Anyone know of a good method to get seized up brake wheel cylinders apart? These have been sitting for 25 or 30 years(or more)!!! I think I need a good solution to soak them in for a few days, but have yet to find anything that works. Pushing the rears out by force probably won't be too hard, but the fronts can't be forced out.
Thanks,
Ted


        
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Compressed air worked for me!

Dan
'64 Das Boot

Tedredamphi wrote:




        
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__________________
Dan
AKA DrNoose

1964 Amphicar
AKA Das Boot

Mine are REALLY seized up! Compressed air doesn't budge the wheel cylinder pistons.
Ted


        
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Penetrating fluid both sides for a few days.

Then put them in the freezer for a few nights and after warm them up a bit by dropping them in near boiling water. Do this a few times.

Then compressed air or water.

Watch the bleed valve, need to make sure that works and if it breaks it pretty much writes off the cylinder anyway.

David C


----- Original Message -----
From: Tedredamphi
To: david@manbus.com
Sent: Saturday, April 12, 2008 5:35 PM
Subject: RE: [General Amphicar Discussion-t-19939] Re: Seized up Brake Wheel Cylinders


Mine are REALLY seized up! Compressed air doesn't budge the wheel cylinder pistons.
Ted


        
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GORDON IMPORTS INC.. The world's largest source of Amphicar parts and accessories. Visit our new website today.

Take your cylinder to a place that sells grease zerks and get the proper one that fits where the brake line went, then pump in grease from a grease gun and it will come apart. As I proof read this it occurred to me that maybe I put the grease zerk in where the bleeder screw was and plugged where the line went in, either way---grease pressure will force it apart.

Most folks think you need to have them bored and a new sleave pressed in but in all my life, I have never had one that was not able to be saved by only honing with a drill.

If yours spent its life in salt water then it may be too bad to save


        
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On the amphicar, it is still worth having them resleeved with stainless or brass so that they are not seizing up on you every few years.

I seem to recall heating them with a torch some years back to get the bleeder valves out.


        
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Ted
The best stuff I have used is aero kroil www.kanolabs.com it is amazing stuff.

Jeff


To: jeffreyd_7@hotmail.comSubject: [General Amphicar Discussion-t-19939] Seized up Brake Wheel CylindersDate: Sat, 12 Apr 2008 11:31:25 -0400From:



Anyone know of a good method to get seized up brake wheel cylinders apart? These have been sitting for 25 or 30 years(or more)!!! I think I need a good solution to soak them in for a few days, but have yet to find anything that works. Pushing the rears out by force probably won't be too hard, but the fronts can't be forced out.Thanks,Ted


        
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GORDON IMPORTS INC.. The world's largest source of Amphicar parts and accessories. Visit our new website today.

Send them all to a place like White Post. They unstick, rebuild and sleeve them and give them a LIFETIME guarantee.
Your brakes will fail again, you can count on that. If you keep your paper work White Post will rebuild them again no problem forever.
White Post Restorations
If you swim your car even once a week for two years, you will need a brake job. That's just the it is, but your Amphi sure is worth the effort. You can get GREAT replacement shoes from Gord in Canada. Tommy in Tampa
in Tampa


        
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GORDON IMPORTS INC.. The world's largest source of Amphicar parts and accessories. Visit our new website today.

Packing waterproof brake grease under the dust caps is necessary to
prevent oxidation and rusting of the pistons and cylinders.

Permatex Ultra Disc Brake Caliper Lube works well for this:

http://www.permatex.com/products/Aut...per_Lube_1.htm

Ken Chambers, CA
'64 Red


On Apr 13, 2008, at 6:19 AM, Tommy in Tampa wrote:




        
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Has anybody had their brake wheel cylinders rebuilt by White Post lately that could tell me about how much they charge? If not I'll just call them Monday.
Thanks,
Ted


        
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GORDON IMPORTS INC.. The world's largest source of Amphicar parts and accessories. Visit our new website today.