I have a stock 83 FJ60 and all is running well except I have an oil leak from my transmission into my transfer case. Obviously the breather hose does not work to cycle the oil back into the transmission so I was wondering what your thoughts are on running the same breather hose from the FILL plug of the transfer case to the DRAIN plug of the transmission. I know my transfer case is always going to have excess oil and was thinking that with the pressure and downward flow that would result from connecting it like that would regulate the levels in both. Any thoughts here? It would be easy then to just check the Transmission fill plug for its correct level. I am buying time until I put in the 5 speed and do all associated work then but was just thinking out loud today.
Hypothetically speaking... (1 Viewer)
- Thread starter advenjure
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That hose workaround is just a gravity feed. If you connect the hose as you described, the transmission gear oil will drain until both cases ' oil levels are exactly the same.
Bottom line: the transfer case will get waaaay overfilled and the TMS will drain most of its oil into the transfer.
Bottom, bottom line: Don't do it.
My transfer case did the same thing (slowly got overfilled from leaky seal). It did it for 15 years. Just drain the excess out of the transfer case occasionally and put it back into the transmission- or pump new oil in.
Yeah it's a pain - but not too bad
g-man
SILVER Star
Replace the transmission rear shaft seal.
Only proper fix is to split the case and replace the seal. May as well rebuild the t/c while apart. Steps for this are in the 84 chassis and body fsm under transfer case section.
Only proper fix is to split the case and replace the seal. May as well rebuild the t/c while apart. Steps for this are in the 84 chassis and body fsm under transfer case section.
g-man
SILVER Star
If you're just buying time until the 5 speed...I'd just do the bypass hose for a while.
- Thread starter
- #6
I appreciate the replies. I didnt think of checking the bolts through the PTO cover. I will do that first thing tomorrow. Otherwise I will just stay on it, draining and refilling as necessary. Its not that bad really just something extra you have to do every now and again. Thanks again,
