165 rear brake replacement

David Fisher · Dec 13, 2018

Stopped by a local shop today asking about them replacing the brakes and seals on my 165 Massey. All the man would say was there's a lot of labor costs involved. I could tell he really didn't want the job. I've worked on this kind of stuff all my life so removing the large wheels and weights and such are no problem to me. I just haven't been inside the axles or brake area before. Is there much to this job once I'm down to unbolting the axle ? I see there's a cluster of bolts on the outer area of the axle so I may need some books on this before going to far. Also on the right side you have the differential lock to work around.
Thanks...

David Fisher · Dec 14, 2018

Just watching a video online and it showed the whole axle coming off as a unit itself and then he went at the brake area from the inside end of that axle. Didn't look to be to bad of a job other then dealing with the heavy parts of the tractor. He replaced the seal, 6 brake bearings and the two brake pad plates. Even the seal was inside the axle and not the trans..
Kind of made it look to easy to be true. I think I can handle this job myself with a little help running the lift.

Dieseltech · Dec 14, 2018

Be aware there's a serial number break, early 165 used the same brake parts as the 65 did. Late models changed to a larger disc and actuator assembly. After the axle is pulled, the brake plate seal cover assembly comes off for brake access. Right side is harder due to the diff lock assembly. Also look for the outer planetary inner oil seal, when it leaks that will let oil into the brakes too.

David Fisher · Dec 16, 2018

"Also look for the outer planetary inner oil seal, when it leaks that will let oil into the brakes too."
Okay, is this on the outer wheel end of the axle once it's removed from the tractor or is this a seal in the trans ?

Dieseltech · Dec 17, 2018

There are TWO planetary seals, one next to the wheel, and the inner seal at the wheel axle end with the planetary off the axle housing.

David Fisher · Dec 17, 2018

I got a feeling that outer seal is behind a pressed on bearing. Does that outer part with the cluster of bolts separate pretty easy ?

Dieseltech · Dec 18, 2018

The outer seal next to the wheel is VERY DIFFICULT as a heavy press is needed to pull the carrier off the stub axle. Luckily they seldom leak.

David Fisher · Dec 19, 2018

Just wondering why there's not a weep hole like most of the older tractors have on the underside to let fluid drip if a leak occurs keeping it away from the brakes. After all the heavy moving of things involved I'd be tempted to drill one while it's off the tractor. On the video I watched online the mechanic also replaced the balls inside the actuator. Would you see any reason for that ? I've worked on the same type of brake setup on a International 350 several years ago and it worked pretty well when finished.
Thanks

ptfarmer · Dec 20, 2018

The balls could have very tiny flat spot's in them.

David Fisher · Dec 20, 2018

I'm guessing then the balls are of a softer metal than the actuator plates. I see the whole actuator available online for about $85 each but don't see the balls alone. I can check with my local dealer and see what he shows.

ptfarmer · Dec 20, 2018

The balls for the big square cast iron rear axle housings are part number 16780X. The balls for round malleable iron rear axle housings are part number 16779X (7/8" Diameter).

165 rear brake replacement

David Fisher

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David Fisher

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Dieseltech

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David Fisher

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Dieseltech

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David Fisher

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