I am about to buy a car with a rebuilt engine, only have above 2000 miles on it. The owner rebuilt the engine himself. It has hot-start problems and he said the last time he did a test on it it showed 95psi in the front 77psi in the rear. I do not know when he did the test, I just sent him an e-mail asking, it could have been done right after the rebuild. He also explained he doesn't know how reliable the test was. I just don't see how it could run so well with 77 in the rear. When I test drove it it was smooth, idle was great, and had comparable power to my last TII. So, is it possible to run with that low of compression?

 

sure...77 is low but the car will still run..heck even if you blew a seal the car will still run just rough..

 

I think you should ask yourself why a rebuilt engine only has 77 PSI in the rear rotor...

Must not have been much of a rebuild.