Thepipdoc
Well-Known Member
I have a slight problem which occured whilst crossing the channel to Guersey from Dartmouth yesterday.
Basically, about 12 miles out I lost revs to the starboard engine and when it was running it was extremely intermittent....... maximum revs about 1800 but it would then drop to 500 and then back up to 1800(ish).
Eventually we arrived into Baucette Marina and today I tried to rectify the problem by changing the Racor filter.
I took out the old filter and whilst it was a bit black and there was a small amount of murkiness to the diesel that I drained from the housing, it didn't strike me as being the cause of the problem ( but to be honest I have no real idea what I'm looking for!).
Anyway, prior to draining the filter I switched the isolation valves so that the fuel supply was diverted to the port engine ( and it's the starboard engine I'm having the problem with), I then drained the entire contents of the Racor housing into a bowl and then I removed the lid from the housing to remove the filter. ( I hope you are following this!!!) Having changed the filter, I popped the lid back on the housing and then once all was sealed tight, I returned the isolation valves to the "normal" position. I fully expected the Racor housing to start filling with diesel but it didn't!
The question is- is the Racor filter gravity fed or is it "pulled" through by the engine?
I have done the obvious and checked I have fuel in the tank and I have at least a couple of hundred litres and I've taken the feed pipe from the tank to the valve and I can blow down the pipe and can hear bubbles from the tank. If I suck lots and lots, I get diesel eventually flowing from the feed pipe ( and into my mouth!!). So this suggest to me that it isn't gravity fed and I need to crank the engine to get the engine to "pull" the fuel through.
I don't want to do that if I'm going to be introducing lots of air to the system. which I inevitable will.
Should I manually pour diesel in to the Racor housing and once it's brim full, put the lid on the housing and then crank the engine?
Will I then need to bleed the system at the fine filters and then again a the injectors?
Help! Please
Basically, about 12 miles out I lost revs to the starboard engine and when it was running it was extremely intermittent....... maximum revs about 1800 but it would then drop to 500 and then back up to 1800(ish).
Eventually we arrived into Baucette Marina and today I tried to rectify the problem by changing the Racor filter.
I took out the old filter and whilst it was a bit black and there was a small amount of murkiness to the diesel that I drained from the housing, it didn't strike me as being the cause of the problem ( but to be honest I have no real idea what I'm looking for!).
Anyway, prior to draining the filter I switched the isolation valves so that the fuel supply was diverted to the port engine ( and it's the starboard engine I'm having the problem with), I then drained the entire contents of the Racor housing into a bowl and then I removed the lid from the housing to remove the filter. ( I hope you are following this!!!) Having changed the filter, I popped the lid back on the housing and then once all was sealed tight, I returned the isolation valves to the "normal" position. I fully expected the Racor housing to start filling with diesel but it didn't!
The question is- is the Racor filter gravity fed or is it "pulled" through by the engine?
I have done the obvious and checked I have fuel in the tank and I have at least a couple of hundred litres and I've taken the feed pipe from the tank to the valve and I can blow down the pipe and can hear bubbles from the tank. If I suck lots and lots, I get diesel eventually flowing from the feed pipe ( and into my mouth!!). So this suggest to me that it isn't gravity fed and I need to crank the engine to get the engine to "pull" the fuel through.
I don't want to do that if I'm going to be introducing lots of air to the system. which I inevitable will.
Should I manually pour diesel in to the Racor housing and once it's brim full, put the lid on the housing and then crank the engine?
Will I then need to bleed the system at the fine filters and then again a the injectors?
Help! Please
