stuzbot
Well-Known Member
- Joined
- Jan 20, 2021
- Messages
- 472
As I mentioned in elsewhere, my "almost-a-Colorado" has some oil misting around one of the rear wheels, which I think is a weeping hub seal, rather than brake cylinder. Also, it came with a new Toyota hub seal in amongst the folder of receipts etc. which points to someone else having made the same conclusion.
Anyway, this avvy, I embarked on the business of giving all of the underside a damned good going over with the wire brush, prior to Vactan-ing and painting. And, since I started with the rear axle, a query?....
Am I correct in thinking that one of the possible causes of a weeping hub seal can be pressure build-up in the axle/diff due to the breather being blocked? And, if that is the case, where would the breather be and how do you test whether it's blocked or not?
I spotted this likely candidate while brushing round the rear diff housing. But, when I had a feel round it, it just felt like all metal rather than having a breather valve of some kind. So I'm assuming that isn't it... unless it's so clogged solid, it just feels like an solid lump of metal.
Anyway, this avvy, I embarked on the business of giving all of the underside a damned good going over with the wire brush, prior to Vactan-ing and painting. And, since I started with the rear axle, a query?....
Am I correct in thinking that one of the possible causes of a weeping hub seal can be pressure build-up in the axle/diff due to the breather being blocked? And, if that is the case, where would the breather be and how do you test whether it's blocked or not?
I spotted this likely candidate while brushing round the rear diff housing. But, when I had a feel round it, it just felt like all metal rather than having a breather valve of some kind. So I'm assuming that isn't it... unless it's so clogged solid, it just feels like an solid lump of metal.