Re: Case 930 Comfort King help

A 6 speed has a wet clutch, and should have oil in there. It comes through a hole in the end of the crankshaft that also has a pin in the hole to restrict the flow a bit. It is returned to the crankcase by the ring gear carrying it around and dumping it in a cup which gravity flows back to the crank case. The couple quarts of oil in the bell housing need to be dumped when you change oil. It refills itself. If it is an 8 speed tractor it should be dry in there.

That's quite an interesting system. I don't remember seeing a pin in the hole, but the hole was quite small. We probably didn't think to look for it as it doesn't show in the parts description.
The main reason we split the tractor was because the engine oil was getting into the transmission and making it come out the transmission breather, mainly in transport.
But once we split it we saw that a piece of clutch plate had dislodged and the pilot bearing had nearly collapsed.
We replaced the rear main and some seals on the input shaft going into the tranny.
We thought that because it was old and breathing heavy that it pushed far too much oil out the crankshaft. But is the oil coming from the pressure from the oil pump?
the clutch started to slip yesterday. Not knowing that it's meant to be a wet clutch I drilled a hole in the drain plug yesterday for the clutch housing to self drain it. I measured about a quarter of a cup every 30 mins, does that sound about right? I will fix that hole tomorrow
Do you think because it was a new clutch it may have just needed one notch of adjustment?
Thanks for your help.
My old man bought two of these and I still use them both, mainly for field bin work. I love the sound of the case motor. It's what made me buy a 4694. Which still is a great tractor also

If its a 6sp 930 you need the oil in the clutch area. Drilling a hole in the drain plug is not a good ideal.

(quoted from post at 08:38:40 11/15/14)
If its a 6sp 930 you need the oil in the clutch area. Drilling a hole in the drain plug is not a good ideal.

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Yeh I realize now I need to plug the hole up. It is a 6 sp hand clutch.
Why was engine oil going into the transmission in the first place though?

Did you check the seals on the PTO shaft?

(quoted from post at 19:13:57 11/15/14) Did you check the seals on the PTO shaft?

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We replaced 2 seals on the shafts after removing the clutch bearing carrier. Are these the ones you mean or are they located in a different area?
Also, Dkase you mentioned that oil returns to the engine after being slung around by the ring gear. Does this happen on the rear baffle located on the bell housing. If so, what are the possibilities that this hole could block up and stop oil returning.
Thanks in advance
And sorry, there was a restricting pin in the back of the crankshaft

The only time I have seen a problem with oil returning to the crank case was on a DC I took apart that some door knob had installed a lining pin in the return hole. That caused the oil to rise to the point it ran over the rear top of the oil pan and back to the engine. That was on a reversed DC with a loader mounted on the back and the direction reversed. It is a 3 day job to split the engine from the transmission.

If you are going to use to six speed for stationary pto work, I believe you should block up one rear wheel and let it run in 1st gear. Hope someone else will chime in on my comment.