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My 95 4Runner's compression

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Old 02-11-2007, 02:50 PM
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My 95 4Runner's compression
My 95 3.0 with 157k miles is reading:

200 200
198 205
210 205

Front

Is this abnormally high? That's the numbers if you are facing the engine from the front of the truck.
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Old 02-11-2007, 03:20 PM
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looks great to me.whats the problem
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Old 02-11-2007, 03:33 PM
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Looks like you have excellent compression, I don't know how you could have your compression be "abnormally high."
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Old 02-11-2007, 04:18 PM
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Are you sure your guage is accurate?
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Old 02-11-2007, 07:08 PM
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Well, I thought that it might be reading really high because of excessive carbon build up?
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Old 02-12-2007, 08:53 AM
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Could be a lot of carbon build up. Do you have any pinging?
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Old 02-12-2007, 09:00 AM
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You can see here the 3vze factory specs are 142-171 psi:
http://personal.utulsa.edu/~nathan-b...66compress.pdf
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Old 02-12-2007, 09:02 AM
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Did you do the test with all the plugs out or just one plug at a time?
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Old 02-12-2007, 10:00 AM
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'm not sure how it was done, my friend who is a Toyota tech did it when he replaced my headgaskets a few months ago. And to answer your question Marc, it's not pigining as far as I can tell
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