is a 110 HP turbo Yanmar
tank, to Racor
500 FG filer with 10 micron cartridge, lift pump
and Yanmar engine fuel filter
. Last week experienced a loss of power, engine would only rev. to 2,000 rpm
. Had this before and was cured by changing the Racor
filter cartridge. Changed the filter and it performed fine for the next hour, then the same problem.
Now changed the engine filter and all seems well in dock
but yet to take it for a run.
The odd aspect is I fitted a pressure gauge to the Racor very recently. I should have noted the normal readings, but didnt, anyway it is now showing well into the red even though the engine appears to be running well with new filters.
What else could cause elivated suction in the Racor, if the filter changes prove not to be the problem?
I can only think of a blockage in the fuel
line or fuel
pick up, although the fuel is good and clean. Would you blow through the fuel line?
Would a failing lift pump
cause this. I assume not, and no reason to think it is failing.
Is it possible the vac gauge could be misreading. It is the tyoe that screws into the top of the Racor brass T handle that you unscrew to change the cannister. If there is air in the Racor can this cause the gauge to mis read?
All ideas gratefully received thank you.