TYM T233 Oil Pressure

[cpan48]

I have a 2008 TYM T233 tractor that we bought used in 2019 from the original owner. I don't remember how many hours were on it when we got it, but it now has only 211 hours on the engine. My issue and what if have done to try an remedy it: The oil pressure light came on back in February. A little history and background. Back in December when the weather was starting to get really cold here in North Idaho we put the tractor in the shop to help with starting it when we needed to use it. All the time we had it we had not changed the oil. We were going to change all the fluids this past spring. Only my Husband passed away the beginning of February and I am trying to figure everything out without him. When I went to move the tractor out of the shop and back outside, the oil pressure light came on and stayed on. I shut it off and got out the owners manual and read that it was overdue for an oil change. I figured out how to do that thanks to Google and reading some tractor forums. What a pain. However, after changing the oil, the light did not go out. More reading of the manual and getting a hold of the dealer that sold the tractor. I changed the oil again and put a different filter on, but that did not make the light go out. I had moved the tractor out of the shop and it had sat in the sun on a very warm day and when I started it again, the light went out. But after sitting for a while and starting again the light comes on again. More research I finally found where the sensor was and replaced that. Light is still on. I have read about hooking up to a manual gauge to see what the pressure was. With the help of my son, I was able to get that done. Unfortunately, the gauge looked like I had low pressure. I want to try a different gauge to see exactly where I'm at pressure wise as the gauge I was using was one I got from work was really not what I should have used. What else can I do, without taking it to a dealer or mechanic and spending a ton of money, to try and figure out what is wrong and fix it? Any solutions or suggestions would be greatly appreciated.

 

[K5lwq]

Sounds like you are doing pretty good as a start. Checking pressure is the next step. A simple kit like the one linked below should be fairly accurate.

Engine Oil Pressure Test Kit

Amazing deals on this Engine Oil Pressure Test Kit at Harbor Freight. Quality tools & low prices.

www.harborfreight.com

 

[Roadworthy]

You're on the right track - getting an indication of the actual oil pressure is the first step. If the pressure really is low it gets messy. It may be a weak bypass spring for oil pressure if you're lucky. It could also be a bad oil pump or broken drive to it. The worst (and least likely) would be worn bearings on the crankshaft. Whatever it is it's not a good idea to run with oil pressure low enough to turn on that light - you can destroy an engine.

 

[cpan48]

I know I'm trying not to run it. I only do after I try something to see if it works. And only for just a little bit. I did get all of the above from the my work, but the gauge goes up too high to give me an accurate reading so I will get a different gauge so I can get a better reading. I just was not sure what else I could do. If the reading comes back normal, why would the light stay on after I put a new sensor in? And how do I go about diagnosing any of the above. I'm not a mechanic so I'm kind of flying blind. I have the owners manual, service manual, and the engine manual, so I do have a way to look some stuff up. I just don't have the knowhow or skill to put everything together.

 

[K5lwq]

What is the range of the gauge you used and what was the pressure reading? Also at what RPM did you test?

 

[cpan48]

What is the range of the gauge you used and what was the pressure reading? Also at what RPM did you test?

The gauge is 0-300 psi, and it was just at an idle. So whatever normal idle RPM is.

 

[K5lwq]

Did the needle come off of zero any?

 

[K5lwq]

The light should come on if pressure is get to around 7psi or lower. The relief is set to open around 50psi. Minimum pressure at idle is around 14psi. At operating speed it should be around 40psi.

Does the light stay on solid or was it flickering?

 

[cpan48]

The light should come on if pressure is get to around 7psi or lower. The relief is set to open around 50psi. Minimum pressure at idle is around 14psi. At operating speed it should be around 40psi.

Does the light stay on solid or was it flickering?

It was solid. Not really sure if the needle moved at all. I bought a new gauge that is 0-100 psi so I will try that and see what happens. Also, if it sat in the hot sunlight and I started it (and to be honest I used it a little bit to move some dirt. I know, I know. BAD!) the light went out. So I am so confused. It's still running and doesn't sound like anything is wrong (again, not a mechanic and my husband would probably kill me if he knew). But really, all it has really done (except for that one time) was just sit and idle.

 

[K5lwq]

Definitely don’t use it anymore until you know the pressures.

With the new gauge record the reading at idle then at around 2000 RPM. Let us know what you find.