47G losing oil

[GreenDannie]

47 John Deere G, losing crankcase oil but not leaking out. The engine hasn’t run in years.
Any ideas where it is going?

 

[JIM MN]

First thought is a bad right hand main bearing, worn, loose, dumping engine oil into the first reduction gear housing.. Is your transmission oil level over full???

 

[620 John]

Or the oil return hole in the main case for the RH main bearing could be plugged and therefore filling up the first reduction gear cover and transmission. Like Jim said check the transmission oil level.

 

[GreenDannie]

First thought is a bad right hand main bearing, worn, loose, dumping engine oil into the first reduction gear housing.. Is your transmission oil level over full???

I will, how do I access that?

 

[Village Blacksmith]

Both of the above responses are possible, but he says it hasn't run in years!!! The oil would not leak through the bearing, as it does not fill to that level.

 

[GreenDannie]

First thought is a bad right hand main bearing, worn, loose, dumping engine oil into the first reduction gear housing.. Is your transmission oil level over full???

The engine is not running has been started in 20 years.

 

[GreenDannie]

Both of the above responses are possible, but he says it hasn't run in years!!! The oil would not leak through the bearing, as it does not fill to that level.

Any ideas?

 

[JIM MN]

Transmission oil check?? Stand at draw-bar, at bottom , right side of rocker-arm housing, inch wide square plug JD part no.-15H240R, take out, oil should be up to the bottom of threads??

 

[JIM MN]

Are you loosing engine oil with the tractor just sitting there all those years or is it from the tractor running????

 

[GreenDannie]

Are you loosing engine oil with the tractor just sitting there all those years or is it from the tractor running????

It’s not running I drained the oil and put some Diesel fuel in and let it sit for about a week and pulled the plug and nothing, dry..

 

[dan_41jdh]

It’s not running I drained the oil and put some Diesel fuel in and let it sit for about a week and pulled the plug and nothing, dry..

Not trying to be a smart a$$, but are you certain you poured the diesel fuel into the crankcase and not the transmission? I'm reminded of a co-worker at a service station many years ago who complained about the manual transmission of his car was becoming harder to shift. We put his car up on the hoist and discovered his transmission was completely dry. Turned out he mistakenly thought the transmission drain plug was the crankcase drain plug, so he drained the transmission, replaced the plug, and then poured four quarts of oil into the engine- never bothered to check his engine oil level, which was way overfilled, of course....

 

[MSD]

First thought is a bad right hand main bearing, worn, loose, dumping engine oil into the first reduction gear housing.. Is your transmission oil level over full???

No access from the reduction cover to the transmission for the oil to get in there unless there is a hole in the case somewhere.

 

[GreenDannie]

Not trying to be a smart a$$, but are you certain you poured the diesel fuel into the crankcase and not the transmission? I'm reminded of a co-worker at a service station many years ago who complained about the manual transmission of his car was becoming harder to shift. We put his car up on the hoist and discovered his transmission was completely dry. Turned out he mistakenly thought the transmission drain plug was the crankcase drain plug, so he drained the transmission, replaced the plug, and then poured four quarts of oil into the engine- never bothered to check his engine oil level, which was way overfilled, of course....

Yes

 

[GreenDannie]

No access from the reduction cover to the transmission for the oil to get in there unless there is a hole in the case somewhere.

That’s what I’m afraid of maybe a crack in the adjoining wall? I will have to remove the crankcase cover and check

 

[wore out]

Yes

If not the drain plug, then likely one or both of the oil pump gaskets may have let the diesel fuel slowly sneak out and disappear into the ground.