Brand New CK4020 Excessive Oil Consumption, No Smoke, No Leaks

[Spanner]

Looking forward to a resolution.
Wishing you a full recovery from your fall.

 

[oldnslo]

That is one of my concerns. Some experienced tractor mechanics on this forum may know the relationship between the hydraulic pump and the engine oil but it is not clear to me. One of the service people I talked to said there is a seal, if broken, that can allow the migration of engine oil into the hydraulic oil reservoir.

The more I think about it, as quickly as the engine oil was disappearing with no leaks it seems logical that engine oil was moving into the hydraulic system. If the tractor was burning engine oil I don't believe the engine would have burned over a gallon of oil in 20 minutes of running at low RPM.

I have read about shaft seal leaking on a pump allowing hydraulic oil into the engine but don’t think have ever heard of engine oil going into hydraulic reservoir via the pump.

It might be possible if shaft seal is submerged in engine oil and shaft seal area is connected to pump inlet and inlet was under vacuum pulling oil from engine to hydraulics.

 

[ncridgerunner1]

I have read about shaft seal leaking on a pump allowing hydraulic oil into the engine but don’t think have ever heard of engine oil going into hydraulic reservoir via the pump.

It might be possible if shaft seal is submerged in engine oil and shaft seal area is connected to pump inlet and inlet was under vacuum pulling oil from engine to hydraulics.

Sounds like a possible scenario. I hobbled up to the shop checked the oil, started the engine up, and let it idle for about 30 minutes. Everything sounded good and the oil level didn't change after shut down.

My wife thinks I'm crazy but I feel better standing up rather than sitting. If nothing else it made me feel better just doing something however small.

 

[anomad]

Sounds like a possible scenario. I hobbled up to the shop checked the oil, started the engine up, and let it idle for about 30 minutes. Everything sounded good and the oil level didn't change after shut down.

My wife thinks I'm crazy but I feel better standing up rather than sitting. If nothing else it made me feel better just doing something however small.

I've broken a rib, two times, both bicycle crashes. I can attest to feeling less uncomfortable wheezing around doing something rather than trying to set. Never broke multiple at once though.

 

[RayIN]

I have read about shaft seal leaking on a pump allowing hydraulic oil into the engine but don’t think have ever heard of engine oil going into hydraulic reservoir via the pump.

It might be possible if shaft seal is submerged in engine oil and shaft seal area is connected to pump inlet and inlet was under vacuum pulling oil from engine to hydraulics.

I agree. Engine oil is pressurized unless in the pan, OTOH hyd oil is only pressurized leaving the pump.
FWIW, I think it's common practice to fill the hyd oil to the add mark with new stuff.

 

[Midniteoyl]

Sounds like a possible scenario. I hobbled up to the shop checked the oil, started the engine up, and let it idle for about 30 minutes. Everything sounded good and the oil level didn't change after shut down.

My wife thinks I'm crazy but I feel better standing up rather than sitting. If nothing else it made me feel better just doing something however small.

Glad you are able to move around.

Sitting puts pressure on your diaphragm and thus your lungs and ribs. Moving also helps reduce scaring as things heal..

 

[JimR]

Sounds like a possible scenario. I hobbled up to the shop checked the oil, started the engine up, and let it idle for about 30 minutes. Everything sounded good and the oil level didn't change after shut down.

My wife thinks I'm crazy but I feel better standing up rather than sitting. If nothing else it made me feel better just doing something however small.

Keep moving, your body will love you for it and your recovery time should take less time. A lazy body takes a lot more time to fully recover. Plus there is always the chance for Pneumonia from sitting idle too much.

 

[ncridgerunner1]

Keep moving, your body will love you for it and your recovery time should take less time. A lazy body takes a lot more time to fully recover. Plus there is always the chance for Pneumonia from sitting idle too much.

I can't lie down on a bed or tie my shoes but I can walk. Got about a mile and a half in this afternoon. Hope to increase that tomorrow.

 

[HamishMacCheap]

Best wishes for a speedy and complete recovery.

Back in 1997, I fell off of a ladder going onto a roof and broke ribs. It was far too painful to get up and down onto a bed and for a month or more, I slept in a LazyBoy recliner.

You will heal, however, so keep good thoughts as you heal.

 

[TMGT]

Ouch, I fell of a walkboard 7 years ago, landed on my chest and broke my right wrist and a couple ribs. The ribs hurt worse than the wrist!

Sent from my SM-S921U using TractorByNet mobile app

 

[TractorTYMe]

Get a long shoehorn and moccasin type slip on shoes for the time being.

 

[ncridgerunner1]

Received the information about what work was done on my tractor:
Hydraulic Pump, Gear
Several O-Rings
Oil Pressure Filter
HST Filter
Hydraulic Fluid

I'm not sure where the hydraulic pump is located on this tractor but the dealer only listed 1 job hour for pump so I'm sure it is not an internal component.

I hope this completely corrects the issues. I'm anxious to work the tractor some to check everything out.

 

[Midniteoyl]

Pretty sure it's a bolt on. Hard to find, and if you do find one, it's $1500..

PUMP, GEAR - TC24-0019A

mowpart.com

 

[ptsg]

They could just replace the $15 or $20 shaft seal, instead of changing the entire pump, but I guess it's under warranty so it's probably better that way.

 

[ncridgerunner1]

They could just replace the $15 or $20 shaft seal, instead of changing the entire pump, but I guess it's under warranty so it's probably better that way.

When they picked up my machine the service guy said the pump was making a lot more whining noise than it should. I have no idea if that was caused by the seal or the pump but like you I'm glad they changed the whole assembly.

 

[Midniteoyl]

They could just replace the $15 or $20 shaft seal, instead of changing the entire pump, but I guess it's under warranty so it's probably better that way.

Seals probably went out due to another defect in the pump/shaft. Better to just replace it.

 

[ptsg]

When they picked up my machine the service guy said the pump was making a lot more whining noise than it should. I have no idea if that was caused by the seal or the pump but like you I'm glad they changed the whole assembly.

It probably pulling air mixed with engine oil from the shaft seal being bad. This causes cavitation and makes that whining noise.

 

[ptsg]

Seals probably went out due to another defect in the pump/shaft. Better to just replace it.

Possibly, but I'm leaning more towards that the seal may have got damaged during assembly of the pump, considering it happened at very low hours.

Where I was going with this, is that if the tractor was out of warranty, I bet they would charge the costumer a brand new $1500+ pump when a $15 high pressure seal would fix it.

Like I said before, being under warranty, just replace it entirely, which was done.

 

[JimR]

I can't lie down on a bed or tie my shoes but I can walk. Got about a mile and a half in this afternoon. Hope to increase that tomorrow.

A little bit more at a time and you will be like new in no time at all. I have had 12 surgeries so far.

 

[JimR]

Received the information about what work was done on my tractor:
Hydraulic Pump, Gear
Several O-Rings
Oil Pressure Filter
HST Filter
Hydraulic Fluid

I'm not sure where the hydraulic pump is located on this tractor but the dealer only listed 1 job hour for pump so I'm sure it is not an internal component.

I hope this completely corrects the issues. I'm anxious to work the tractor some to check everything out.

The best part is that your tractor is fixed now. Hopefully it stays that way.