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Author Topic: Compression testing - help please  (Read 1013 times)

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The Barge Captain

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Compression testing - help please
« on: 13 August 2006, 19:49:46 »
Silly question I know, but how do i compression test my omega? (yes I do have a tester), only the last car i used it on, i was able to dissconnect the LT from the coil so the darned thing wouldn't start.  What do i need to do on the 2.0 lump? especially as I don't want to pump unburnt fuel into the cat - it's loosing fur as it is!
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Marks DTM Calib

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Re: Compression testing - help please
« Reply #1 on: 13 August 2006, 20:36:16 »
Remove the fuel pump relay or disconnect the crank sensor......dont forget you need throttle fully open for a compression test.

But, looking at your other post, it will be blocked breathers causing the crank case pressure.
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The Barge Captain

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Re: Compression testing - help please
« Reply #2 on: 14 August 2006, 09:29:00 »
OK thanks. I willl give this a try. Hopefully reducing the pressure will mean that i won't need to replace the gasket.
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