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Mknoxc Member Since: 17 May 2021 Location: Sussex Posts: 2 |
I have acquired a 1992 Rover V8 3.5 engine s/n 24G10456B. It came out of a fire truck so has not had a lot of use. I have performed a compression test on the cold engine and six of the cylinders were good at 120 psi (it’s 8.13 to 1), however cylinders five and six are 105 and 100 psi. I squirted some oil into the cylinders and now cylinder five is 120 psi and six is 110 psi.
My question is should I replace the piston rings in those two lowest cylinders that are 100 and 105 psi cold, or can I expect them to be OK when engine is warm? |
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23rd Nov 2022 10:47am |
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Mknoxc Member Since: 17 May 2021 Location: Sussex Posts: 2 |
Thanks for the reply. I ended up doing a full tear down and found all the pistons are worn. Also one bore is below limits (naturally the one with the lowest compression) so I’m going for a +10 rebore and new pistons to match. Cheers!
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19th Jul 2023 3:31pm |
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