Rear wheel cylinder leaking

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bossbob
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Rear wheel cylinder leaking

Post by bossbob » Mon Apr 29, 2019 12:50 pm

Where can I get a reasonably priced wheel cylinder kit, what are the options on rear cylinders. I did a search but .........

Thanks in advance.
68 Roadster 1600
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63.5 Galaxy Conv. 427 Dual Carb, 4 spd
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Re: Rear wheel cylinder leaking

Post by S Allen » Mon Apr 29, 2019 4:27 pm

Get the old one re-sleeved with stainless by Karp and it will never leak again. $85 rebuilt. $60 and you rebuild. Not much to the rebuild but you will pay more than $25 for the rebuild kit.


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Re: Rear wheel cylinder leaking

Post by C.Costine » Mon Apr 29, 2019 5:24 pm

Bob, this is why you need to bleed your brakes at least every-other year.
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AidanDawn2000
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Re: Rear wheel cylinder leaking

Post by AidanDawn2000 » Mon Apr 29, 2019 9:00 pm

Not recommended but you can take a fine wire brush and smooth out the walls if they are a bit pitted and they might not leak any more... worked for me in a pinch once
Oil a little low? Time to get a longer dipstick:)
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Re: Rear wheel cylinder leaking

Post by notoptoy » Mon Apr 29, 2019 9:33 pm

A brake cylinder hone is available at most autoparts places, cheap and do a great job if the cylinders are not too deeply pitted. One like this is typically around $16 and you can buy replacement stones cheap. Great tool to have for anything with a round Inside diameter that you want to smooth out.
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Re: Rear wheel cylinder leaking

Post by bossbob » Mon Apr 29, 2019 9:47 pm

Thanks guys, I have a cylinder hone, just need the seal kit. I did the front brakes a few months ago, the car hasn't left the garage yet. Karps is $95 each.
68 Roadster 1600
70 Boss 302
65 K-Code Fastback
69 Mach 1 393 Stroker 5 spd
63.5 Galaxy Conv. 427 Dual Carb, 4 spd
72 Ranchero
65 GT Coupe

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notoptoy
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Re: Rear wheel cylinder leaking

Post by notoptoy » Mon Apr 29, 2019 9:49 pm

So several of the vendors offer kits, check out the vendor links page: viewtopic.php?f=54&t=15263
"When all else fails, force prevails!" Ummm, we're gonna need a bigger hammer here.

67.5 SPL311 H20 w/5 speed
65 Impala Convertible
2017 C43 AMG

bossbob
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Re: Rear wheel cylinder leaking

Post by bossbob » Wed May 01, 2019 6:25 pm

Where is the size of the cylinder stamped, can I see it from outside the drum by jacking up the car, or do I have to pull the drum off and pull the cylinder to inspect. Just thought I'd get a head start on ordering the parts.

It's a 1968

Thanks again,
68 Roadster 1600
70 Boss 302
65 K-Code Fastback
69 Mach 1 393 Stroker 5 spd
63.5 Galaxy Conv. 427 Dual Carb, 4 spd
72 Ranchero
65 GT Coupe

bossbob
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Re: Rear wheel cylinder leaking

Post by bossbob » Wed May 01, 2019 6:29 pm

Never mind, found a picture. Looks like I have to the wheel off to see the stamp.
68 Roadster 1600
70 Boss 302
65 K-Code Fastback
69 Mach 1 393 Stroker 5 spd
63.5 Galaxy Conv. 427 Dual Carb, 4 spd
72 Ranchero
65 GT Coupe

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Solex68
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Re: Rear wheel cylinder leaking

Post by Solex68 » Wed May 01, 2019 7:08 pm

Curious....where are you located in So. Cal? I am in Laguna Hills.
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Re: Rear wheel cylinder leaking

Post by bossbob » Wed May 01, 2019 7:22 pm

Looks like it is stamped with 15/16, all the part descriptions show this for a 67 and older whereas the 67.5 - 70 show's 3/4.

Solex, I used to live in Laguna Hills, up above the DMV. Moved to Corona in 05, and just moved to the Central Coast. I had the pleasure of meeting a couple roadster guys over the year down in OC.
68 Roadster 1600
70 Boss 302
65 K-Code Fastback
69 Mach 1 393 Stroker 5 spd
63.5 Galaxy Conv. 427 Dual Carb, 4 spd
72 Ranchero
65 GT Coupe

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Linda
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Re: Rear wheel cylinder leaking

Post by Linda » Wed May 01, 2019 10:20 pm

I think it would be 13/16.
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Re: Rear wheel cylinder leaking

Post by bossbob » Thu May 02, 2019 10:51 am

Please correct me if I'm wrong, I am looking at this page http://www.datsun-roadster-parts.com/pr ... keswheels/ and reading the description for the kits, looks like 13/16 is for up to 67, 3/4 after 67.5.

I can't really read the size on the cylinders I have, but I can tell it's not 3/4. And of course the brake lines are frozen to the cylinders, so it will be a project to get them off.

They have parts for cylinder sizes of 11/16, 13/16, 15/16, and 3/4 ???
68 Roadster 1600
70 Boss 302
65 K-Code Fastback
69 Mach 1 393 Stroker 5 spd
63.5 Galaxy Conv. 427 Dual Carb, 4 spd
72 Ranchero
65 GT Coupe

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Re: Rear wheel cylinder leaking

Post by jamesw » Thu May 02, 2019 4:43 pm

I remember you used to be able to walk into Napa and buy the kits. They were a "parts interchange" from another car but they were the right size. Talk about a messy job.

Cheers
James
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Gregs672000
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Re: Rear wheel cylinder leaking

Post by Gregs672000 » Thu May 02, 2019 5:24 pm

Flair nut wrenches work much better on such frozen brake lines and may keep you from stripping the nut. Worth trying.
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