[danWI]

well, there comes a time when "cleaning up the piston and reinstalling" doesnt work. i am tired of my front piston (once again) sticking in the bore after sittign over the winter break. SO, anyone have a source for anew caliper piston? the stainless steel ones are tempting.... TIA, danWI

 

[Bird76Mojo]

The stainless ones on Ebay are the only option in my opinion. The quality of the sellers nephews machine work is AWESOME! They make NICE parts. I ordered 2 and asked him to throw in seals as well. They shipped them out to me quickstyle! Even included two little baggies of silicon grease for installation.

Best of all, no more major corrosion if using the proper brake fluid. No chrome plating on the piston to get rough/flakey either.

GB :mrgreen:

 

[danWI]

do you have a link for this seller? appreciate the help man! danWI

The stainless ones on Ebay are the only option in my opinion. The quality of the sellers nephews machine work is AWESOME! They make NICE parts.

 

[Bird76Mojo]

Like I said they're pricey but very nice quality parts. He can supply you with essentially an all new brake system if needed. Here's the seller: http://myworld.ebay.com/ebaymotors/dgs38/

Let him know the exact year and check to be sure that the caliper has'nt been changed out to a different model/year too. There are differences in the pistons that his nephew machines.

GB :mrgreen:

 

[danWI]

Thanks for the link! His info woudl be a nice addition to the links page.

You do bring up an interesting question tho... how does one identify the year for the DOHC caliper? When i got my 450, she was a "put-together" with CL carbs, K5 gas tank, etal. She's currently set up (and VIN'd) as a K3, 1st year for the disc brake. danWI

 

[tbpmusic]

... how does one identify the year for the DOHC caliper? danWI

A look at the fiches shows this -

First K3/K4 - externally, note the fins on the caliper body, and the thinner "B" side- different arm and mounting. Main caliper bolts go in from rider's right.
Piston setup is all different internally.

Then K5-K7 No fins, bolts from rider's left.

 

[danWI]

Thanks Bill! thats pretty straight foreward then. I'll check the caliper this weekend. now my big concern is that my 450 is becoming to CLASSY for me... too shiny and runnign smooth is a scary thought :shock:

and for those interested in stainless replacement: its looking like i can get a caliper rebuild kit with stainless piston for $100+ change. this is not too bad since it only need to be changed once in my lifetime!

 

[danWI]

I was just sent this lnk from a friend concerning a phenolic front brake piston for my CB450. Anyone have used these, comments, suggestions, and TIA! danWI

http://cgi.ebay.com/ebaymotors/ws/e...&category0=&fvi=1&item=320346662310&viewitem=

 

[Bird76Mojo]

Looks like a cheaper alternative to the stainless versions. Either one would be more desireable than the stocker. I have read that the ?plastic? versions don't transfer heat to the brake fluid like any other pistons available. I'm no engineer though, so your guess is as good as mine on that.

GB :mrgreen:

 

[mack]

CMS has them for $43, David Silver Spares for $35. I'd give the phenolic piston a shot for the price. Depending on how you treat your bike, using the original should outlast your ownership of the bike and then some. My CB500T has the original piston and it's in great shape.