What do I look for/at?

Until today oil pressure would peg the gage on startup and never go below 25 psig at low rpm after warmed up. Now it's stuck at zip, zilch, nada.

1. Oil shows in the top half of the operating range on dipstick.
2. No oil pressure at output from crankcase to gage. (I loosened the fitting to see if anything would come out.)

If it comes to it, is it possible to R&R oil pump with the engine still on tractor? My only book is a service manual which is principally 8N and shows this work as overhaul. What's a good source for other information I may need?

Doug - Alto, NM

Where does one look for such an item?

I'll know more after I inspect Zane's suggestion.

Doug

I would pull the oil pan plug and see if you can move the oil pump pickup tube that is hangine over the drain hole. If you can or if it is out of place the pan will have to be removed to replace the pickup tube. Don't even try to fix it. You will be far better down the road to replace it. The oil pump would not be affected by the tube coming off. They were silver soldered and it is a common problem with the N engine.

You will be way ahead of the game if you will pull the hood and tank off the tractor to begin with and then the front axle and the radiator. The axle is attached to the oil pan by six bolts and nuts and you can roll it out when everything is removed. The radius rods come off at the back end and the tie rods at the front end to make moving the axle easier.

Then the pan can be easily removed and it will be much easier to re install it later.

Looks like all your instructions for oil pan R&R will be put to good use while I go after the pump.