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Discussion Starter · #1 ·
well the piston in my caliper is stuck solid, and i cant seem to get it out so i would like to buy a single piston caliper that is working properly/piston not stuck

it is getting warmer and i want to at least take my project cb450 for a spin around the block

the cheaper the better, i am on a budget

please let me know what you have

played with the caliper today and got the piston out using the hydraulic pressure from the master cylinder and a hammer, so i dont need a caliper now :D
 

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A couple days of soaking with a penetrating oil (BLASTER ;) ) may solve your problem. Then blow it out with compressed air (a rubber tipped air nozzle helps seal well) blowing through where the brake line screws in. Leave the bleeder screw tightened. Watch out for the piston as it may fly with FORCE, right across the shop! Some find a way to attach a grease gun to the caliper and pump it out with more hydraulic force using the grease gun. Others have drilled a hole into the piston and threaded in a screw or bolt. Then used a puller, visegrips, or slide hammer to remove the piston.

If it comes out just scrub the inside well with a soft brush or scotch brite pad, making sure to clean the seal area very well (may require some picking around), buy a new seal (cheap) and piston (not so cheap). I HIGHLY recommend the Ebay seller that sells the stainless pistons for the calipers. He knows his equipment, and machines very high quality parts! Actually his nephew does it. I bought two of em though. ;)

Let us know what you decide, as you're pretty unlikely to find a good working caliper that's going to keep its seal and work properly for very long.

GB :mrgreen:
 

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Old mechanic's trick (old trick, and old mechanic too) -

Hook up a grease gun to the input line or bleeder valve somehow and start pumping - this usually works.....
Safer than compressed air, too - it becomes a missile when using air - don't ask how I know that (duck !!!).
 

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Discussion Starter · #4 ·
thanks for the tips guy, i played with the caliper some more today and got the piston out by using the hydraulic pressure from the master cylinder and a ball peen hammer :D

the piston was not rusted as bad as i figured it would be, not hardly any rust on it, but i did have some sand in between the brake pad back and the piston, maybe someone had taken my 450 off roading in some sand before i bought it :)
 

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You'll be surprised at what can come out of these old bikes. Dead animals, sand, money, hair (EEEww), bic lighters.... :lol: That "sand" may just be crystalized brake fluid. You may find that the piston will rust up again and foul up the caliper in a season or three.. Those stainless pistons really are worth every penny! He'll even send you a new seal with it, and some silicone based grease.

I mentioned that greasegun method, but my post was so long it probably made people NOT want to read it all.. :roll:

Glad to hear you're having some good luck. Keep us posted.

GB :mrgreen:
 

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Discussion Starter · #6 ·
Bird76Mojo said:
You'll be surprised at what can come out of these old bikes. Dead animals, sand, money, hair (EEEww), bic lighters.... :lol: That "sand" may just be crystalized brake fluid. You may find that the piston will rust up again and foul up the caliper in a season or three.. Those stainless pistons really are worth every penny! He'll even send you a new seal with it, and some silicone based grease.

I mentioned that greasegun method, but my post was so long it probably made people NOT want to read it all.. :roll:

Glad to hear you're having some good luck. Keep us posted.

GB :mrgreen:
yep, i have found all sorts of stuff in old vehicles that i have bought

i had hair in the tank badges of this honda, it looked like dog hair luckily and the guy i bought it from had dogs, i am used to dog hair, we have 2 dogs
 
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