. He also stated that oil pump appears to be fine and that oil pressure doesn't appear to have been a problem.
What could have happened? I've got a major repair bill already and may be still looking at yet another head replacement.
Help!!!!!