Testing piston rings and pistons while in car???

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Andrew Davenport - 05 Mar 2004 15:35 GMT

Hi all,

Quick question, is it possible to test for cracked/broken piston rings,
cracked pistons or other bore and piston related problems with the pistons
in the car?

Cheers

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egor@notnow.com - 05 Mar 2004 19:19 GMT

>Hi all,
>
>Quick question, is it possible to test for cracked/broken piston rings,
>cracked pistons or other bore and piston related problems with the pistons
>in the car?

only with a compression tester but it wont tell you which is wrong but
just that there is something wrong

>Cheers

likewise

-anthony

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me - 06 Mar 2004 01:20 GMT

>>Hi all,
>>
[quoted text clipped - 4 lines]
> only with a compression tester but it wont tell you which is wrong but
> just that there is something wrong

Check your compression firstly dry then add oil and compare the difference.

One tests the overall and second seals the ring/piston and checks the
valves.

>>Cheers
>
> likewise
>
> -anthony

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Kelley Mascher - 06 Mar 2004 02:34 GMT

Do a Google search on a leak down test. This is a more detailed test
than a compression test and should give you a better idea.

Cheers,

Kelley

>Hi all,
>
[quoted text clipped - 3 lines]
>
>Cheers

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