MichaelAllen
New Member
Hi all,
I'm having fits here with the input seal of my old LT230T (mated to an LT77), an old 20D model (built around '87). Here's the condensed tale so far (insert your own swearing):
I was losing transfer case fluid between the transmission and transfer case. So I pulled things apart and replaced the intermediate shaft o-rings, the LT230T input seal, the oil seal collar on the LT77, and the LT77 output seal. I installed the input seal flush with the surface of the case. This sealed up wonderfully for about 200 miles then started leaking worse than ever.
Pulled things apart again, and the LT230T input seal had shifted so that the bottom portion stuck out a bit. So, since there's no stop when pounding in the input seal (the seal can be pushed into the case - why is that?), and the seal rode on the front of the oil seal collar, I thought I'd be clever and push in the seal an extra 3/16" or so, maybe 4 mm from the lip of the case. Note that in both cases, I coated the outside of the seal with RTV.
Put things back together and I'm still leaking fluid. Not nearly as bad as when the seal slipped, but not much better than before I started, i.e. nothing I'd want to drive across country with. So is the seal pushed back too far or is it just not square? Or have I mucked up something else?
The service manual references 18G1422 to install the seal, but that's not something I have access to.
Thanks in advance.
I'm having fits here with the input seal of my old LT230T (mated to an LT77), an old 20D model (built around '87). Here's the condensed tale so far (insert your own swearing):
I was losing transfer case fluid between the transmission and transfer case. So I pulled things apart and replaced the intermediate shaft o-rings, the LT230T input seal, the oil seal collar on the LT77, and the LT77 output seal. I installed the input seal flush with the surface of the case. This sealed up wonderfully for about 200 miles then started leaking worse than ever.
Pulled things apart again, and the LT230T input seal had shifted so that the bottom portion stuck out a bit. So, since there's no stop when pounding in the input seal (the seal can be pushed into the case - why is that?), and the seal rode on the front of the oil seal collar, I thought I'd be clever and push in the seal an extra 3/16" or so, maybe 4 mm from the lip of the case. Note that in both cases, I coated the outside of the seal with RTV.
Put things back together and I'm still leaking fluid. Not nearly as bad as when the seal slipped, but not much better than before I started, i.e. nothing I'd want to drive across country with. So is the seal pushed back too far or is it just not square? Or have I mucked up something else?
The service manual references 18G1422 to install the seal, but that's not something I have access to.
Thanks in advance.