Compression test

LARKSMUFF

MEMBER
1992 VOLKSWAGEN GOLF
2.8L
VR6
2WD
MANUAL
200,000 MILES

Is there anyway I can do a compression test to know the engine actually works? The engine is not wired up.

Thursday, October 26th, 2017 AT 5:32 PM

3 Replies

STEVE W.

MECHANIC
13,003 POSTS

Sure, just use a regular battery and jumper cables to jump the starter and crank it over for the test. Just prop it up so it is solid and the flywheel is clear. Pull all the plugs. Then connect the battery positive to the starter and connect the negative terminal at the battery end. Connect the other end to the block. Use a piece of wire or a remote switch to activate the starter.

Run both a dry and a wet test if the engine has not been run in a while as setting can cause issues.

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Thursday, October 26th, 2017 AT 6:03 PM

LARKSMUFF

MEMBER
2 POSTS

Thank you so much! I will give this a try and get back to you.

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Thursday, October 26th, 2017 AT 6:15 PM

KEN L

MASTER CERTIFIED MECHANIC
42,968 POSTS

Here is a guide hat can help as well:

https://www.2carpros.com/articles/how-to-test-engine-compression

Please let us know what happens.

Cheers, Ken

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Friday, October 27th, 2017 AT 2:12 PM