Topic: Is this brake piston any good?

[Nayl]

Bought a rebuild kit for the rear brake on my F1, which included two stainless steel pistons.  Pistons came packed loose together inside a plastic bag, which probably accounts for the various small divots in the working surfaces.  These aren't huge, but it seems to me that they are going to cause the brakes to leak constantly as the pistons fail to mate with the seals.  Am I wrong?

[MoMo]

Are those indentations I see?  If so, I"d can it

[Nayl]

Yep, there's a diagonal one about 2/3 of the way up, and a horizontal one at the midline.  Hoping the Ebay store I got this from will do the right thing on this.  Not the first time I've had issues with ebay parts, but this will definitely be the most expensive piece of junk I've bought.

[Trad]

Can I ask what vendor packaged those? That's a bummer though.

[tlbranth]

You are not wrong. Return the pistons

[seanbarney41]

geez...really gotta wonder how stainless got dented so easily?...that #$%* is supposed to be hard

[Nayl]

FYI, I got it from these guys - http://www.ebay.com/itm/HONDA-CB750F-GL1000-GOLDWING-REAR-BRAKE-CALIPER-REBUILD-KIT-1975-1977-/161913242984?vxp=mtr&hash=item25b2c80568

Big outfit, high ratings.  All it takes is bad packaging, unfortunately.  The ad describes the material as "304 Stainless" which is the same stuff they make kitchen knives and cooking pots out of.

[Jerry Rxman Griffin aka MuthaF'er]

I got my kit from Sirius Consolidated also, just not on EBay and it was less expensive. It looked great. No problems. Hopefully they will swap you out. I'd be more concerned about the edges of the divots dragging in the bores, otherwise I wouldn't worry too much about leakage past the seal AS LONG AS the positioning of divot vs seal is good. It may be a non-issue.

[Nayl]

Got this message this morning -

Sorry about that, I'll get a new set of pistons out to you today!
   
Chris
   
   
Sirius Consolidated Inc

and already got notification from Fedex that its on the way.  Not bad. 

[MoMo]

I've bought stuff from them and have experienced good customer service if there is a problem

[Powderman]

Being as they are smooth shallow dents the seal would fill the gap and do it's job. The dents are far enough out that pad wear may have the dents exposed before too long. I would have done what you did and replace them anyways because you didn't pay retail fto get damaged parts.