B high oil pressure (long winded story)

For the past six months I've been working on a 47 B that came from a grove and into my shop. So far I've had a wrench on everything ahead of the steering wheel, and I mean everything!

To start the story the oil filter stud was broken away from the top of the filter housing. I replaced the housing and discovered the stud was bent, I had to straighten it so the filter cap was centered. How that happened, I don't know. The block was bored, the babbit was bad in the rods so I had the rods machined for replaceable inserts. The machine shop did a perfect job on the rods and they plastigaged perfect tolerance, I forget what it was but it was right on. The crank throws are not egg shaped. I got it back together and belted it to another tractor since the starter is lazy. When it spun over the oil pressure gauge pegged way over so hard I had to tap on the gauge to get the needle to return after I quit spinning the engine and it was spinning at an idle speed, no faster. Oil is 10-30 break in from Deere and the temp was 65 in the shop. Then I noticed a small stream of oil running out from underneath the belly and discovered the oil pump gasket had blown. I put a pan under the leak and started the tractor, running it at an idle with this medium sized stream coming out from around the oil pump plate. I noticed the oil pressure screw was screwed in pretty far so I backed it out a long ways and got the pressure down to the M on the gauge at idle but if I revved it the pressure almost pegged again. Then I shut it down and ordered a new oil pump gasket from Deere. I now have the new gasket and the pump is back together. The old gasket was barely catching on one side of the plate before blew so it was about ready to go anyway.

Now I am waiting for new brushes to come for the starter before I run it again.

The question I have, after this long story, is there any other reason for extra high oil pressure in a B besides the oil pressure relief being cranked up too tight?

Like I said, the oil pressure did come down some after I cranked out the screw a long ways but the pump was also leaking and losing a certain amount of pressure that way. I don't want to start it back up until I'm darned sure the pressure is under control. I have not yet removed the oil pressure regulator body from the side of the tractor yet to check it out. Another thing that just came to mind, and I'm second guessing myself here, but I had the governor off and made a new gasket. I'm pretty sure I made an oil pressure hole in the gasket.

It's been a while since I was in a b, does
the rod have oil holes for the rods? Any
chance with inserts they were blocked?

That's a good suggestion. I do plead ignorance on this. The machinist has done a bunch of these and I trusted him to do the job right. When I got the rods back the inserts were already installed an I didn't pay attention to them.

I had the same thing on a BR. I wanted to check the oil pressure to be sure it was ok. To my surprise when I installed my Snap-On oil pressure gauge it read about 100 PSI. I backed the screw way out to about 12 psi and it has held that ever since. I think some people adjust oil pressure to the gauge which more than likely is inaccurate. On the flip side most people don"t believe that the tractor only needs about 12 psi of oil pressure- and crank them way up.