CSK 911 C4S

That's interesting that Porsche didn't powdercoat them like the red calipers.

STG

Not your fault. Porsche is just going the cheap route. You can even see discoloration of your calipers which others have complained about. I guess buying a $100K base model isn't worthy of a better finish

Guards_Red_991

Porsche is not going the cheap route... This is a problem on every model, I've read about 993, 996 and my 997 suffered from it. Even Ferraris and McLarens suffer from it. This is the owner's fault, not Porsche.

Stop spraying harsh chemicals, not necessary. Good old soap and water will do the trick. Leave the chemicals for Nissans and Hyundais.

911-TOUR

^^^ Affirmative. My 993 had the same problem which was delt with by the PO before I bought it by sending them off to be refinished with a higher-quality paint. 17 years later, it was about due again when I sold it.

Ryan52589

Guards_Red_991

No problem... Ultimately you can refinish your calipers. I did it on my 997 and freaking loved it.

mikem1

I bought replacement bolts for the base Carrera calipers. I was intending to paint them and then replace the rusted ones on my car. I thought the bolts were torx but they aren’t. Looks like they have a 12 spline head but I can’t seem to find the proper socket anywhere. Maybe this was done for security purposes since I think these bolts essentially hold the brake pads in place? Anyway, if anyone knows what tool to use and can provide a link on where to buy it, that would be great! By the way, the part number is: WHT-008-689.

Rich_Jenkins

Might be this one:

https://www.suncoastparts.com/product/SKU990.html

eicweiss

suncoastparts.com. SKU990. $42.50 plus shipping. PM me and I can mail it to you and you can mail it back if you don't want to purchase.

mikem1

Thanks, appreciate the help! And do you happen to know the torque spec for the bolts?

Ryan52589

Just FYI, you do not need to remove that bolt to replace the pads. Pull the two caliper bolts listed as #10 in the photo above, take off the caliper and you can slide the pads off the retaining pins. Buy new caliper bolts. I’ve done all 4 corners this way. I painted those spline drive bolts in place with heat paint and turned out good. I also bought the socket and never used it..

mikem1

Thanks, I just figured it would be easier to paint the new bolts with high temp paint while they are off the car and then swap them. Seems hard to remove the rust and paint them while mounted on the calipers especially on the front where they are recessed.

Ryan52589

Gotcha! Does make it easier. I believe torque spec is 22 ft/lb for that retaining pin, if anyone wants to confirm that.

seven1eight

I know this thread is really really old, but this is the only thread or article or video or anything on the internet that definitively answers if that tool is required to do pads or not... on a 4cyl Cayman S.

The 718 Cayman S (not base!) shares these specific calipers with the 991.2 base. I've found all sorts of DIY walkthroughs and videos for base or non-718 caymans, and s+ 991.2's but I haven't been able to find any specifically the 991.2 base/718 Cayman S. There are a couple of posts on 718forum asking about the caliper socket on suncoast with a bunch of mixed replies and people stating emphatically that you DO need it for the brakes on the 718 S/GTS. Weirdly a thread about painting your calipers on a totally different car is the only one that explicitly answers that question, even if no one mentioned the 718S.

polobai

If they are the same as the 991.2 base, you don’t need the socket. Just remove the caliper and pull the pads.