|
Post by dclambertt on Apr 23, 2014 17:27:35 GMT -5
In the process of changing all my fluids I found the transfer case was low enough that I couldn't reach the fluid through the fill hole. After draining the fluid and refilling with Redline GL4, I now seem to have found out why the fluid was so low. The bottom of the t-case is constantly wet with what looks and smells like GL4. I first thought it was tranny fluid, but it didn't look like tranny fluid.
The Redline was not a thick fluid like I expected it to be at that viscosity. Is there a bleed hole, etc. at the top that could be releasing the fluid? Anyone experience this type of transfer case leak?
Thanks for any comments.
|
|
|
Post by gumbydamnt on Apr 24, 2014 21:51:04 GMT -5
I just pulled my XFER case off today and put on my new Xmsn. There is a bleed hose on the very top that runs fwd to the same spot as the XMSN Bleed tube . I hope the Pic works OK. I used paint to do a quick edit. If you can open it large enough the bleed hose is outlined by a thin red line. It comes out right at the shifter and when installed follows the thick redline toward the front of the XMSN. The black square bracket holds the Bleed/vent lines for the XMSN and XFER. If you look on the XMSN where the two components mate I used a thin red line to circle a channel that acts as a case drain and will leak XMSN fluid if the XMSN output seal is leaking or gear oil if the input seal is leaking on the XFER. I never noticed the case drain until I separated them but it should look like a small rectangular hole right between them and just aft of the crossmember that supports them. (it may be above the crossmember, Hopefully I will have XMSN back in tomorrow and can tell!) Hope this helps! If the pic doesn't work well PM me your email and I will send the 3.4 meg file to you that can be zoomed in better.
|
|
|
Post by gumbydamnt on Apr 24, 2014 21:59:39 GMT -5
Another thought. It could be the output seals for the drive shafts. You might try taking it for a drive and then immediately wrap shop towels around where the drive shafts slide in and maybe tuck one where the case drain is and give it some time to leak and then pull the towels off and that should show if they are leaking or not. IF i notice anything else it could be as I reassemble I will let you know. Good luck!
|
|
|
Post by dclambertt on Apr 25, 2014 12:06:45 GMT -5
Awesome photo Gumby, worked perfectly.. filled my 30" screen! And thanks for the detailed reply.
|
|
|
Post by dclambertt on Apr 29, 2014 11:06:21 GMT -5
Gumby, looking closer at your excellent photo, that case drain channel looks like it has two tiny channels running into it.. one above and one below. Is that right? If so, the lower channel would allow any fluids present to flow right past the gasket unless I'm missing something. I'll have to take a closer look at mine next time I'm under it.
UPDATE: Found the channel easily. Decided to plug with exhaust sealant to see if that's where the fluid was coming from and looks like it is not. Appears to be coming down from above, and definitely gear oil. May have to open up the tunnel console to see where it's coming from, otherwise drop the tranny. Not.
|
|
|
Post by gumbydamnt on May 11, 2014 15:41:39 GMT -5
Sorry for the late reply I have been traveling and internet was very limited. You may want to remove the sealant to stop future issues. There is no gasket where the tranny and XFER meet. That hole just allows drainage if the output seal on the transmission or the input seal on the XFER leaks. Otherwise the area could fill up and cross contaminate the other system.
Other than the little vent tube at the XFER shifter if it is towards the back of the XFER it could be one of the 4wd system switches leaking or maybe the speed sensor.
If it is coming from the front of the transmission it probably is the vent tube since that would be the only thing that would put gear oil that far fwd. You should be able to slide it out of the black bracket it sits in and zip tie it somewhere that you can see it. You would just have to reach your hand up next to where the transmission shift cable bolts to the shift lever and see if you can grab it.
Good luck!
|
|