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compression testers - to determine if my vr6 has worn piston rings?


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hi guys, ive got a standard compression tester for my golf vr6, now obviously this wont determine if its a worn cylinder head or bottom end as the car is a bit smokey (blue - oil)

 

with a compression tester i will do the test first when the engine is warm, then  add a bit of oil to the cylinder again, if it rises a lot i believe thats the case for a worn piston ring? how much oil in ML do i need to add?

 

or has anyone got a leak tester local to bromley in kent who wants to pop over and earn some ££ :grin:

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Hello, when you do your compression test, they should all be within 10% of each other. If not then there is your problem....

 

As for the oil, just a small amount such as a spoonfull or eggcup...

 

After that a leak down test as youve mentioned would be wise.

 

read this mike, what do you think? i added just under a tablespoon

 

http://www.vr6oc.com/forum/topic/45474-results-from-my-vr6-dry-wet-compression-tests/

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