Had my mechanic take the boat out for a sea trial and checkout a problem I'm having. Recently had the injectors cleaned and it ran smooth and quiet but only got to 4200 rpm. After about 15 minutes it wouldn't get past 3000 rpms and limped back to the marina.
He experienced the same symptoms on the sea trial. I have replaced all fuel system elements up to the motor(tank cleaned previously).
He said the pressure was ok at idle and when he throttled up it quickly dropped off to 9 psi or so. Sputtered and dropped to 0 then died. After waiting a few minutes he was able to get it restarted and back to the marina. He pulled the intake and VST and said it was clean, no issues. He did multiple checks that I can't list here.
He said the high pressure fuel pump was hot when he pulled everything(this was at least 15-20 minutes) and he wants to replace it.
My question is - does this make sense? I suspected the standard fuel issues and thought we'd find residue in the VST. If the rail can't hold pressure and the tank/filter is clean does it point to the pump? Again, it ran great previously for a short time but never achieved good rpms.
Thanks
He experienced the same symptoms on the sea trial. I have replaced all fuel system elements up to the motor(tank cleaned previously).
He said the pressure was ok at idle and when he throttled up it quickly dropped off to 9 psi or so. Sputtered and dropped to 0 then died. After waiting a few minutes he was able to get it restarted and back to the marina. He pulled the intake and VST and said it was clean, no issues. He did multiple checks that I can't list here.
He said the high pressure fuel pump was hot when he pulled everything(this was at least 15-20 minutes) and he wants to replace it.
My question is - does this make sense? I suspected the standard fuel issues and thought we'd find residue in the VST. If the rail can't hold pressure and the tank/filter is clean does it point to the pump? Again, it ran great previously for a short time but never achieved good rpms.
Thanks
