Porsche Brembo 996 BBK Conversion-- let's figure out how to fix the dust boots/seals

[bavarian3]

Bringing this back up. I have a pair of rear calipers going on that I bought used in so-so shape. They definitely have miles on them due to the paint fading but the dust seals look good.

Does anyone think I should bother with a kit like this before refinishing and plugging them in?

[Nate047]

You probably don’t need new pistons, wouldn’t hurt though I guess just as long as those are known to be high quality and the exact right size with no variations. I would (and did) replace everything else if they’re in rough shape. Cross over pipes, bleeders, and pins included.

[OPS]

The only time I recommend replacing pistons is if they have scoring longitudinally beyond the piston seal or if there are any sharp edges which would cause failure (pitting ect).

Hope that helps!

[bavarian3]

You probably don’t need new pistons, wouldn’t hurt though I guess just as long as those are known to be high quality and the exact right size with no variations. I would (and did) replace everything else if they’re in rough shape. Cross over pipes, bleeders, and pins included.

Thank you.

The only time I recommend replacing pistons is if they have scoring longitudinally beyond the piston seal or if there are any sharp edges which would cause failure (pitting ect).

Hope that helps!

Do you ever see the piston seals fail? That's the main thing I was thinking to take care of while the calipers are detached from any fluid lines.

Any idea when the 28/30 seals kit will be back in stock?

[OPS]

I personally have never seen a piston seal fail. Failure will occur when the installation was incorrect (twisted or not seated correctly) or extreme lack of maintenance on the brake fluid. Met with Frenkit at PRI this last week and said I need the kits asap. They should be in Chicago on Friday however I am going to be on vacation spending time with my family until December 29th. I will be able to ship them out then.

Mike
OPS