Compression Test

[Biggz92]

I'm going to buy an h22 engine but i want to know how to do a compression test with engine out the car?

[Biggz92]

Can i get some advice

[QUICKwitit]

you cant the motor has to be able to be cranked

[Biggz92]

Ok Thanks

[HondaFan81]

Do a leakdown test, gives you more information than compression test anyhow. You need air compressor, appropriate gauge equipment and basic hand tools. I've read results of 10% or less is considered "good" for used engines, but 5% or less is ideal. In general the less the better. 0-3% is a common range for new engine builds.

[PR CB7]

if its jdm 260psi is what i consider good anything less than 240 i wouldnt buy

[Biggz92]

its a jdm engine

[crashandburn930]

I'm going to buy an h22 engine but i want to know how to do a compression test with engine out the car?

i had the same problem so i stuck a flywheel clutch tranny and starter on the bitch hooked up a battery straight to the starter and cranked the bitch over. got 210 and 215 out of a f22. pretty good i thought. and what should a h22a4 psi be?

[esskater892]

you can do a compression test with an engine out of the car. all you gotta do is CRANK the engine your self. your just checking it mechanically.

[wed3k]

attach a starter to it