1
Main Message Board / changing fuel filter
« on: August 12, 2020, 09:08:41 PM »
Changed racor fuel filter today, I've changed it several time over the last 15 years, the tank was full of fuel, I have a valve installed just before the racor filter, with the filter off, I opened the valve just to run a little fuel out, (rinse) but no fuel came out, I thought that was odd because of siphoning, I put the filter on and bled and ran the engine, in the past I would leave the knurled knob open a 1/4 turn or so to self bleed the system, engine started right up, ran it for half hour or so, however, when I shut the engine off, it wouldn't start again unless I shut the knurled bleed screw knob tight,
had to leave the boat until friday, in the meantime, thought I would ask you guys for advice before I get back and trouble shoot,why wouldn't the tank siphon, and why can't I leave the bleed screw partially open like before, the pick up tube has the screen removed, . I can rev the engine to 3200 rpm no problem. I have spent the last hour reading the archives.
It's got me confused, almost like the fuel line has a airleak, or something breaking the siphon. but why the bleeder screw can't be cracked open a little like it used to be, like Ron says, (self bleeding) I did notice Stu's report on the racor check valve I could look at when I get back, I did notice a little trouble starting the engine, hence the filter change, now it fires up instantly, as long as the knurled knob is tight??
had to leave the boat until friday, in the meantime, thought I would ask you guys for advice before I get back and trouble shoot,why wouldn't the tank siphon, and why can't I leave the bleed screw partially open like before, the pick up tube has the screen removed, . I can rev the engine to 3200 rpm no problem. I have spent the last hour reading the archives.
It's got me confused, almost like the fuel line has a airleak, or something breaking the siphon. but why the bleeder screw can't be cracked open a little like it used to be, like Ron says, (self bleeding) I did notice Stu's report on the racor check valve I could look at when I get back, I did notice a little trouble starting the engine, hence the filter change, now it fires up instantly, as long as the knurled knob is tight??