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-   -   I go through wheel cylinders like I go through socks (https://www.toyota-4runner.org/classic-t4rs/283874-i-go-through-wheel-cylinders-like-i-go-through-socks.html)

jay333 03-09-2020 12:23 AM
I go through wheel cylinders like I go through socks
 
1990 4Runner, rear wheel cylinder leaking like crazy, buy new cylinder and install - begins leaking almost immediately. Get replacement wheel cylinder and install - 5 months later and its leaking again. Got replacement wheel cyliinder today and installed. Not putting that many miles on this vehicle. The brand they have been giving me is Raybestos. Today I ask if there is anything else - they say, thats the best there is. Really? Am I missing something? Is there some other problem the vehicle may have that is causing this wheel cylinder to fail? Any thoughts? Or, is it possible that Raybestos is just that bad?

wcjeep 03-09-2020 12:43 AM
Are you seeing normal wear on the front brake pads? Wonder if the front/rear bias is wrong? Too much pressure to the rear?

jay333 03-09-2020 02:31 AM
Quote:
Originally Posted by wcjeep (Post 3455397)
Are you seeing normal wear on the front brake pads? Wonder if the front/rear bias is wrong? Too much pressure to the rear?
Actually, now that you mention it I did notice the front pads maybe weren't wearing down as expected. So how is this front/rear bias adjusted? Or could it come about because maybe the calipers on the front are not functioning as they should?

Melrose 4r 03-09-2020 10:52 PM
I went through some brake cylinders on my Camaro that leaked right out of the box. Total crap, made in China. Only part i have ever bought that was so bad it wouldnt work.

jay333 03-10-2020 12:39 AM
Quote:
Originally Posted by Melrose 4r (Post 3455886)
I went through some brake cylinders on my Camaro that leaked right out of the box. Total crap, made in China. Only part i have ever bought that was so bad it wouldnt work.
Yes, my guess is that these are also made in China as are most things.

RonJR 03-10-2020 12:07 PM
You might try OEM parts from a place like Lakeland Toyota. (aka toyotapartsoverstock.com). They have decent prices and great service. You can't beat the OEM Toyota parts for quality.

jay333 03-22-2020 06:39 PM
Quote:
Originally Posted by wcjeep (Post 3455397)
Are you seeing normal wear on the front brake pads? Wonder if the front/rear bias is wrong? Too much pressure to the rear?
Ok, the third one (the auto supply place keeps giving me replacement ones) is leaking shortly after installation. To your point about the front/rear being unbalanced - do you think it might be the load sensing/proportioning valve (evidently part # 47910-35470 for my vehicle)?


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