Wilwood seals leaking

[Skip Fix]

Well I added Wilwood front kits to the Camaro/IA2 Pontiac motor drag project and it has been sitting while I work on other things but the Wilwood seals have been weeping grease moisture down on the rotors. Will this resolve once it starts turning when rolling more? New seals on the new hubs and no scoring on the spindle.

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No ideas??

[wmhjr]

Call Wilwood? Not sure of anything else. Not ignoring you.

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Just figured with all the brake folks heresomeone would have had this happen, even on a factory rotor. Either bad seals and I need new ones or since it sitting and not spinning the grease around it should be fine once moving seems the two logical options. The bearings look like factory #s so I assume Wilwood uses factory sized seals also.

[Skip Fix]

Wilwood Tech out there? Called and left a message and no call back yet on the tech line.

[Apogee]

Some single-lip seals will tend to seep lube over time due to the design of the seal, however I wouldn't expect that to occur with any modern double-lip seal design unless there was something wrong with either the seal itself or the sealing surface. I'm guessing these are the Wilwood hubs you have for the 79-81 GMTS application with SET6 inner and SET34 outer wheel bearings.

On page 5 of this document, they list all of the seals used with their hubs and the corresponding Wilwood part numbers, although I would imagine that they all cross to an off-the-shelf CR/Timken/National/etc part number as well. For your hubs it looks like the Wilwood #380-1165 seal is what you should have.

HTH,
Tobin
KORE3

[wmhjr]

Wilwood Tech out there? Called and left a message and no call back yet on the tech line.

You still haven't been able to reach them? Pretty much without exception, so long as I call during their PST hours, I may have to wait a few minutes but I get a tech. Now I will say that sometimes I get an extremely knowledgeable tech, and somtimes....... Uhhh, maybe it would be better to just call back again.

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Thanks Tobin. I think I'll probably have to pull them and try some new seals. Hate to have the grease foul the pads and try to stop at 130+! I'll try a tech call again also.

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Finally got someone today-said they shouldn't leak. Had not other comments about their new seals were doing it. Probably easier to go to Oreilley to get some vs messing with them as warranty.

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Pulled the wheel and caliper off this weekend and definitely some grease on the outside of the seal. Now is it leaking or just got some smeared during install of excessive between innner bearing and seal. I am going to try and wipe it down really good and see if it still gets moist. Grease on the outside bearing area doesn't look separated any.

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OK pulled the hub off today to look real good. Two issues I think. The Wilwood seal is a National 40401 and is a single lip seal-factory rotor uses a double lip seal. When I measure the one still on it sure looks like the seal lip is riding on just the bevel of the spindle surface and not on the area it should ride on. So maybe not driving them in completely so it does ride where it should. It does feel tight once on the right area of the spindle. They are 0.095 narrower than the factory seals so can't just tap one of those in unless I put it in a lathe and cut the hub hole to a larger OD. Be nice if there was a double lipped seal the correct OD to use.

Another weird thing the back outer part of the rubber is rough-like rough leather. So it could be wicking past some of those "fingers" and not sealing well either. My friend put those on at his shop so I didn't look that close when I pulled them out of the box with teh kit

O reileydidn;t have them in stock so will be tomorrow to get them to see if they are rough when new.

[Skip Fix]

Bought some new seals-they ARE leather looking. Kind of wierd. I'm going to try and not hammer them in as far so they ride more on the correct surface. Anyone else had an issue with Wilwood seals?