If you follow Greg's suggestion, be careful to only heat the bolt head, not the surrounding area, and let it cool off before you do anything else. This should not be difficult to do if you use an oxy torch with a small tip, and hold the tip right in the center of the bolt head. Then reapply Penetrene to the bolt area, and wait an hour or so for it to soak in, before you try to undo the bolts. As Greg said, this often works, because the bolt heats up more than the thread it is in, and when it expands due to the heat it tends to break the rust-bond between the two parts. It may also reduce the brown rust to black FeO, which occupies less volume: this also tends to unfreeze the bond between the parts.
Remember, if the shock clutch or crankshaft seal gets hot, you will have some extensive work to do, and expensive parts to replace.
Last edited by grumpy; 06/01/12 09:49 AM. Reason: Add detail
