golfcartman
Member
My "35 A don"t show any oil pressure by the gauge which is the stem that pops up. It"s not moving at all. I need help on how to check the pressure and or fix the problem. Any suggestions would be appreciated.
- Thread starter golfcartman
- Start date
Fixing this problem can be challenging. First thing I"d check is oil level. Make sure those oil pump gears on left side of crankcase are submerged as it may have lost its prime. If your oil pump gears are worn that can make it hard to get pressure as well. I bought my oil pump gears from Detwilers 4 years ago for $100 a set. Make sure oil suction pipe from bottom screen to oil pump isn"t cracked. (This pipe runs horizontally) Also, make sure your oil filter canister isn"t cracked or smashed from over tightening the filter nut, or has small pin holes. Mine had small pin holes nearest the casting wall from mouse urine. If its smashed from over tightening then the canister has to be removed & straightened. I"m assuming your tractor had been recently running? If so, get the oil level to flywheel side by jacking right side of tractor to submerge the oil pump gears for starters or add 2 or 3 quarts of oil. Some guys park them with right wheel higher for this reason. The oil pressure stick should raise while you hand crank the motor.
RogerinMinn
Member
I am having the same problem on my '35 A. It has new oil pump gears from Detwiler's and when I started it like the third time after rebuild it didn't have oil pressure. I pulled the relief valve and it had some silicon in it from when I put new gaskets in the oil pump. I cleaned it out and the oil pressure was fine. I had it out pulling a plow some this fall and everything worked fine, then on Thanksgiving I started it up and no oil pressure again. I am going to pull the relief valve again this weekend and I'm hoping it just has some more crud in it.
Anonymous-0
Well-known Member
Something you might try, I had the same problem on my dad's 34 A. I greased the side gears and changed the oil mixing in a quart of Lucas oil stabilizer with the oil before putting the oil in the tractor. and it hasn't lost prime since. I do this every oil change.
golfcartman
Member
Well here is the story of no oil pressure.I was sure the previous owner said he had just changed the oil and the oil looked good at the check oil valve when I checked each time. I've had the tractor about a year. I drain the oil( mostly sludge) looks like tar and pull the filter cap off to find no filter. The filter area was also full of sludge( go ahead and call me dumb asxxx at any point. I now have the crankcase filled with Kerosene for the night and will drain in the a m. What do you'll suggest to do next.thanks D A
G-man, All of this is good advice. If the pump housing is worn some you might leave the gasket off the cover and just use sealer. Do check the top of the filter canister for distortion at the top from being over tightened. I straightened mine in place with shaped block of wood inside and a hammer. If all looks good, tow it around the yard a few laps. Good luck, VH
As Vern said, everything stated so far is good advice. Sounds like it might be mostly the sludge that is the culprit, and with it possibly more neglected things. You might want to pull the crankcase cover and check out all the internals, given what you are finding.
One more thing I would add is that you may have an oil pressure test port just below the "red head" oil stick. Basically "any" oil pressure is "good" oil pressure. 5 PSI and up???
Here is a pic I just took of a late 35 governor for reference. The 1/4" pipe plug is where you can install a gauge, when you retest.
One more thing I would add is that you may have an oil pressure test port just below the "red head" oil stick. Basically "any" oil pressure is "good" oil pressure. 5 PSI and up???
Here is a pic I just took of a late 35 governor for reference. The 1/4" pipe plug is where you can install a gauge, when you retest.
Hi A Guru,
Thanks for posting the pic. It jogged my memory enough to go look at my old rag of a 35A. When I bought it someone had brazed a nut below the plug, brazed the pop-up rod at the top, drilled through the casting at the nut, and installed a gauge. It was ugly! I cleaned it up back to original. Luckily all the parts were still there. Behind the existing plug is a hole that drains any oil that leaks past the pop-up shoulder/seat back into into the governor housing. There is never any pump pressure to the plug so it isn t a spot for a gauge. When the pop-up comes up I think to myself, good, I have some oil pressure! Please keep up the very informative posts. Happy holidays all. VH
Thanks for posting the pic. It jogged my memory enough to go look at my old rag of a 35A. When I bought it someone had brazed a nut below the plug, brazed the pop-up rod at the top, drilled through the casting at the nut, and installed a gauge. It was ugly! I cleaned it up back to original. Luckily all the parts were still there. Behind the existing plug is a hole that drains any oil that leaks past the pop-up shoulder/seat back into into the governor housing. There is never any pump pressure to the plug so it isn t a spot for a gauge. When the pop-up comes up I think to myself, good, I have some oil pressure! Please keep up the very informative posts. Happy holidays all. VH
My mistake. I just assumed it would show the pressure. I knew it led to the gov bearing but thought it would still register something. I didn't have an open one to look at.
As you said, the pop up is a plenty good enough indicator, if it functions. Practically any oil pressure at all is enough oil pressure.
As you said, the pop up is a plenty good enough indicator, if it functions. Practically any oil pressure at all is enough oil pressure.
A Guru,
An after thought.
That plug opening would certainly make a swell spot for a gauge if the pop-up innards were removed, and the top and the relief holes were plugged. I m with you on using the pop-up. I don t think it is as important to know how much pressure you have as just knowing you have some.
Best regards, VH
An after thought.
That plug opening would certainly make a swell spot for a gauge if the pop-up innards were removed, and the top and the relief holes were plugged. I m with you on using the pop-up. I don t think it is as important to know how much pressure you have as just knowing you have some.
Best regards, VH
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