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Wilwood Rear Caliper Leak
I have brake fluid leaking from my driver's side rear caliper. It's a Wilwood solid axle style ordered with my kit. Does anyone know if this can be easily rebuilt or if I need to send it back to Wilwood? I've verified the leak is not coming from the banjo bolt or the bleeder screw, but from the piston area.
Dave
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Senior Member
I think a call to Wilwood, could give you the answer.
Mrk III, 331 stroker, Borla stack injection, T5, 3:55 IRS, Power steering and brakes. Kleiner body & paint
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Originally Posted by
rich grsc
I think a call to Wilwood, could give you the answer.
Of course that would be the obvious answer, but I'd still like any first-hand experience from others if anyone has any to offer.
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Senior Member
I had weeping leaks when I first set everything up, tightened the fittings a little and that worked. Sounds like you had working brakes and they started to leak though.
Good luck.
FFR Roadster Delivered 9/16/21
Forte 427 Fuel Injected with TKX Transmission
Forte's Axle
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Yep. Noticed fluid on the inner wheel. Cleaned the caliper and bracket and checked a day later to find fluid on the bracket. The banjo and bleeder are dry.
As Rich suggested, I called Willwood and this must be repaired in-house by them. So, I get to remove the caliper and send it in. Should be around two weeks once they receive it to have it on its way back to me. They charge $40 + parts and return shipping.
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I noticed my rear calipers are just seeping a bit around the pistons. I'll take a pic and send it to Wilwood and see if they want to do anything with them.
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Senior Member
Originally Posted by
Papa
Yep. Noticed fluid on the inner wheel. Cleaned the caliper and bracket and checked a day later to find fluid on the bracket. The banjo and bleeder are dry.
As Rich suggested, I called Willwood and this must be repaired in-house by them. So, I get to remove the caliper and send it in. Should be around two weeks once they receive it to have it on its way back to me. They charge $40 + parts and return shipping.
They should be paying you. Under no circumstances should a caliper fail that early. Especially one as expensive as that one. I have multiple cars that are 100k plus miles on the original calipers that have never leaked.
MK4 #10008 - Ordered 10/06/20, Delivered 03/03/21, First Start 7/22/21, First Go Kart 7/24/21
Paint by Metal Morphous 5/14/22, Legally registered 6/8/22, Graduated 7/20/22
Build Thread
https://thefactoryfiveforum.com/show...been-delivered
Complete Kit, Ford 306, Sniper/Dual Sync, T5, Hydraulic clutch
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Originally Posted by
Blitzboy54
They should be paying you. Under no circumstances should a caliper fail that early. Especially one as expensive as that one. I have multiple cars that are 100k plus miles on the original calipers that have never leaked.
I feel the same way, but Wilwood doesn't provide any warranty on their parts. I assume that is because they assume that the parts will be used in racing or high-performance applications.
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Senior Member
Welcome to the world of race car parts.
Not much warranty. And don't expect much to last 100,000 miles either.
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Originally Posted by
Papa
I have brake fluid leaking from my driver's side rear caliper. It's a Wilwood solid axle style ordered with my kit. Does anyone know if this can be easily rebuilt or if I need to send it back to Wilwood? I've verified the leak is not coming from the banjo bolt or the bleeder screw, but from the piston area.
Dave
Dave,
I raced cars with Wilwood calipers for years. Likely the o-ring wasn’t seated in assembly. Unless the calipers are corroded it’s an easy rebuild. As others have mentioned check hoses and fitting first. Pop the piston out, place the o-ring in the caliper groove and push the piston back in. It’s a little messy but easy. A complete o-ring kit costs less then $15 dollars. Check out the link below.
https://www.wilwood.com/pdf/howtosto...er_Rebuild.pdf
Rich
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Rich,
The caliper that is leaking is a CPB style that they don't offer a rebuild kit for, I asked. I will let them rebuild it.
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Originally Posted by
Papa
Rich,
The caliper that is leaking is a CPB style that they don't offer a rebuild kit for, I asked. I will let them rebuild it.
Sorry to hear it. Didn’t understand that from your original post. I’ve got an older style separate e-brake set up. Hope they can turn it around for you promptly.