I hope I solved the problem, but I'm not sure:
I started leaking 90weight out of my front diff after I replaced the CV's a couple months ago. It was just a drop once in a while out of the end of the driver's side diff housing where the cv enters the diff.
I let it go for a while, and the leaking got worse, so I ordered and installed a new OEM seal. I was thinking that I may have knicked or damaged the old seal on removal or reinstallation of the CV (it was 12-year old rubber). The leaking was non existent for a week or so, then it started leaking again!!
I checked the diff fluid level last night, and when I opened the check/fill port, there was noticable pressure inside of the diff... it make a good ppssshhhh sound, and some oil leaked out. This lead me to believe that my breather is plugged. I found the breather, and the end cap was rusted beyond belief. I don't know if any air was able to exchange through it or not. I destroyed it trying to get it off before I replaced the entire line.
I happened to have some 1/4inch ID fuel line, so I replaced the line, ran it up higher into the engine bay (next to my second battery) and "capped" it with a cotton pad and rubber band until I can get a proper filter on it.
I am hoping that my leak was caused by the built up pressure, and the new breather line will keep it from happening again. I really don't want to have to change that seal again... and hopefully my new driver's-side CV isn't causing the problem (out of round, warped, etc.)
Has anyone else experienced this, or have $0.02 to add?
I started leaking 90weight out of my front diff after I replaced the CV's a couple months ago. It was just a drop once in a while out of the end of the driver's side diff housing where the cv enters the diff.
I let it go for a while, and the leaking got worse, so I ordered and installed a new OEM seal. I was thinking that I may have knicked or damaged the old seal on removal or reinstallation of the CV (it was 12-year old rubber). The leaking was non existent for a week or so, then it started leaking again!!
I checked the diff fluid level last night, and when I opened the check/fill port, there was noticable pressure inside of the diff... it make a good ppssshhhh sound, and some oil leaked out. This lead me to believe that my breather is plugged. I found the breather, and the end cap was rusted beyond belief. I don't know if any air was able to exchange through it or not. I destroyed it trying to get it off before I replaced the entire line.
I happened to have some 1/4inch ID fuel line, so I replaced the line, ran it up higher into the engine bay (next to my second battery) and "capped" it with a cotton pad and rubber band until I can get a proper filter on it.
I am hoping that my leak was caused by the built up pressure, and the new breather line will keep it from happening again. I really don't want to have to change that seal again... and hopefully my new driver's-side CV isn't causing the problem (out of round, warped, etc.)
Has anyone else experienced this, or have $0.02 to add?
