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Massey Harris & Massey Ferguson Tractors Discussion Forum
:

Hydraulic oil leak

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Red Rex

11-26-2019 11:16:10




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I have hydraulic oil leaking from these 2 areas. Just gaskets / o rings or signal of greater issues? Can the po leak be remedied without removing the lift cover?






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Red Rex

12-05-2019 10:33:07




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 Re: Hydraulic oil leak in reply to Red Rex, 11-26-2019 11:16:10  
I will check this over the week end. The leak out of the top did not start until I put the position control lever in constant pumping. Normally I use draft control with all implements. I was showing one of the guys in my hunting club how to use the tractor with boom pole in case he needed to load a deer into his truck when the leak started.



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Red Rex

11-29-2019 14:16:09




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 Re: Hydraulic oil leak in reply to Red Rex, 11-26-2019 11:16:10  
Quoting Removed, click Modern View to see

Appreciate the replies! It has been 12 years since I have had the lift cover off. Think the method suggested would be excellent. I believe I will address the o ring issue first as it will be a while before we see any 70 degree days



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Jarvis

11-29-2019 12:55:21




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 Re: Hydraulic oil leak in reply to Red Rex, 11-26-2019 11:16:10  
I'm sure it was in the right place. I have taken off the access panel to the filter and can see if the pipe is correct if I shine a light inside. I'm ordering new orings and a hyd oil filter. Hope that works. Thanks for the picture.



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John Deere D

11-29-2019 14:29:34




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 Re: Hydraulic oil leak in reply to Jarvis, 11-29-2019 12:55:21  
With fuel shut off..Transmission in Neutral,3 point lift control lever up cranke the engine...Is there OIL present as per picture ?

Bob...



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Jarvis

11-29-2019 09:58:12




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 Re: Hydraulic oil leak in reply to Red Rex, 11-26-2019 11:16:10  
I just tried to repair the same leak on my 135 with a control valve instead of a cover. The stand pipe came out with the control valve. The orings look OK on both ends but now I have zero hydraulics. I've put it together twice. Once with the pipe first then the cover. The second time with the pipe in the cover. Any ideas on what went wrong?



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John Deere D

11-29-2019 10:55:50




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 Re: Hydraulic oil leak in reply to Jarvis, 11-29-2019 09:58:12  
When I installed remote HYD VALVES on my MF FE35 X I had NO oil at remote HYD control valves.........finally I installed the stand pipe...with fuel shut off..Transmission in Neutral and lift control lever up I cranked the engine... there was no %*&&%#$^(* ....I did not have the stand pipe in the discharge port of the oil pump.

Bob..

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John Deere D

11-26-2019 15:15:47




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 Re: Hydraulic oil leak in reply to Red Rex, 11-26-2019 11:16:10  
Good day Red Rex .........At the end of the day it's your $$$$$'s your Tractor........

Pics of my MF FE 35 X ,and Ford 2-N....NO LEAKS...

I always REPLACE gaskets with NEW gaskets........

I always clean all mating surfaces so as only clean metal is present.......

Then clean all metal surfaces with a cloth that has had STARTING FLUID ...or equivalent sprayed onto cloth..

Metal must be 70 deg F and not cooler.......

Some forum of permanent gasket adhesive is added to one side of the gasket and as per direction suggest to bond NEW GASKET to the metal surface....

Gasket is then placed in place so as to never leak...

NEW Gasket face that is to attach to top cover (that is spotlessly clean) is LIGHTLY coated with an approved silicone product or a light coating of lithium grease.

Top cover is then torqued to housing as per service manual..

Bob...

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Red Rex

11-26-2019 14:01:12




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 Re: Hydraulic oil leak in reply to Red Rex, 11-26-2019 11:16:10  
Thanks, there are gaskets under the lift cover, I put them there last time I had it off. They are paper thin, like greek pastry crust. OK to use RTV sealant in conjunction with them for a better seal?

To replace the O rings under the 2 bolt cap, do I have to be aware of issues like removing the roller from the pump arms to unbolt the cap and change the o rings?



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Dieseltech

11-26-2019 15:46:41




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 Re: Hydraulic oil leak in reply to Red Rex, 11-26-2019 14:01:12  
Nope, the cap lifts straight up. There's the standpipe the cap fits over with O rings at each end, and a square cut O ring in the cap for the lift cover cylinder port. Pipe MIGHT lift up with the cap, or stay in the pump outlet port.



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Dieseltech

11-26-2019 13:10:30




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 Re: Hydraulic oil leak in reply to Red Rex, 11-26-2019 11:16:10  
There are O rings under the two bolt cap, other is a gasket originally, may be sealed with RTV now.



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