failed compression test
02-17-2004, 03:33 PM
#2
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Join Date: Mar 2003
Location: Pasadena,ca
Posts: 10,109
Moved to turbo forum
Could be a bad valve. Is this cold or hot engine? Try putting a little oil in the low cylinders and see if that fixes it. Could also be the HG.
Could be a bad valve. Is this cold or hot engine? Try putting a little oil in the low cylinders and see if that fixes it. Could also be the HG.
Last edited by -HyJynX-; 02-17-2004 at 03:38 PM.
02-17-2004, 09:54 PM
#5
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Join Date: Feb 2004
Posts: 26
If its a turbo motor, maybe it was overboosted and it has bad rings in those two cylinders. Prolly not though just cuz with over boosting all the cylinders usually have the same low reading. Like Hyjynx said, might be bad valves. Put a layer of liquid soap around the head gasket and manually crank the motor, if you see bubbles, its the head gasket.
wtf?
02-23-2004, 12:21 PM
#8
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Join Date: Oct 2003
Location: So Fla
Posts: 163
it can be a combination of things......think aboot it, what is the area that is being compressed? Now, where can that compression go to if its not being contained....either up or down. Going up would cause it to be a bad hg or down would give you blow by/bad rings/broken ringlands/etc.
02-23-2004, 09:28 PM
#9
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Join Date: Dec 2003
Posts: 265
Originally posted by Romeyo07
it can be a combination of things......think aboot it, what is the area that is being compressed? Now, where can that compression go to if its not being contained....either up or down. Going up would cause it to be a bad hg or down would give you blow by/bad rings/broken ringlands/etc.
it can be a combination of things......think aboot it, what is the area that is being compressed? Now, where can that compression go to if its not being contained....either up or down. Going up would cause it to be a bad hg or down would give you blow by/bad rings/broken ringlands/etc.
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