99 Mercruiser 7.4 mpi l29 gen vi falling on its face
#11
It sat through the winter with half a tank in it put some treatment in it when I got it. We got the fuel pump assembly off luckily without pulling the engine wasn’t in a very great spot to get to haven’t found any restrictions gonna try and replace the pressure regulator and go ahead and replace the fuel pump just cause it’s all out and don’t wanna have to try and pull it all out again any time soon. If I can find a pump for it apparently they don’t make them anymore for that motor. Hopefully that’s the problem
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articfriends (06-09-2020)
#14
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Yes that's high, your pump is fine, but regulator (item 15) isn't working or line is all clogged up going back to the fuel filter
https://www.mercruiserparts.com/bam/...31918/2705/110
https://www.mercruiserparts.com/bam/...31918/2705/110
Last edited by SB; 05-24-2020 at 08:51 PM.
#16
Update just like five minutes ago got done putting new fuel pump and pressure regulator in psi is right where it should be now hopefully when I take it out tomorrow and put it under a load it will be good to go
#17
Well crap put it under a load and it isn’t back firing anymore and it’s running smoother but still won’t get up one plane so back to the drawing board buy a boat they said it’ll be fun they said