Today's Message Index:
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1. 08:41 PM - Off-topic Volvo diesels (Gary Casey)
2. 09:31 PM - Re: Off-topic Volvo diesels (Mid-State Sandblasting)
Message 1
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| Subject: | Off-topic Volvo diesels |
--> Engines-List message posted by: "Gary Casey" <glcasey@adelphia.net>
Sorry about posting this here, but I am at wits end on this engine and
perhaps someone has the expertise or knows where to go.
The engine is a 2-cylinder diesel used in my son's sailboat, which is about
20 years old. It has had gradually worsening starting and running issues
for a couple of years, looking a lot like air entrainment in the fuel. the
compression was also down so I did a "top overhaul", changing the valves and
cleaning the injectors. We also took the opportunity to change all the
rubber hoses and banjo seals in the fuel system. The engine starts better,
probably because of the fresh injectors and higher compression, but the
symptom is still there. Occasionally it will start and run perfectly for at
least an hour, at which time the rpm will start to surge. Other times it
won't idle, but usually can be temporarily fixed by manually purging the air
from the system - and there is usually a lot. The local Volvo marine diesel
"expert" claimed he found some air leaks and fixed them - no improvement,
except when he was test-running the engine. We've gone through just about
everything except the injection pumps and the Racor filter (which is mounted
below fuel level).
Is there anyone out there that really knows these fuel systems?
Gary Casey
Message 2
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| Subject: | Re: Off-topic Volvo diesels |
--> Engines-List message posted by: "Mid-State Sandblasting" <plane@rtmc.net>
sounds like that racor filter could be dirty try by passing complete fuel
system hook a fuel line from a small tank or can to the fuel pump, this
will help eliminate part of the fuel system. my money is still on that
filter. good luck
----- Original Message -----
From: "Gary Casey" <glcasey@adelphia.net>
Subject: Engines-List: Off-topic Volvo diesels
> --> Engines-List message posted by: "Gary Casey" <glcasey@adelphia.net>
>
> Sorry about posting this here, but I am at wits end on this engine and
> perhaps someone has the expertise or knows where to go.
>
> The engine is a 2-cylinder diesel used in my son's sailboat, which is
about
> 20 years old. It has had gradually worsening starting and running issues
> for a couple of years, looking a lot like air entrainment in the fuel.
the
> compression was also down so I did a "top overhaul", changing the valves
and
> cleaning the injectors. We also took the opportunity to change all the
> rubber hoses and banjo seals in the fuel system. The engine starts
better,
> probably because of the fresh injectors and higher compression, but the
> symptom is still there. Occasionally it will start and run perfectly for
at
> least an hour, at which time the rpm will start to surge. Other times it
> won't idle, but usually can be temporarily fixed by manually purging the
air
> from the system - and there is usually a lot. The local Volvo marine
diesel
> "expert" claimed he found some air leaks and fixed them - no improvement,
> except when he was test-running the engine. We've gone through just about
> everything except the injection pumps and the Racor filter (which is
mounted
> below fuel level).
>
> Is there anyone out there that really knows these fuel systems?
>
> Gary Casey
>
>
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