How do you tell if the oil pump is bad?? I changed the oil in my 8n and now I have no oil psi. I took it all apart and found nothing wrong. You told me about the primer but I still get nothing. I used 10/40 syndic blend. is that my problem? I have never had to prim this tractor before and it ran great last year before I parked it. I really don't have time for this tractor to be down.
- Thread starter Hunterjcw
- Start date
Bruce (VA)
Well-known Member
(quoted from post at 05:22:55 05/27/15)f you were nice & tidy & didn't dump oil all over the engine, then you probably didn't really prime it. How much volume did you actually get into the engine? Hose & bottle or squirt can? Look how far you have to go to reach the pump:
Ok I recon I'll have to do some Mcgivering I was thinking of filling the system up I just have to figure how. I used a funnel and got a few ounces in.
TheOldHokie
Well-known Member
- Location
- Myersville, MD
Just enough to fill the oil pump. It doesn't need to be any heavier than your regular oil. If it won't prime on regular engine oil it is flat worn out or you have a vacuum leak in the pickup.
TOH
I had this question and JMOR suggested:
"A "squirt" isn't enough. Look at the path from the relief past the valve seat, down & through the oil gallery, on down through the block, through oil pump passages to the pump gears. You may make a mess, but use a squeeze bottle & hose & try for 5 ounces.
A squirt probably never made it out of the spring/plunger cavity."
I didn't get mine pri,ed the first time with an oilcan and used this (outboard motor lower unit) hand pump with 90w to prime the second time. Plastic nipple fits orifice perfect and no mess.
"A "squirt" isn't enough. Look at the path from the relief past the valve seat, down & through the oil gallery, on down through the block, through oil pump passages to the pump gears. You may make a mess, but use a squeeze bottle & hose & try for 5 ounces.
A squirt probably never made it out of the spring/plunger cavity."
I didn't get mine pri,ed the first time with an oilcan and used this (outboard motor lower unit) hand pump with 90w to prime the second time. Plastic nipple fits orifice perfect and no mess.
mhb@ufe
Well-known Member
- Location
- Jefferson Maine
Thanks for posting what you found as I have been watching your post below to see what you found.
Mark
Mark
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