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lq4 compression?

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Old 03-15-2019, 09:36 AM
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Default lq4 compression?

a friend and i are going to look at a lq4 today for his son, the guy sent us a video of it running (rigged up out of the truck) it sounds like it has a dead hole, he also said fuel coming out of one exhaust manifold so we are going to do a compression to help figure out if its a low compression or bad plug/coil

whats the range of compression that is good to run? how much difference between cylinders are ok?

Old 03-15-2019, 10:12 AM
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10% variance in between cylinders would be my walking point.

Old 03-15-2019, 10:26 AM
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my 240,000km junkyard 6L that I just got tested between 165-175psi on all holes with the throttle wide open if that helps you out. I haven't actually run the engine yet however, but it should be ok
Old 03-15-2019, 11:07 AM
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no telling how many miles on this engine in the pics going by what i know and have delth with it it dont look like a 200k engine (leaks grime and so on) im guessing between 100-150k on it

i was thinking 175 minimum but really dont know thats why im asking
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