RE: Porsche Cayman S | PH Fleet

RE: Porsche Cayman S | PH Fleet

Wednesday 8th April 2020

Porsche Cayman S | PH Fleet

Mike reminds himself why he's not a mechanic



Realising the Cayman would miss out on the automatic six-month MOT extension by just one day - its current ticket expired on March 29th - had me calling around the local test centres to find almost all fully booked, presumably by people in the same situation. I managed to get a cancelled slot at a garage that was already doing full isolation, meaning I left the keys in the ignition and waited outside rather than enjoying the ambience of a waiting room filled with six year old motorbike magazines. The Cayman passed, but with an advisory that the rear tyres have minimal tread - and with some graunching noises from the front brakes on the way home reminding me that they were close to the end as well.

I couldn't do much about the tyres by myself, although I have already made arrangements for fresh rubber once lockdown ends. But the brakes were another matter. Knowing they were on the way out I'd already started to think about replacing them, and had got a scary-looking £900 quote from a specialist for front discs and pads. While I was sure a bit of ringing around would have allowed me to do better than that, here was an opportunity to make a much more significant saving by doing it myself.


Like many people I used to do a fair amount of work on my own cars - always out of poverty rather than choice - but it's been years since I wielded a spanner in anger. Yet with a reasonable stock of tools and an obvious requirement for work, there didn't seem to be an excuse not to. A set of Brembo discs and pads plus a fitting kit from design911.com was £288.68 all-in, and arrived two days later.

One thing I well remember from the far-off days when I used to regularly sport a mechanic's suntan is that most time is always spent on solving unforeseen problems, so I tried to minimise those. Having previously suffered from the seizure of the total seizure of the screws that secure discs to hubs I'd dug out an old impact driver, and felt suitably smug when this defeated the rusty screws in short order. The rest would be a doddle, right?

Ha! Porsche's Brembo calipers feature a pin which locates the pads and secures a spring-clip that stops them from wandering. On the Cayman, these put up an extraordinary fight. On the YouTube how-to videos I'd consulted the smiling hosts knocked them out with a couple of delicate taps with a punch and hammer. Between them mine took the best part of an hour of sweat and swearing. By the time they were both out I'd bent one punch and snapped another, although the state of the pads suggested they'd been in there for some time.


Once that battle was won, the rest was easy. The Brembo four-pot calipers are much better designed than the horrible sliding single-pots I remember from my youth, and the pads aren't handed, making it impossible to misfit them. Everything slid together with commendable precision, and it was just like the line they used to love in Haynes manuals: reassembly really was the reverse of removal. I even got to use my torque wrench for the first time in nearly 20 years to make sure everything was appropriately tight. By the time the car was back on its wheels I had the sense of satisfaction of a job ticked off the list as well as a good crop of aches and pains.

I'd saved a bit of money, too - although probably not at main dealer service rates. An experienced tech could probably have done the whole thing in an hour, it took me nearly four. Having bedded the pads and discs in on a shopping trip - delivering the eggs pre-scrambled when I returned home - the next question is whether or not to SORN the Cayman 'for the duration.'


FACT SHEET
Car:
2009 Porsche Cayman S
Run by: Mike Duff
Bought: September 2019
Mileage at purchase: 63,500
Mileage now: 71,873
Last month at a glance: Breaking in new brakes
Previous reports:
Mike's Cayman S joins the fleet
To warranty or not to warranty




Author
Discussion

Cambs_Stuart

Original Poster:

2,868 posts

84 months

Wednesday 8th April 2020
quotequote all
Always good to know it's not just me sweating and swearing at bits of car. Good article about the realities of DIY car maintenance though.

Turbobanana

6,266 posts

201 months

Wednesday 8th April 2020
quotequote all
Is that a tea cosy?

stuthemong

2,275 posts

217 months

Wednesday 8th April 2020
quotequote all
Hehe, I have similar pins on my vantage, and had similar problems. Hateful getting them out.

neilferg

30 posts

67 months

Wednesday 8th April 2020
quotequote all
Common issue with the pins on the 8 pot calipers on Audi rs models . I'd to cut mine off with an angle grinder last time I changed front pads . £42 for new fitting kit as well!
Surprised by how inexpensive discs and pads are for the Cayman.

TREMAiNE

3,918 posts

149 months

Wednesday 8th April 2020
quotequote all
A faced a similar dilemma with my 987.2 Boxster S, with Porsche quoting just under £2,000 for a full set of discs and pads.

Porsche told me that providing I used OEM parts, I could get the brakes done elsewhere without it affecting my warranty. I spent a few hundred quid on parts and a more mechanically minded friend of mine helped fit them over an afternoon.


Oakman

326 posts

158 months

Wednesday 8th April 2020
quotequote all
No mention of copious amounts of copper based grease to prevent seizure and aid future removal (and for the brake components) !

Ahonen

5,016 posts

279 months

Wednesday 8th April 2020
quotequote all
Those bloody pins are a pain in the backside! I changed the front brakes on my 996 last year. The driver's side pin was a bit of a pain but came out eventually. The passenger's side one just wasn't having it at all. Lots of cursing. Popped round to DW Performance, my local indie in Wellingborough, and naturally it took Kev two taps to remove while I stood there feeling like a right charlie. Kev was very kind and explained that it's a lot easier when you have exactly the right size drift, but I'm sure he was just humouring me...

Krikkit

26,527 posts

181 months

Wednesday 8th April 2020
quotequote all
Oakman said:
No mention of copious amounts of copper based grease to prevent seizure and aid future removal (and for the brake components) !
Mintex assembly lube is much better.

For the pins they are an absolute bugger - they should be an annual service item to remove and refit them (you wouldn't need to take the pads out etc), otherwise they seize in like buggers.

I did the brakes on my old Merc and couldn't get them out for love nor money, you could see from the caliper that previous folk had mullered them with trying to get them out and given up (as you can swap the pads without removing the pins by taking the caliper off). In the end I cut them through the centre and used them like allen keys to loosen them up.

jakeb

281 posts

194 months

Wednesday 8th April 2020
quotequote all
You are quite lucky the 6mm bolt that holds the hard line to the hub didnt snap. When i did the 996 one side came out fine and the other just snapped off....

So i drilled it and then made the mistake of using an "easyout" which promptly snapped off. Can you drill those out........... I had to defer to the guys at PIE to sort that for me.

james_gt3rs

4,816 posts

191 months

Wednesday 8th April 2020
quotequote all
I remember doing this on my old 986S... trick with the pins was to have the biggest punch that fits in the hole, then a moderate tap with the hammer and it frees itself. It did chip the paint at the edge a bit, but my smaller punches just didn't work and I was risking losing a thumb as I had to hit it so hard.

Ryvita

714 posts

210 months

Wednesday 8th April 2020
quotequote all
Hmm... How accurate is the calibration of a 20-year old torque wrench going to be?

Genuine question, I have no idea. Is it something which drifts / degrades?

Antj

1,047 posts

200 months

Wednesday 8th April 2020
quotequote all
Many days i sit in the Office thinking, i wish i had been a mechanic, working on nice cars etc ( i know that's not always the case as my brothers owns a garage at the ring) But of course grass is greener.

Then i do some work on the beemer or Skoda, sometimes a simple job like changing sidelights on the Fabia which took an hour, with cut knuckles, a high heart rate, more swearing than warranted, i then think,,,,,,naaaah i'm happy to pay someone to do things.

Have to say now at 40 i occasionally dip back in and will do a job myself, but when i look back to when i was 20 and some of the crazy jobs i used to take on out on my parents driveway i can only assume as you get older you become more pessimistic about problems you will encounter.

And yes i have previously been crippled by a simple disc retaining screw.

But there is a sort of "I'm a real Man" like satisfaction when you sit back and look at what you have done, especially when its succesfull like this job.

re33

269 posts

164 months

Wednesday 8th April 2020
quotequote all
Anyone know what the strange counterweight things on the pads for? Brake squeal?

Leftfootwonder

1,116 posts

58 months

Wednesday 8th April 2020
quotequote all
Cambs_Stuart said:
Always good to know it's not just me sweating and swearing at bits of car. Good article about the realities of DIY car maintenance though.
+1


STiG911

1,210 posts

167 months

Wednesday 8th April 2020
quotequote all
Yep. Same happened to me when I did all four corners of my 997 three years ago. The rear pins basically fell out and the offside front came out after a fight, but the nearside front snapped the one pin punch I did have - luckily my buddy Frayz has just about every tool Snap on have ever sold, so he had that pin out for me in a few minutes, then coated both in a dab of copper grease for future ease of removal.

And Brembo discs are often much cheaper than OEM and soooo much nicer to behold because of the high temp paint used on the hats and edges - No rusting thumbup

anonymous-user

54 months

Wednesday 8th April 2020
quotequote all
"some graunching noises from the front brakes on the way home reminding me that they were close to the end"

How does this sort of garbage get written on a motoring website?

BenGB

117 posts

129 months

Wednesday 8th April 2020
quotequote all
Nice one Mike - you are quite right about the satisfaction of doing a job yourself, provided it can be limited to only the jobs you fancy doing! My eldest now has an 18 year old Polo and it's quite satisfying fixing the little things that are almost too much hassle to get done at a garage.

Back in the olden days I would do things like valve stem oil seals on my smoky old Astra and Cavalier and shocks and springs on my Golf GTi in parents' and friends' garages, but I think brakes are about as far as I'd go on the oily bits these days!

BenGB

117 posts

129 months

Wednesday 8th April 2020
quotequote all
On the subject of driving out caliper pins, when I was young and too poor to buy the right sized drift I used to carefully machine a high end tool for the job by cutting the pointy end off a bloody great 6 inch nail with a hacksaw biggrin

It would last a pair of calipers before it was too knackered to use again and had to be replaced with a precision fashioned replacement...

And of course a "caliper rewind tool" was the largest flat head screwdriver in the toolbox!

stavr0ss

198 posts

128 months

Wednesday 8th April 2020
quotequote all
rockin said:
"some graunching noises from the front brakes on the way home reminding me that they were close to the end"

How does this sort of garbage get written on a motoring website?
I’m confused, are you complaining about the brakes being left until they graunch?

anonymous-user

54 months

Wednesday 8th April 2020
quotequote all
stavr0ss said:
rockin said:
"some graunching noises from the front brakes on the way home reminding me that they were close to the end"

How does this sort of garbage get written on a motoring website?
I’m confused, are you complaining about the brakes being left until they graunch?
No, not at all, that's absolutely normal.... especially when you've just passed an MOT.