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!tom
Joined: 28 Aug 2006 Posts: 1930 Location: Victoria, BC Canada
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Posted: Mon May 11, 2020 8:22 am Post subject: Dragging Brakes |
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I had a cooling system issue with my car, and I ended up not getting around to fixing it for way longer than expected. As such, it's been sitting for around 4 years without moving.
It's a 924 with a 5-lug conversion donated by a 931.
When I first moved it, both E-brakes were stuck, but one released. The other one is dragging.
I took it for a very short drive around the neighbourhood, and now the service brakes are dragging.
I've never had a car with dragging brakes before. Is there a chance they'll free up with use? What's the best way to deal with this? _________________ 78 924 NA
5-lug |
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winddude
Joined: 15 Jan 2020 Posts: 61 Location: Vancouver Island
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Posted: Mon May 11, 2020 2:00 pm Post subject: |
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My guess is stuck caliper guide pins. I would take the calipers off, and see if they need a rebuild, and clean up/lube the guide pins at least. |
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Raize
Joined: 18 Sep 2013 Posts: 170 Location: Scotland
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Posted: Tue May 12, 2020 10:07 pm Post subject: |
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I never understood how Porsche expected the guide pins to remain lubricated or even NOT corrode with them being completely exposed.
Modern cars I've worked on have seals to keep the grease in and the water out. |
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924RACR
Joined: 29 Jul 2001 Posts: 8794 Location: Royal Oak, MI, USA
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Posted: Tue May 12, 2020 11:08 pm Post subject: |
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Remember, these disc calipers were low-maintenance brakes, back then. But they were never NO maintenance.
Beat the hell out of having to adjust drums all the time! Because many of the drums weren't even self-adjusting.
I do recommend using disc brake grease on those pins, easy to find at any local auto parts store. I have a huge lifetime-supply sized tube of synthetic disc brake grease I use.
Though yeah, modern sealed pin design would be nice... _________________ Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype |
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