Brake Calaper rebuild

37chief · Oct 10, 2017

When assembling a two piston caliper, is it easier to use a assembly lube when assembling the pistons past the rubber seals? It seams brake fluid isn't very slippery. Any recommendations? Stan

dr sportster · Oct 10, 2017

Any manual I have ever seen would say only brake fluid should be used.

Mike M · Oct 10, 2017

I would be careful what you use as some stuff is not compatible with brake seals.
Is there a step in your bore that maybe it needs a special tool to install ? On my 81 F350 when removing them I had one heck of a time as one came out and then I could not get it back in to put air pressure in it again to blow out the other one. I forget why ? as maybe it had a step in it ? They were pretty rusty and had bad pistons too so I got NAPA remans.
I have had people tell me they install them with air pressure too ? They hold them there and blow air and then when pressure is off they supposedly get sucked in ? Never seen it done though ?

gab · Oct 10, 2017

All I ever used was brake fluid.

Arvin Haslem · Oct 10, 2017

Don't use anything other than brake fluid.

MARK ROBKE · Oct 10, 2017

If you use ANY grease on the calipers seals,they will SWELL and you will have stuck caliper piston(s). For what it's worth,I think you are way better off with reman,time and money wise.I always buy high end parts,and never have had any problems.Mark

Duner Wi · Oct 10, 2017

Maybe this stuff.
http://www.redrubbergrease.com/

rustred · Oct 10, 2017

grease and oil with brakes is a big NO NO., as they fight! oil on a brake shoe and it skids, oil on the rubbers and they swell. just like oil on a clutch it jumps. brake fluid is your lube.

37chief · Oct 10, 2017

I know oil, or grease isn't for any brake internals. I read some use silicone designed for brake rubber, and mixes with brake fluid ok. Looks like brake fluid is the thing to use, since I have no silicone grease. Just thought I would ask. Stan

Duner Wi · Oct 10, 2017

from the red rubber grease website

"To make the assembly of parts easier and ensure their long life, use red rubber grease for lubricating all rubber components of the calipers."

Sprint 6 · Oct 10, 2017

If you would have bought some remans, you'd have it back on the road by now and have a warranty to boot. Those Ford calipers are known for sticking. Put lifers on from you favorite auto joint, then the next time they hang it's on them. I've nevery even had a caliper apart in 23 years of wrenching. I've never even seen a kit for one.

Hobo,NC · Oct 11, 2017

Its probably been 23 years since I built one :lol: I don't see it either you get the hardware with them to boot that's a good thing BTW... Most are offered with the caliper mount 8)

I have this tool Its been used once KD

http://www.triumphexp.com/phorum/read.php?8,1274199

To answer his question use o-ring lube I would use NAPA sil1000 the part number has changed new number 209515 its not as good as the original sil1000. Its great for use on any rubber part less than a drop is all you need are as thin as you can apply it.

jimg.allentown · Oct 11, 2017

Spray silicone lubricant is compatible with brake parts and brake systems. I have used it for years. It doesn't make things swell and leaves no harmful after effects.

Brake Calaper rebuild

37chief

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dr sportster

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Mike M

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gab

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Arvin Haslem

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MARK ROBKE

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Duner Wi

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rustred

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37chief

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Duner Wi

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Sprint 6

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Hobo,NC

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jimg.allentown

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