Destroked 450
Well-known Member
- Location
- Harned, Ky
That’s the vent tube that also acts as a over flow
That style injection pump has its own oil sump and it’s oil should be changed every time the engine oil is changed
If you have fuel dripping out that tube you have fuel in the pumps oil sump, this can be caused by a bad diaphragm in the lift pump of internal leakage
I’d change the oil in the pump and if it drips fuel and or oil out that small tube again I’d replace the lift pump
Changing out the lift pump will drain most of the oil from the inj pumps sump, make sure to refill its sump before using the tractor
That style injection pump has its own oil sump and it’s oil should be changed every time the engine oil is changed
If you have fuel dripping out that tube you have fuel in the pumps oil sump, this can be caused by a bad diaphragm in the lift pump of internal leakage
I’d change the oil in the pump and if it drips fuel and or oil out that small tube again I’d replace the lift pump
Changing out the lift pump will drain most of the oil from the inj pumps sump, make sure to refill its sump before using the tractor
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