| Author |
Message |
Peter E (Sdibaja) (200.76.240.28)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, October 04, 2003 - 11:02 am: | |
I have been having an intermittent problem with fuel draining back into the tank. When I make a cold start sometimes the engine will die after about 45 seconds. The primary filter will then be anywhere from 2” to 5” down from the top… I top it off and it starts after a bit of cranking. This has happened off and on for several months.
I do not think it is a fuel line air leak, the filter is full or only down ½” when I stop after a ½ hour run.
Yesterday morning I pulled the check valve on the bulkhead and discovered that one of the body washers was not sealing well so I replaced it. In the evening I went to mover the bus and the same problem was back. This morning I went out to warm up for a trip and it happened again.
One thing I noted… there is a 45 degree fitting on the bulkhead so the check valve sits at an angle. With “top” up the flap in the valve could hang open against the spring… possible?
Yes, I pressure tested the tank and lines… about 15 pounds of air for 10 minutes. No detectable leaks, but air is a lot smaller than diesel. A better way to do this?
Thanks, Peter E |
Peter E (Sdibaja) (64.165.10.27)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, October 05, 2003 - 12:26 pm: | |
OK, I ran a test running up a long grade. There was a small amount of air in the primary, about 1". the manual says that indicates an air leak.
any ideas about how to find such a small leak?
any knowledge of any fittings in the tunnel?
Thanks, Peter E |
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