compresion test and leak down test

[99 gst spyder]

I have a question, now I have my engine assemble on a engine stand.

I know I cant do a compression test but can I do a cylinder leak down test while the engine is out on a engine stand? Everything is assemble except exhaust manifold.

Compression was 150-150-150-135 when the motor is still in the car. I just took it out to do a new valve seals and HG replacement.

Can I still get a tuned with these compression at the dyno shop? I just want to get it dyno.

Thanks.

 

[cmfd]

yes you and do a cylinder leakage test on the stand just make sure you hold the engine in place. i use a 1/2 in breaker bar on the crank pully.

 

[99 gst spyder]

yes you and do a cylinder leakage test on the stand just make sure you hold the engine in place. i use a 1/2 in breaker bar on the crank pully.

Thanks. Anyone can ship in on the compression and if I should or should not get it dynoed?

 

[Captn]

You should be fine with the compression. It's not horrible, as long as the numbers are within 15% of each other you shouldn't have any issues.

Do another test when the motor is in the car and see if your numbers go up.

 

[99 gst spyder]

You should be fine with the compression. It's not horrible, as long as the numbers are within 15% of each other you shouldn't have any issues.

Do another test when the motor is in the car and see if your numbers go up.

Thanks.