NC Wilwood rear BBK

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NC Wilwood rear BBK

Postby johndcrumpton » Thu Feb 28, 2019 1:14 pm

Duplicating this post from Miata.net.... Does anyone have experience installing these?
Fronts are on, no trouble. Rears are on and working except for the parking brake cable.

The replacement cables don't seem to be long enough. The other thing that really seems odd to me is that Wilwood specifically indicates that the driver's side cable is the longer of the two, but the OEM parts were the opposite.

The install is being done by Gran Turismo East in ATL... these guys have always been extremely knowledgeable and professional... so I have no reason the think this is just a case of operator error.

Gran Turismo has already emailed Wilwood about this; no response yet. I thought I would see if anyone here has ideas?

"I am having trouble with the parking brake cables on a 2013 Mazda Miata. The Wilwood cables that we have are about 55" and 63". The instructions clearly say that the driver's side cable is longer but when we pulled the factory cables off of the car, the passenger's side was the longer side. Even still we are also having issues with the clevis that connects the parking brake cable to the parking brake lever arm. I am measuring .150" gap on the parking brake caliper lever arm. The factory PB cable is .170" thick and the Wilwood cables are .190" thick, on the clevis.
The other end of the cables is also incorrect for the car. The cylindrical side that attaches to the balance bar is .312" diameter on the Wilwood cable but the factory end is .387"

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Re: NC Wilwood rear BBK

Postby Brian » Fri Mar 01, 2019 6:59 am

Our head mechanic Rocky likely knows this off top of his head but he is out today, and I am out this morning too. But our Supercharged 2007 with same brakes is on the lift in the shop, can have Ryan take a look later today at ours for which cable is longest, etc.
Brian Goodwin
Good-Win Racing
www.good-win-racing.com
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Re: NC Wilwood rear BBK

Postby johndcrumpton » Fri Mar 01, 2019 7:09 am

Thanks Brian. From the photos, I'm thinking they may be the wrong cables altogether? The eyelet thing (no idea what that's called... clevis?) where they attach to the arm on the parking brake caliper seems too thick to fit in. And on the other end, the that piece at the end of the cable (also don't know what that's called) is clearly not the same size as the OEM part... but it is supposed to attach to the OEM brake lever?
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Re: NC Wilwood rear BBK

Postby Ryan @ GWR » Fri Mar 01, 2019 11:06 am

Keep in mind that Wilwood didn't design and manufacture a new cable for the NC here, they used something off their parts shelf that they already used in their kits for Mustangs, etc. so the "correct" cable isn't going to be an exact match to the NC factory cable in every way.

Will try to get under that car today to verify.
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Re: NC Wilwood rear BBK

Postby johndcrumpton » Mon Mar 04, 2019 9:46 am

It seems to be sorted out. Wilwood said they seem to have a bad run of cables, but it would be 2+ weeks to get a replacement. Gran Turismo is just grinding the ends to make them work. I should have the car back this afternoon and will post some pics of what they had to modify.
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