Bob said: (quoted from post at 14:40:10 05/18/15) EXACTLY. Simply disconnecting the return line from the fitting/check valve doesn't prove a thing.[/quote:488803f03e]
I believe the check valve on this tractor is upstream and mounted to the engine block. I went ahead and removed the fitting from the pump and it was clear and did not contain any type of spring or ball. I took some pictures, but I don't believe I can attach pictures to my posts on this forum.
[quote:488803f03e="bison"](quoted from post at 15:34:32 05/18/15) That sounds to me a worn rotor. I would take the timing cover of the pump and look if the timing mark turns around when you turn the engine over.
If it doesn't then the pump drive shaft is broken,.usually because the rotor seized in the head. A worn rotor and bore are often scored, a drop of water in there causes rust after sitting a couple months he rotor is seized and the next start might just break the shaft.
I removed the timing cover this afternoon and turned the motor over. The timing mark on the bottom of the pump does in fact turn & some fuel came out of the window as the engine cranked.
This post was edited by 78kitty at 19:36:58 05/19/15.
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