NomadBill
Member
- Joined
- Feb 23, 2020
- Messages
- 9
- Location
- Vancouver, Canada
- Vessel Name
- Nomad
- Vessel Make
- 47' Marine Trader Tradewinds
Having just repaired/lined fuel tanks and changed raw water pump I decided to test for leaks and any other issues. Started engine but it needed almost 1/2 throttle to stay running at Idle speed only. Won't go above idle, even at full throttle.
This engine had started and run normally several times including the previous morning and at normal RPM. it's been run 4-5 times for 5 min or more since tanks were worked on...no issues until now.
So I did this:
Checked Linkages and throttle movement. good
Checked all fuel lines and valves for kinks and proper open setting. good
Replaced Air filter and both Fuel filters including screen in pump. dirty but not plugged
Bled air at engine mounted Fuel filter. Found some air bubbles
Bled each injector line until spitting. Thought this would fix it, but didn't
Bled injectors while idling with throttle wide open! No impact.
Engine WILL aways start with throttle open 1/2 way but not run above an idle.
Panel Temp and Battery lights Stay on when engine idling, oil pressure light goes out.
Question is this: Are there limp home or protection mode safety system on these Old Diesel Volvos? This seems to be acting like it's being prevented from running at higher revs. Or is this likely just an air in the fuel line issue so I should keep bleeding?
I'm stumped!!!
Any suggestions or insight would be greatly appreciated
Thanks,
Bill
m/v Nomad
47´ Marine Trader
This engine had started and run normally several times including the previous morning and at normal RPM. it's been run 4-5 times for 5 min or more since tanks were worked on...no issues until now.
So I did this:
Checked Linkages and throttle movement. good
Checked all fuel lines and valves for kinks and proper open setting. good
Replaced Air filter and both Fuel filters including screen in pump. dirty but not plugged
Bled air at engine mounted Fuel filter. Found some air bubbles
Bled each injector line until spitting. Thought this would fix it, but didn't
Bled injectors while idling with throttle wide open! No impact.
Engine WILL aways start with throttle open 1/2 way but not run above an idle.
Panel Temp and Battery lights Stay on when engine idling, oil pressure light goes out.
Question is this: Are there limp home or protection mode safety system on these Old Diesel Volvos? This seems to be acting like it's being prevented from running at higher revs. Or is this likely just an air in the fuel line issue so I should keep bleeding?
I'm stumped!!!
Any suggestions or insight would be greatly appreciated
Thanks,
Bill
m/v Nomad
47´ Marine Trader