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HomeTech Articles > Replacing 914 Rear Calipers

Pelican Technical Article:

Replacing 914 Rear Calipers

Difficulty Level 3

Difficulty scale:
Adding air to your tires is level one
Rebuilding a 911 Motor is level ten

[Click on Photo]

Figure 4
Figure 1: Rear brake caliper exposed

       Replacing your rear caliper is both fun and easy. Well, at least it's easy.  There's really not too much to it. The most difficult part of the job is bleeding out the brakes both before and after removing the caliper. The only part you'll need for the job is a replacement rear caliper.

     The rear calipers usually leak around the parking brake seal, causing the system to leak fluid on the ground and lose pressure in the entire system.  The process of replacement begins with jacking the car up and supporting the rear end with jack stands.  A convenient place to place the jack stands is under the motor motors, on the engine support bar.  Make sure you loosen the lug nuts on both rear wheels before you raise the car. Once the car is jacked up, remove both rear wheels.  You will need to bleed the system later on, and it's much easier to do with the rear wheels removed.

     Now, you need to bleed the system of brake fluid from the side of the car that is having the caliper replaced.  We recommend using a pressurized brake bleeding system. This system works by plugging into the spare tires and pushing brake fluid through the brake system. The tool we recommend is called EZ Bleed, and we are currently trying to locate the manufacturer to supply it to our customers.  You can also use a vacuum bleeder, or a family member to pump on the brake pedal until the system is dry.  We don't recommend the family member approach, as you will have to pay them pay in extra favors later on...

    With your preferred method of bleeding, empty the system of fluid on the side of the car that you are removing the caliper from.  You will need a 7mm wrench in order to  loosen the bleeder valve. Once the system is bled, then you can begin removing the caliper. The parking brake cable is attached with a pin and a little circlip attached to the arm of the caliper. Using a pair of pliers, remove the clip, and force out the pin by tapping it from below. Make sure that the parking brake handle inside the car is not engaged.  Next, remove the little clips that hold in the two shafts that support the brake pads.  Then, take a screwdriver and tap out the two brake pad support shafts. Next, remove the brake pads. If they don't immediately press out, then use a screwdriver to pry them out.  The caliper setup should look like it does in Figure 1.

   Now, remove the brake line that is attached to the caliper.  Becareful not to strip the nut, as they have a habit of become frozen tot he caliper.  It may be wise to use a wrench that warps around the entire nut rather than a typical crescent wrench.  After the brake line is removed and out of the way, then remove the bolts that attach the rear brake caliper.  These are located on the rear of the caliper and may require a little tool agility in getting to them. The caliper should come right off after the bolts are removed. Replacement is the exact opposite of removal - simply bolt the new one in place and reattach the brake line.

     Make sure that you bleed the brakes carefully - with the proportioning valve in the rear, it's easy to get spongy brakes because of trapped air.  Start with the calipers located farthest away from the master cylinder and work your way closer.  You will also have to reinstall the brake pads, and adjust the venting clearance between the pads and the rotor.  This venting clearance should be 0.2 mm, and should be checked again after actuating and releasing the hand brake once.

   There you have it - the replacement can be completed easily in an evening, and you shouldn't have to worry about messy and dangerous brake leaks.  If you have any questions about this job, drop us line...

Comments and Suggestions:
JB Comments: Hi iam calling from UK could tell me how to install the floor panels on my 1972 914 does the centre joint need to be cut , or is it a butt weld the advice would be great fully appreciated many thanks JB
December 4, 2016
  Followup from the Pelican Staff: I don't have any experience with sheet metal work.

I opened a post in our forums. A Pelican community member may be able to answer your question.
- Nick at Pelican Parts
Avocado Tom Comments: How are the parking brake cables attached to the caliper? Does the pin just loop over the "lever"? Or are they affixed to it in some way? Mine won't separate easily, but they're pretty rusty, so it's hard to tell what's going on. I've been periodically soaking them with pb blaster over the last few weeks, but I could use some advice.
June 18, 2014
  Followup from the Pelican Staff: The cable loops over the lever. Compress the lever, then detach the cable. - Nick at Pelican Parts  
Randy Comments: Does anyone know the number that should be stamped on the rear brake Calipers of a Porsche 914?
February 6, 2014
  Followup from the Pelican Staff: Give our parts specialists a call at 1-888-280-7799. They should be able to answer this question. - Nick at Pelican Parts  
Asbjørn Hjertum Comments: I need new rear brake calipers for the 914.
Any on stock, and a price ??
December 8, 2013
  Followup from the Pelican Staff: Give our parts specialists a call at 1-888-280-7799 and they can help figure out which part or repair kit you need. - Nick at Pelican Parts  
Dave Comments: Wayne, Great article! What do you think about plugging the brake line instead of pumping the system dry and then change the brake fluid after the calipers have been replaced? This procedure would not introduce air in the entire system. Getting air out of the lines can be a real pain and you can go through a lot of fluid unnecessarily. Alternate between ate blue and gold fluid and you know when your job is done. Thanks again for the article.
December 30, 2010
  Followup from the Pelican Staff: I'm not sure I recommend pumping the system dry - I might have to revisit the article if it gives that impression. Typically, the system will hold most of the fluid in when you disconnect the line - bleeding will just empty that air out when you connect the caliper up again. - Wayne at Pelican Parts  

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