Mercruiser 454 Mag Reversion?
#12
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#14
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Next thing is do a compression test
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marko84 (03-29-2024)
#16
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#17
I measure front & rear engine mount places in my boat.
I have to lower my engine rear mount in my test bench almost 2". Then it is same level than boat.
I hope that fix issue
I have to lower my engine rear mount in my test bench almost 2". Then it is same level than boat.
I hope that fix issue
Last edited by marko84; 03-29-2024 at 01:00 PM.
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marko84 (03-30-2024)
#19
Change motor oils and rise idle little + angle motor right.
run it about 10minut idle and have cream + oil level is upper again...
I test compression again with warm engine, all 8 are 160psi.
Pressurize engine cooling system and everythink is fine.
Take off risers and there is water laying bottom off manifolds.
run it about 10minut idle and have cream + oil level is upper again...
I test compression again with warm engine, all 8 are 160psi.
Pressurize engine cooling system and everythink is fine.
Take off risers and there is water laying bottom off manifolds.
Last edited by marko84; 03-31-2024 at 01:45 AM.
#20
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Pull some plugs and crank the motor over a few times with rags hanging in front of plug holes. See if rag gets anything on it besides gas