Just another Moderator
Join Date: Sep 2005
Location: New Westminster, BC
Thanked 448 Times in 425 Posts
Rep Power: 10
Re: Clogged fuel filter?
Sounds like you had the warning.... the reduced rpm was it.
A totally plugged filter would prevent you running at all, but for a smallish engine you may get idle demand fuel through it.. Your symptoms sound also like possible air entrainment.. check all your bleeders and vents in case something's vibrated loose - fittings/connections too.
Change the filter, obviously, fully bleed the system and you should be able to 'test' it at the dock - tie the boat up securely and try it in gear too..
I have 'polished' our fuel - we had some sediment in the tank, I removed it all with a suction oil changing pump/cannister, poured it into jerry cans, mucked out the tank as best we could, then ran the fuel between jerry cans (J cloth in a funnel for the first phase) then through various filter screens before screening it once again going back into the tank. Not a true polish job but we've had no issues since.
btw I put all my fuel through a screened funnel to catch the gross stuff before it can go into the tank.
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)