47farmallM
Member
why would my 986 be leaking here.... I marked the area in the square ...its def leaking hydro fluid and getting worse
- Thread starter 47farmallM
- Start date
47farmallM,Depending on where you are in the seal going out it may leak while shut down, and leak very little to none when running!
"Lower Rock Shaft Seal" Big Project to do! Send tractor to a good general tractor mechanic, will cost about $1000 to have done maybe some less,,, when I had my 966 done last yr I had both Lower Rock Shaft Seals done and adjust my Clutch and TA, Tweak my Injector pump while there at their shop.
Basically drain and catch all rear-end Oil,
Remove whole PTO unit.
remove keepers so shaft can be removed and seals replaced!!
Most all work is done through the PTO hole in the rear end!
Hope this helps.
Later,
John A.
"Lower Rock Shaft Seal" Big Project to do! Send tractor to a good general tractor mechanic, will cost about $1000 to have done maybe some less,,, when I had my 966 done last yr I had both Lower Rock Shaft Seals done and adjust my Clutch and TA, Tweak my Injector pump while there at their shop.
Basically drain and catch all rear-end Oil,
Remove whole PTO unit.
remove keepers so shaft can be removed and seals replaced!!
Most all work is done through the PTO hole in the rear end!
Hope this helps.
Later,
John A.
A 986 has a cat 2 hitch and that left side can be pulled off and O-rings replaced without even draining the rear. Polish up any grooved or rusted parts . Parts book is confusing and shows two O-rings on right side but they are on the left side where that one is leaking. Have repaired many but they were usually on much newer tractors so wear may be a factor on this one. You need to get correct O-rings not some will fit jobbers. If it was a cat 3 you would have to pull whole shaft out to service and you also have to to do right side of this hitch.
47farmallM
Member
hey pete I been looking on case parts but I have yet to find that diagram for that part. have any idea what they call that part
Allan in NE
Well-known Member
Torsion bar.
Allan
Allan
47farmallM
Member
hey allan is that the torsion in the hydro pump?
Larry B. 1486
Member
The torsion shaft seals. Been there several times with my past IH tractors. Done exactly like Pete 23 said to do. Once they start to leak, it only gets worse.
Owen Aaland
Well-known Member
Looks like the retainer strap for the fuel tank needs to be loosened up a bit. When they are strapped down too tight the tank will collapse like in your picture.
47farmallM
Member
sweet thanks guys.. I knew if I came to ya that ya would know what to do.. I guess ill just do both sides at one time.. owen that's not my exact tractor just one I found on google images but its funny cause my tank looks just like it..
just another project to get done after I heal up from my hand surgery..
just another project to get done after I heal up from my hand surgery..
47farmallM
Member
ok too this apart today and rpcled the outter oring on the tractor. but I couldn't find the part number for the oring in the crank arm online.
Owen Aaland
Well-known Member
Pete gave the answer:
"Look in hydraulics, 10-38. O-rings are number 10 & 4. Under draft control parts."
Do a search for 986. Select hydraulics. Look down through the hydraulic listing and select (10-38).
For both sides it takes one of item 10 and two of item 4.
"Look in hydraulics, 10-38. O-rings are number 10 & 4. Under draft control parts."
Do a search for 986. Select hydraulics. Look down through the hydraulic listing and select (10-38).
For both sides it takes one of item 10 and two of item 4.
47farmallM
Member
ok I installed the one number 4 on the outside. if I pull that retainer out for the other one will all my hytran come out also?
Hello. I ran across your post while researching an oil leak on our tractor. I don't know if you will get this question or not, as this posting is several years old. We have a 986 that is having the same leak as yours did. Were you able to replace both left side o-rings without draining the oil? I'd rather not drain the oil if it is not necessary to replace the o-rings, but will if needed. BTW, we are just up the road in Denton, so hello fellow North Texan!
Vince
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