T90 Tranny Dropping oil after rebuild

I had my clutch replaced and transmission rebuilt recently. Seems to shift well but I am not sure the shop has ever worked on a T90 before.

I am seeing quite a bit, maybe a 1/10 of a pint of oil below the transmission below the jeep, each time I drive it.

I tightened the oil pan just to ensure that wasn't it.

I am seeing oil come out of multiple places
1. The bottom of the transmission. It almost looks like a plug is missing. Looks like this may be the oil collector?
2. It looks like where the clutch rod connects to the tranny?

Blue is engine. Grey is tranny

MISC places.

Should I be concerned about this?




Hope this pictures come through

 

Direct link to pics if they do not post
Passenger side
http://tinypic.com/r/30d9y4z/8
Clutch linkage
http://tinypic.com/r/jfj5z5/8
Bottom of tranny
http://tinypic.com/r/2d9pm52/8

 

Check top where the tower is connected make sure the oil is not coming from there as it only happens after running if they did not put the shift tower on correct when you run it could be throwing gear oil and allowing to leak around and look like it is coming from all over.

Just a thought I am kinda new at this and I am replacing a tranny right now a side shift so a little different.

 

I had this problem when I forgot the felt seal on the input of a T90 once. Also, be sure it is gear oil, a rear main will make the same mess.

 

Take the inspection cover off the top of the bellhousing and see if you can tell where it is coming from. Mine used to leave a puddle on the ground before I changed to a sealed input shaft bearing.

 

If it's gear oil then it looks like the front seal to me.

 

2nd the front seal... Looks like oil is blowing out of the hole in the bell housing where the clutch fork is. It would just about have to be input shaft seal if gear oil or rear main if its motor oil.

 

Thank you all for the input

 

Here is an update:
Took it back to the transmission shop that did a minimum rebuild. For perspective I understand he cleaned the transmission, replaced the clutch, and then relubed everything. He stated he did not remove any bearings for fear of breaking them.
He put it back on the lift and is saying the leak is coming from the transfer case, which he claims he didn't touch. He says the transfer case needs to be resealed and this requires rebuilding the whole transmission (the bearing was the big thing he is worried about). He says this is a major job.

My question is can the transfer case be resealed without touching the transmission? If so, how do you advise this be done?

Thanks
M

 

Is the T90 mated to a Dana 18? At any rate, it's hard for me to believe that the fluid coming out of the bellhousing, where the clutch fork is, is coming from the transfer case... Also, the transmission does not need to be rebuilt even if the leak is coming from the transfer case. You would need to drop the transmission and transfer case, and separate the two. The transfer case seals don't really have anything to do with the transmission internals. I would look at the rear main as being the culprit. That oil in the picture looks reallllly black to be gear oil, especially if they changed the fluid in the transmission and transfer case.

 

First, what DID they do to the transmission? What is a minimum rebuild? I've been doing Jeep transmissions for well over 20 years and never heard of this. The oil coming from the bellhousing has NOTHING to do with the transfer case. There may be oil leaking from the transfer case but that is not shown in the pics. The oil looks like it's coming from the bellhousing area which means it's leaking from the front of the transmission or the back of the engine. Without knowing what was done it's impossible to know if the transmission shop is at fault or not. The transmission input shaft seal is not a normal lipped seal but is a felt piece sandwiched between the front bearing retainer and input shaft. If these are not soaked in oil prior to installation they usually tear and you get a major leak like that.
Him saying he was afraid to remove the bearings for fear of breaking them makes this shop suspect. If the bearing is damaged on removal either it needed replaced anyway or they don't know what they are doing or don't have the right tools for the job.

 

Yes I believe it still is as the jeep us very drivable.

I asked them to check the rear seal. I agree that is black oil!

 

I had some repair made on my gear box and I checked all nuts and tighten them more, it is enough to block leaks. Just check if all is well tightened.

 

He had to remove the tranny/transfercase in order to do the clutch. And the two cases should have been separated to do a rebuild on the tranny.

You might want to get a full service manual and do it your self. There really isn't a whole lot to either the tranny or transfercase. The hard part is getting them out and then back in again.

And they will have to come back out so you can clean all of that oil off of the clutch assembly.

Maybe take it to a reputable shop like Midas or a 4x4 shop.

 

I am looking to replace the rear main seal. I am told I need a one piece not the two piece. Anyone know where I can but one at a reasonable price with fast delivery?

I can't find any on RockAuto

 

Looks like all that trans got was an aerosol overhaul. What engine do you have? Can't say what main seal you need without knowing.

 

I'm with everybody on the front seal. I had a similar issue with a T90 I had somebody "rebuild" for me. Turns out he didn't do squat and I mistakenly went ahead and put the thing in and now I have oil from all the same places, which I take to be the front seal. The tranny had been sitting for a long time and I assume the front seals are shot.

I am dealing with the transmission/transfer case issue right now, in fact. I am putting together a '67 and had a massive leak after mating the two and found a retainer plate block the seal. In that case the oil was coming out around the joint, not in the front. To me the idea that a bad mate between tranny/transfer would cause oil to come out of the bellhousing doesn't make any sense.

If you'd like a better idea of how that transmission works, I just found (yesterday, in fact) a really nice video on a T90 rebuild that was put on youtube. It's under Spicer T90.

It seems, from what I've seen, that one issue with these older jeeps is that the seals they used in the day, rope & felt, dry out over time and that tends to be one big cause of leaks if they aren't replaced. I scrounged around and found a used T90 that I set aside, the plan being to rebuild it when I have time and swap it out with the one that's leaking.

Anyway I have a ton of pictures if you need to see anything.

Tom

 

I have an F134 engine.

 

During assembly of my D18 I made sure to put RTV on all the output and input shaft splines. Seemed to make a huge difference.