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OK to do compression test on a cold engine?
I need to do a compression test. I know the standard advice is to warm the engine first, but I can't because the car won't start. (Broken timing belt.) Going by what I've read, the most important thing is that the cylinders' readings match up with each other, not that they match up with the manual. If I do the test on a cold engine and all the cylinders hold fairly equal compression, how safe am I to assume there's no engine damage?
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