190 XT oil pump

jlackman

New User
I'm working to resurrect a 190XT. It had no oil pressure, tested with gauge directly into block.

Dropped pan, got oil pump removed. Now I'm trying to figure out where I can get a rebuilt oil pump, or if there is anyone who can rebuild the one I have. Any help appreciated.
 
(quoted from post at 06:53:09 05/23/22) I'm working to resurrect a 190XT. It had no oil pressure, tested with gauge directly into block.

Dropped pan, got oil pump removed. Now I'm trying to figure out where I can get a rebuilt oil pump, or if there is anyone who can rebuild the one I have. Any help appreciated.

What is the "backstory"... how long did the tractor sit without being started?

Was loss of oil pressure the reason it was parked?

Did you try priming the oiling system?

Why are you assuming the oilpump needs rebuilding, have you looked inside it?

To pump NO oil it would have to be worn VERY badly or the gears would have to be broken or the driveshaft no longer connected to the driven gear.

If truly badly worn you'll be looking for another pump, NOT a "rebuild".

And if that is the case, what do you expect the bearings look like, and add the fact it was run with no oil pressure.
 
(quoted from post at 09:59:43 05/23/22)
(quoted from post at 06:53:09 05/23/22) I'm working to resurrect a 190XT. It had no oil pressure, tested with gauge directly into block.

Dropped pan, got oil pump removed. Now I'm trying to figure out where I can get a rebuilt oil pump, or if there is anyone who can rebuild the one I have. Any help appreciated.

What is the "backstory"... how long did the tractor sit without being started?

Was loss of oil pressure the reason it was parked?

Did you try priming the oiling system?

Why are you assuming the oilpump needs rebuilding, have you looked inside it?

To pump NO oil it would have to be worn VERY badly or the gears would have to be broken or the driveshaft no longer connected to the driven gear.

If truly badly worn you'll be looking for another pump, NOT a "rebuild".

And if that is the case, what do you expect the bearings look like, and add the fact it was run with no oil pressure.

backstory unfortunately is a lot of unknowns. tractor had been parked probably a couple of years. owner got it running for a few weeks but it was not running right. after a month then it wouldn't start. When I first saw it, it would crank and spin fine. He kept talking about oil pressure and said he had changed oil because he thought something was wrong. So I put a gauge on the block, registered zero when it ran for 30 seconds or so. I told him my position was I wouldn't run it if I couldn't prove it had oil pressure. Dropped pan, nothing really bad in there but he had just changed oil a week before anyhow. The rest of the questions are all great questions but unknown. I have the oil pump out, and visually it looks normal, so I'm puzzled about why it had no oil pressure. Bearings; haven't got there yet.

This post was edited by jlackman on 05/23/2022 at 04:24 pm.
 
I've worked on those particular engines since 1975. I have NEVER had an oil pump failure or had to replace one. I think you're barking up the wrong tree. Good luck.
 
(quoted from post at 16:52:32 05/23/22) I've worked on those particular engines since 1975. I have NEVER had an oil pump failure or had to replace one. I think you're barking up the wrong tree. Good luck.
******** Also, the camshaft bearings are NOT pressure lubed. They work off of what comes back down from the rocker arms. You're looking at main and rod bearing clearances for leakage, not cam bearings.
 
(quoted from post at 17:58:48 05/23/22)
(quoted from post at 16:52:32 05/23/22) I've worked on those particular engines since 1975. I have NEVER had an oil pump failure or had to replace one. I think you're barking up the wrong tree. Good luck.
******** Also, the camshaft bearings are NOT pressure lubed. They work off of what comes back down from the rocker arms. You're looking at main and rod bearing clearances for leakage, not cam bearings.

That's entirely possible @DRallis. When I started this journey I knew nothing about these tractors. Now that I have the pump out of it, it's hard for me to see anything wrong with it. Not sure what's next though; plastigauge the crank?

I keep going back to the original testing; it was making zero oil pressure at the gauge on the block. Even when putting a gauge copper line on the block, only a dribble of oil came out.

I've also read about the oil filter stand pipe on the 45s that if missing would lower oil pressure but I don't know if the 190 had this stand pipe; guess I can't post a link?
 
You are like a Lawyer trying to defend someone without knowing the WHOLE TRUTHFUL STORY about this engine. There is actually a scenario where if someone swapped a 180-185-190 engine block with a 190XT engine block, that there could be zero oil pressure because of the way the oil passages are assembled for an engine without an oil cooler versus with an oil cooler. But, at this point, you don't know that either. I'd run away fast. *** Even if the main and rod bearings were worn badly, it would still have SOME oil pressure when cold. In fact it might be pretty good oil pressure until it warmed up. But, to have zero oil pressure ?? something smells here.

This post was edited by DrAllis on 05/23/2022 at 06:48 pm.
 

Thanks for the thoughtful encouragement and warm welcome, comparing me to an attorney and all.

If I only bought vehicles where I know the "WHOLE TRUTHFUL STORY" I would never have a vehicle.
 

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