Help!! Broken exhaust manifold bolts (2nd time)
#1
Help!! Broken exhaust manifold bolts (2nd time)
Hi, I purchased an 86 944 turbo 9 months ago with 40k miles. Twice in the last 2 months I've hade the exhaust manifold studs nearest the firewall at the rear of the engine break off in the head. Does anyone have any idea as what would cause this?? My local repair shop now wants to drill out and replace the stock 8mm studs with bigger studs, say 10mm. I'm not sure if this is solving the problem or just treating the symptom. What would cause these studs to break off like this. Any info would be a great help!!!
Thanks, Dave
Thanks, Dave