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Username Post: Grease in hub        (Topic#351978)
B_Man 
Contributor
Posts: 133

Reg: 03-02-10
07-11-18 06:23 PM - Post#2739739    

Have a 57 Chevy rear end. There is grease inside the hub. Actually, globs of it hanging from some places like the brake springs. Would you suspect a rear end seal as I do?
The rear end had a posi-locker and 3:73 ring and pinion installed and all new seals. It sat a long time after that before the car was driven.



 

acardon 
Ultra Senior Member
Posts: 11020
acardon
Loc: DFW TEXAS
Reg: 03-25-05
07-11-18 07:31 PM - Post#2739745    
    In response to B_Man

Sounds like it, but rear end oil usually runs down the back side of the backing plate through the weep hole at the bottom of the bearing retainer plate. If it gets past the retainer, it can get on the brakes.
Check the vent hole in the rear end housing that prevents pressure from forcing oil out.

Don
66 Corvair (driving)
57 2dr HT (driving)
56 2dr HT (waiting to be restored)


 
YOUNG57 
Frequent Contributor
Posts: 1049

Loc: Tennessee
Reg: 12-06-10
07-11-18 07:52 PM - Post#2739746    
    In response to B_Man

Hub, I don’t understand hub. Grease? Or hypoid gear oil full of brake dust and dirt in the brake drum?

You may have a worn-out wheel bearing or its outer seal leaking. Correct 57 wheel bearings only had a seal on the outside and were constantly lubricated by the differential’s hypoid gear oil.

Old worn-out bearings with too much loose movement or defective replacement bearings with defective seals will allow gear oil to leak thru the seal.

But the bearing retainer should redirect leaking gear oil to the backside of the brake backing plate away from the shoes and drum.




 
B_Man 
Contributor
Posts: 133

Reg: 03-02-10
07-12-18 08:09 AM - Post#2739772    
    In response to acardon

Yew Don, that's what is puzzling me. I really don/t see a lot of oil. Like I said there is grease, like wheel bearing grease on the brake springs. Everything is new with less than 200 miles driven. Maybe the guy I had do this got a little carried away with the wheel bearing grease on that side. I'm going to clean it up and see if there is still a problem. Passenger side is good. Thanks for your info.



 
B_Man 
Contributor
Posts: 133

Reg: 03-02-10
07-12-18 08:14 AM - Post#2739773    
    In response to YOUNG57

Your info is appreciated.



 
YOUNG57 
Frequent Contributor
Posts: 1049

Loc: Tennessee
Reg: 12-06-10
07-12-18 06:03 PM - Post#2739802    
    In response to B_Man

Let us know what you find

The PO may have packed those bearing (57s’ are open to the inside) with wheel bearing grease before installing the axles and their bearings into the differential housing for break-in purposes but it would be on and stay inside the housing and not show up in the brake area.

He may have also greased the bearing area side the differential housing to ease installation of the bearing and its O-ring but the O-ring will wipe and seal any grease inside the housing.




 
B_Man 
Contributor
Posts: 133

Reg: 03-02-10
07-14-18 08:24 AM - Post#2739954    
    In response to YOUNG57

Thanks to everyone. When I get it going again I'm going to clean everything, check the rear end grease, drive it for a while and check it again.



 

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