Clutch Cylinder Rot

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

Corrosion-pitting causing the piston seals to not seal.

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

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.

Hmmm.

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

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!

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