Author Topic: One piston firing & bad oil  (Read 1298 times)

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126redbomb

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One piston firing & bad oil
« on: July 28, 2022, 10:59:26 PM »
Hey guys! I'm currently picking the BIS back up as a project to get her running for shows ready for next year, but it seems like only one piston is firing, and the engine is rocking really bad at the idle, which seems like it is so slow that it is about to cut out. Any help? Also, I think I have a water leak into my oil, what could be causing this? Thanks in advance!  :D

Minijohn

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Re: One piston firing & bad oil
« Reply #1 on: July 29, 2022, 09:08:02 AM »
Sounds like a head gasket to me.
First thing to try would be a compression check