Oil & Fuel Tc-35 Major oil blow/blow by out problem, from soft over flow tube on top of engine.

[Parfleche]

I have a major problem. Was working today with my tc-35 and there is a drain tube that comes from the top of the engine on the right side, it is black vinyl, about 1" in diameter, it originates below the air cleaner, then drops down past the oil dip stick and fuel filter and is just open to the ground. What is it? It looks like a cross between engine oil and hydraulic oil. Need to know what is happening. I need this thing for the winter! Any info would be much appreciated! The tractor is not a hydro-static model. Much thanks in advance.

Kind Regards,
Steve

 

[Btown]

Is there oil coming out this hose or smoke coming out?

 

[Parfleche]

Thank you for your response. It is a steady stream of oil. Not a drops but a column of oil exiting out of the over flow. It was running fine when I shut it down after I noticed it. Oil barely showing on the dipstick.
Thanks again,
Steve

 

[ruffdog]

Is the oil not draining down to the pan from the top of the engine (blocked hole)? Is there excessive blowby?

 

[Parfleche]

I would say oil is not draining to the pan, excessive oil but no black smoke. I don't know how to check if oil is blocked from draining down to the pan, but based on the amount coming out of the top through the overflow tube, yes that is a good probability. I am versed in gas engines but do not know how to approach this in a diesel. what should be my next step to check for blockage?
THANKS PROFUSELY FOR TAKING AN INTEREST IN THIS!
Kind Regards,
Steve (originally from Cedarburg/Mequon WI)

 

[gimmodog]

what should be my next step to check for blockage?

Kind Regards,
Steve (originally from Cedarburg/Mequon WI)

pull the valve cover off and have a good flashlight handy. pulling head would be my next move.

 

[Parfleche]

Thank you. Are there any problems with taking the cover off of that engine? Or can I just unbolt and remove? Thanks again.

 

[thclimer]

These pages may help, hope you are able to solve your issue.

 

[thepumpguysc]

While the engine is COLD & before any attempt to start it.. CHECK the engine oil LEVEL w/ the dipstick.. just to see if its actually over filled..
Maybe u didn't do it but the engine is "making oil"..??
Its possible the injection pump is leaking fuel & its going into the crank case & "making oil".??
Just pull the stick & check the level..
Hope its something simple..

 

[Parfleche]

While the engine is COLD & before any attempt to start it.. CHECK the engine oil LEVEL w/ the dipstick.. just to see if its actually over filled..
Maybe u didn't do it but the engine is "making oil"..??
Its possible the injection pump is leaking fuel & its going into the crank case & "making oil".??
Just pull the stick & check the level..
Hope its something simple..

Yes, that is what is happening, thanks for this. There is no leaking anywhere else except through the breather hose from the top of the engine. What is it a gasket? Or? I am hoping it is not something to hard or expensive to fix. Let me know what you think? Thank you very much!
Kind Regards,
Steve

 

[thepumpguysc]

There are only 3 places fuel can enter the engine when its not supposed to be there..
1> the injectors.. if the injectors are stuck OPEN they will dump abunch of fuel into the cylinders.. BUT, you'll get a tremendous amount of BLACK smoke when that happens..
2> a supply pump.. if your machine has a mechanical supply pump attached to the engine block.. The diaphragm can rupture & dump a massive amount of fuel into the crankcase.{oil}
3> the injection pump.. I see on your machine u have the PFR style Zexel pump? Small pump that sits into a slot on the engine & has 4 hold down screws on the corners..
If its the injection pump, the pumping plungers get worn & allow fuel to pass between them & into the oil..
But if that happens, the machine will be very hard to start, due to the worn plungers..

 

[Parfleche]

There are only 3 places fuel can enter the engine when its not supposed to be there..
1> the injectors.. if the injectors are stuck OPEN they will dump abunch of fuel into the cylinders.. BUT, you'll get a tremendous amount of BLACK smoke when that happens..
2> a supply pump.. if your machine has a mechanical supply pump attached to the engine block.. The diaphragm can rupture & dump a massive amount of fuel into the crankcase.{oil}
3> the injection pump.. I see on your machine u have the PFR style Zexel pump? Small pump that sits into a slot on the engine & has 4 hold down screws on the corners..
If its the injection pump, the pumping plungers get worn & allow fuel to pass between them & into the oil..
But if that happens, the machine will be very hard to start, due to the worn plungers..

The "made oil" does not have diesel fuel in it. It is a mixture of motor oil and hydraulic oil. So I thought it may be a gasket or something wrong where the hydraulic pump sits on the engine? Thanks for your reply, futher information/thoughts would be much appreciated. Thanks again.
Kind Regards,
Steve

 

[thepumpguysc]

THAT was going to be my next suggestion.. a lot of people THINK its fuel when all along its hydro oil..
I had a fella bring his little pump back 3x.. insisting its wrong & I HAVE TO do something about it.. He had changed his oil 3x..
I did something about it alright.. I called a mechanic buddy of mine to EXPLAIN to him how to check between fuel & hydro oil..
I never heard from him again..

 

[rgr33]

I’m not really clear on this, how does hydro oil get in the crankcase?

 

[stuckmotor]

THAT was going to be my next suggestion.. a lot of people THINK its fuel when all along its hydro oil..
I had a fella bring his little pump back 3x.. insisting its wrong & I HAVE TO do something about it.. He had changed his oil 3x..
I did something about it alright.. I called a mechanic buddy of mine to EXPLAIN to him how to check between fuel & hydro oil..
I never heard from him again..

Pumpguy,
Please don't leave us hanging. How do you tell between fuel and hydraulic oil?

 

[thepumpguysc]

I don't exactly remember.. something to do as simple as a paper towel & a few drops of contam. oil..
fuel will get absorbed immediately & the hydro oil will sit for a few sec..on the towel before getting absorbed.

 

[ch1ch2]

Had it happen to me.
Hyd pump on the side of the engine leaks into the engine.

 

[stuckmotor]

I don't exactly remember.. something to do as simple as a paper towel & a few drops of contam. oil..
fuel will get absorbed immediately & the hydro oil will sit for a few sec..on the towel before getting absorbed.

Thanks. I hope I never need to know that.

 

[Parfleche]

THAT was going to be my next suggestion.. a lot of people THINK its fuel when all along its hydro oil..
I had a fella bring his little pump back 3x.. insisting its wrong & I HAVE TO do something about it.. He had changed his oil 3x..
I did something about it alright.. I called a mechanic buddy of mine to EXPLAIN to him how to check between fuel & hydro oil..
I never heard from him again..

Sorry I have not replied in a timely fashion. I will check to see if it is hydraulic oil or diesel. I took a sample to a diesel mechanic and he smelt it and told me it was not diesel/oil mix?

I will see if I can get conclusive evidence. Where would this be coming from if it is hydraulic?

Thank you for all your kindnesses!
Kind Regards,
Steve

 

[Parfleche]

Had it happen to me.
Hyd pump on the side of the engine leaks into the engine.

Thank you very much ch1ch2 for this information.

Kind Regards,
Steve