Fuel starvation? Not reaching RPMs under load
Posted: Mon Jun 23, 2014 2:15 pm
Here we go again,
I have two sd33's in the boat. While doing test runs at 2800rpm starboard engine rpms fell to 2200 and would go no higher.
Out of gear engine will rev up without issue. This condition only happens under load. Port engine rpm's fine. I replaced the fuel filters with no effect. I removed the injectors and had them rebuilt at FH injection. Now engine runs great but only goes to 2500rpm.
What next?? I'm hoping that I have a fuel restriction somewhere in the system in the tank or lines. Would it be the inj pump? otherwise the motor runs fine.
What would you do?
Thanks for any input.
Stef
I have two sd33's in the boat. While doing test runs at 2800rpm starboard engine rpms fell to 2200 and would go no higher.
Out of gear engine will rev up without issue. This condition only happens under load. Port engine rpm's fine. I replaced the fuel filters with no effect. I removed the injectors and had them rebuilt at FH injection. Now engine runs great but only goes to 2500rpm.
What next?? I'm hoping that I have a fuel restriction somewhere in the system in the tank or lines. Would it be the inj pump? otherwise the motor runs fine.
What would you do?
Thanks for any input.
Stef