Differential Leak

Steven, Avilla MO · May 29, 2012

I have the same differential leak that is mentioned in a recent post. I believe the axle seal is leaking on the differential carrier plate. Oil then drips from the trumpet weep hole. I replaced the seal but there is a groove worn into the axle from the seal. I"m assuming I need to replace the axle. Does the planetary carrier need to be removed in order to replace the axle? I"m somewhat reluctant to disassemble the planataries because the MF manual makes it look complicated and technical. Also, it looks like there are 2 pinion axles and 3 pinion axles. Does anyone have any experience in this area?

Masseynut(Australia) · May 29, 2012

Hi Steven,
You don't need to replace the axle, a "speedi-sleeve" will solve the problem.
You can remove the axle from the epicyclic end quite easily, but you will need to replace the "cork" gaskets if either or both are disturbed. No re-setting of the bearing pre-load should be necessary if it is already with-in specs.
Just remember to drain both the transmission and the final drives first. When attempting to remove the epicyclic hub, lock the brake on that side first. This ensures that the brake discs are locked in a position, whereby the axle can be returned to the housing with minimum fuss and effort.
Evan.

Laneman · May 30, 2012

You may be still be ok with a groove in the axle, depends on how deep it is. A new seal will often work inside the grooved area as long as the seal can make good contact with the axle. You'll have to use your judgment for deciding how much of a groove is too deep.

Laneman · May 30, 2012

One more thing, make sure the axle is polished and smooth where the seal rides, any rust or pitting will also cause leaks.

Steven, Avilla MO · May 30, 2012

Thanks for the responses. Evan, how is the stub wheel axle held in place? Does that require disassembly of the planatery? I think the outside wheel axle seal is leaking a tad. I thought about fixing that as well. What would you charge to replace all seals in the trumpet/planataries if I removed and shipped over to you? Every once in a great while we ship some pallets your way.

Masseynut(Australia) · May 30, 2012

Depending if your machine is pre or post 100 series, the axle retaining idea varies a little. Mf 65's and early industrial 40's used a two piece retaining spacer, where as the later Masseys used a snap-ring and relied on the axle being an "interference" type fit in the hub. Meaning that once the snap ring was removed, the axle was then pressed out of the hub at around 30 tons.
Once removed, replacing both the seal in the differential carrier plate, the inner and outer final drive hubs, and wash-up, should take around 2 hours tops, provided everything else is in good order.
Evan.

Steven, Avilla MO · May 31, 2012

Thanks Evan. I have a 1965 165. So I guess that means I need a 30 ton press? Are you anywhere near Hallam VIC 3803? Two hours works means about $150 dollars right?

Masseynut(Australia) · May 31, 2012

Yes, Steve, the 165 model will need pressing. I am two states and 1000 miles north of Hallam, up the sunny state of Queensland. Road freight would be expensive, as the price of diesel here at the moment is over $1.50 a litre! That equates to roughly $6.75 a gallon in your speak. You can do the sums to get it here, and I'd be more than happy to do it for you. $150.00 is spot on.
regards, Evan.

Differential Leak

Steven, Avilla MO

Member

Masseynut(Australia)

Member

Laneman

Member

Laneman

Member

Steven, Avilla MO

Member

Masseynut(Australia)

Member

Steven, Avilla MO

Member

Masseynut(Australia)

Member

Similar threads