brake fading

[barrie nunn]

i fitted new disks and pagid pads to the front and im geting brake fade after ive had my clog down the originals were brembo should i change back.. or any ideas

cheers

 

[John H]

I'd check that they don't just need bled first.

 

[barrie nunn]

i changed them a couple of months ago but its only when i get to warp factor 7 they fade

 

[John H]

Pagid pads should be OK (I'm sure Porsche use them as OEM) but what nature of disks have you got? I got talked into using aftermarket disks on my 964 some years ago and was never happy with them.

 

[Buddy]

I've used Pagid on my 944 turbo and a 968 and as John says they were OEM. Likewise bleed first and check on what discs you have but most Cayman discs I've seen for sale are Sebro or Zimmerman again once OEM. Check next if pads are moving freely in the caliper slides, I have heard on earlier 4 pots of corrosion behind the slides lifting them and making the pads tight so if your pads are getting too hot could be getting tight, it means stripping the plates and getting them scraped down and repainted to prevent further corrosion then new plates. the securing screws can be a sod to shift.

 

[John H]

ORIGINAL: Buddy Likewise bleed first and check on what discs you have but most Cayman discs I've seen for sale are Sebro or Zimmerman again once OEM.

I have used both Sebro and Zimmerman disks on older Porsches and was never really happy with either of them. I know they claim to be OEM, but I am sceptical that the aftermarket ones really are the same spec. Suffice to say I wouldn't use them on a Cayman

ORIGINAL: Buddy Check next if pads are moving freely in the caliper slides, I have heard on earlier 4 pots of corrosion behind the slides lifting them and making the pads tight so if your pads are getting too hot could be getting tight, it means stripping the plates and getting them scraped down and repainted to prevent further corrosion then new plates. the securing screws can be a sod to shift.

Unlikely to be this. The modern calipers are a different design, and as far as I know do not suffer from the dreaded "plate lift". I have changed the front pads in my Cayman and they were an easy fit, not like the older calipers which were a sod. I'd still bleed them first before I did anything else, and be aware there are two bleed nipples per caliper on the Caymans brakes, the rear nipple is none too obvious.