986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Exhaust manifold

eightsandaces · 05-24-2010, 02:53 PM

IMO, the seizing of the head bolts can be an issue in any environment. I would soak them thoroughly with break free. In any case you may break one or more it happens, I was being insanely careful the bolts just give. If you do break one, there are solutions provided you stop when it happens and assess the situation after hours off the project.

I broke two, one on each side in the same spot, had to be heat related, anyhow, I had to put timeserts in the head, so far I have detected zero exhaust leaks. If they do break, don't try to drill with anything but the hardest of bits, I used titanium successfully. It was a journey on my back in February but the sound is so cool I have not played the stereo since.

05-24-2010, 02:53 PM	#4
eightsandaces Registered User Join Date: Feb 2009 Location: Buffalo NY Posts: 828	IMO, the seizing of the head bolts can be an issue in any environment. I would soak them thoroughly with break free. In any case you may break one or more it happens, I was being insanely careful the bolts just give. If you do break one, there are solutions provided you stop when it happens and assess the situation after hours off the project. I broke two, one on each side in the same spot, had to be heat related, anyhow, I had to put timeserts in the head, so far I have detected zero exhaust leaks. If they do break, don't try to drill with anything but the hardest of bits, I used titanium successfully. It was a journey on my back in February but the sound is so cool I have not played the stereo since. Last edited by eightsandaces; 05-24-2010 at 02:56 PM.