Re: Compression
Bup...compression on a cylinder is just that. It's own individual compression.<br /><br />Generally speaking, 90+ on a cylinder is great. If all cylinders are within 10 to 15% of each other, this is condidered good. But like Rick pointed out, this is just a figure.<br /><br />Example, if a V4 has 80 to 85psi on each cylinder, I would say that ain't bad and would not see any reason to do any rebuild. Just as long as the owner takes care of the engine and does the right things, tune ups, decarbs and such, he should get a long life from the engine.<br /><br />It's when you see readings that are way outta range from each other that it's time to start worrying.<br /><br />I hope I explained that OK. Not real great with words..
