oil leaking out of clutch housing handhole cover

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LittleJohn
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oil leaking out of clutch housing handhole cover

Postby LittleJohn » Fri Jun 12, 2020 3:44 pm

Took my cub out . tried out the shifter rod for the belt pully (with no belt connected yet) oil came streaming out the clutch housing HANDHOLE COVER. THE wingnut was not very tight. I tightened nut . Not sure what caused the problem. Where is the oil coming from ? How to I refill it ? Could there be another problem ?
Cub Leak.jpg

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Re: oil leaking out of clutch housing handhole cover

Postby Bob McCarty » Fri Jun 12, 2020 4:04 pm

You either have engine oil leaking from the rear engine seal, or transmission (gear) oil leaking from the front seal of the transmission. Depending on the slope of the ground the Cub is parked on, it could be coming from either end. If you can differentiate between the two oils, that will narrow it down. Also check the dipstick to see if the engine oil is low. I'd remove the hand hole cover and see how much oil drains out.
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Re: oil leaking out of clutch housing handhole cover

Postby Cub-Bud » Fri Jun 12, 2020 4:05 pm

Is it motor oil or gear oil :?: If it's motor oil, it's likely coming from the rear engine oil seal. If it's gear oil, it's coming from the transmission input shaft seal. Did or does the oil leak only when the PTO lever is engaged :?:
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Re: oil leaking out of clutch housing handhole cover

Postby Peter Person » Fri Jun 12, 2020 4:08 pm

If it's motor oil, most likely the rear seal is shot. Contact Tim (tst) and he will set you up with a reasonably priced replacement. He usually has an Ad in The Vine, but they time out after a period of time.
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Re: oil leaking out of clutch housing handhole cover

Postby LittleJohn » Fri Jun 12, 2020 5:03 pm

Thanks, Guys. It was Tranny Fluid . I filled fluid until it was clear. It was milky white. Now it sound ok. tighten wingnut. Checked belt drive. works ok. I think IM ok. Let you know if I have anymore problems once I install the belly mower.

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Re: oil leaking out of clutch housing handhole cover

Postby Barnyard » Fri Jun 12, 2020 5:16 pm

The cover plate underneath will not keep the oil in. If you are leaking trans fluid you will need to split the Cub and replace the front trans seal.

If the oil was milky did you drain the trans and flush it? You would then only add 3 1/2 pints of gear oil. Anymore than that and it will leak from the rear axle seals.
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Re: oil leaking out of clutch housing handhole cover

Postby Glen » Fri Jun 12, 2020 5:57 pm

Hi,
There should be no oil where the hand hole cover is.
The cover is not there to keep oil in the housing, just to keep dirt out of the housing.
The whole clutch housing is an area between the engine and transmission.

The trans front oil seal is back near the shifter, at the front of the trans.
The Cub has to be split to get to it to replace it.
The clutch housing has to be removed from the trans to get to it.

Below are listings from TM Tractor for the seal, and gasket.

http://www.tmtractor.com/new/tr/431fp.htm

http://www.tmtractor.com/new/tr/673fp.htm

Below are pics of where it is.
You can see the trans oil level plug in the pic, it is low on the left side of the trans.
That is the level to fill it to. :)
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Cub trans seal 2.jpg
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Glen
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Re: oil leaking out of clutch housing handhole cover

Postby Glen » Fri Jun 12, 2020 10:00 pm

Hi,
The wing nut on the clutch housing hand hole cover should be tight enough so the cover is snug, but don't over tighten it, you can bend the bar that the bolt in attached to.
Below is a page from the 1965 Cub operator's manual, showing the clutch, and the cover in place.

http://farmallcub.com/rudi_cub/www.clea ... age-52.jpg

Below is a listing for a new cover at TM Tractor, showing the bar that goes inside the clutch housing, it is not heavy metal, and can bend if tightened too much. :)

http://www.tmtractor.com/new/cl/475fp.htm

LittleJohn
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Re: oil leaking out of clutch housing handhole cover

Postby LittleJohn » Tue Jun 16, 2020 12:21 pm

Emptied fluid from transmission drain plug. Filled with kerosene until it came out the oil lvl plug. Question: How long do I keep it in before draining and refilling AND do I put it in gear and/or operate the PTO?

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Glen
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Re: oil leaking out of clutch housing handhole cover

Postby Glen » Tue Jun 16, 2020 5:04 pm

Hi,
Good that you are changing the transmission oil.

They say on here after putting in the kerosene in the transmission, to drive the Cub for 5 minutes or so, this throws the kerosene around in the housing.
I would run it in 3rd gear some, the speed of 3rd gear throws it more than slow speeds.
You don't need to run the PTO, it wouldn't do anything needed for cleaning the housing.

Then drain the kerosene out, and see how it looks.
If it is really dirty, you could put in new kerosene and drive it another 5 minutes.

Put in the 90 wt., or 80W-90 wt. gear oil after all the kerosene is drained out. :)


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