2470 fuel leakoff

[bill thurman]

I have a 2470 that if it sets for a couple of days the fuel will leak off and it won"t start till you pump it back up, will the poppets in the fuel pump cause this, where do I need to look, Thanks

 

[Anonymous-0]

the hand primer pump on the injection pump has nylon disks in it that act as a check valve and will allow bleedback, over 10 years ago I dealt with the same problem on a 4490.

 

[dwag]

Along with faulty primer, especially the newer "umbrella type", the brass return line tee at top,side,front of pump could have a leaking check valve, which is what I find most often. Tee is very $$$$ thru Caseih. Have gotten replacements from salvage and Spencer Diesel in Iowa.