Clutch Cylinder Rot

So why do the cylinders in my 1988 Toyota pickup rot out
about every 4 years, when the brake cylinders go for 10+?

Anybody?
--
tbl

tbl wrote:[color=blue]
> So why do the cylinders in my 1988 Toyota pickup rot out
> about every 4 years, when the brake cylinders go for 10+?
>
> Anybody?[/color]
Rot?

Are you getting new or quality rebuilds, or rebuilds that aren't so
good? I know, it can be hard to tell until it fails too soon.

Be sure to replace the brake and clutch fluid every two years. It
absorbs moisture, and the moisture can cause deterioration as well
as braking failure during very hot emergency braking.


Ken

tbl;

I've an '85 SR5 with 218K miles. Never replaced any cylinders, fluid etc.
Never had a brake problem. Farmer's Rule applies to the brake system as
far as I'm concerned.

I add fluid when the brake light indicator comes on. Very careful to get
not even a spec of dirt in the system, or in the can I'm adding from. I
think I added fluid about a year ago. No sign of any change in fluid
usage.

California is generally easier on vehicles, but in my case, I have 4 miles
of dirt roads and a fast running 1" deep creek to go over every time I
leave the property and ditto for coming home.

So I have no clue why you need to replace either cyclinders at the
frequency you do. Be interesting to hear what others do.

Richard Harper
Morgan hill, Ca

On Tue, 23 May 2006 09:52:33 -0700, Ken Shelton
<shelton@cablespeed.com> wrote:
[color=blue]
>tbl wrote:[color=green]
>> So why do the cylinders in my 1988 Toyota pickup rot out
>> about every 4 years, when the brake cylinders go for 10+?
>>
>> Anybody?[/color]
>Rot?[/color]


Corrosion-pitting causing the piston seals to not seal.

[color=blue]
>Are you getting new or quality rebuilds, or rebuilds that aren't so
>good? I know, it can be hard to tell until it fails too soon.[/color]


Up until yesterday, I've used only Toyota stuff from Toyota
dealer (expensive!).

[color=blue]
>Be sure to replace the brake and clutch fluid every two years. It
>absorbs moisture, and the moisture can cause deterioration as well
>as braking failure during very hot emergency braking.[/color]


I'm sure that the first failure was after about 5 years with
no fluid changes. Surprisingly, it was the master that went
first.

But since then, I've changed fluids every two years, + or -
a few months. The reservoir cap seems to have a breather.
Wouldn't this cause the fluid to "wet" pretty quickly? I
think I'll start changing it every year.

Thanks for the reply.
--
tbl

On Tue, 23 May 2006 17:31:11 -0400, "rdhrdh"
<rdharper@starband.net> wrote:
[color=blue]
>tbl;
>
>I've an '85 SR5 with 218K miles. Never replaced any cylinders, fluid etc.
> Never had a brake problem.[/color]


Hmmm.

[color=blue]
>I add fluid when the brake light indicator comes on. Very careful to get
>not even a spec of dirt in the system, or in the can I'm adding from. I
>think I added fluid about a year ago. No sign of any change in fluid
>usage.
>
>California is generally easier on vehicles, but in my case, I have 4 miles
>of dirt roads and a fast running 1" deep creek to go over every time I
>leave the property and ditto for coming home.[/color]


I'm closer to Folsom than you, but our climates are probably
pretty close.

[color=blue]
>So I have no clue why you need to replace either cyclinders at the
>frequency you do.[/color]


Without this clutch linkage problem and the Toyota starter
contacts problem, this would likely be one of the most
trouble-free vehicles on the road!
--
tbl

I had the same problem.

I would replace the clutch piston evevy 4 years, then after re-reading my
manual I discovered that the piston should be greased during reassembly. I
used a high quality synthetic grease and haven't had problems in 5 or 6
years

Steve

"tbl" <hate@ThatSpam.net> wrote in message
news:hfe6725prfqmnuamc48us20dup26623uq3@4ax.com...[color=blue]
> So why do the cylinders in my 1988 Toyota pickup rot out
> about every 4 years, when the brake cylinders go for 10+?
>
> Anybody?
> --
> tbl[/color]