 Master Cylinder - rebuild or buy a replacement |
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| dgraves |
 Mar 30 2018, 06:24 PM
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#1
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1974 914 2.0  Group: Members Posts: 180 Joined: 6-June 16 From: Montana Member No.: 20,076 Region Association: Rocky Mountains  |
It feels like my brake master cylinder is going bad on my 1974 2.0. Since I've never rebuilt one or replaced one on the 914, I'm looking suggestions and parts sourcing. Any help out there?
Thank you. |
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| iankarr |
Mar 30 2018, 08:46 PM
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#2
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The wrencher formerly known as Cuddy_K Group: Members Posts: 2,564 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region 
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What makes it feel like the MC is failing? When was the last time the system was bled with new fluid? Over time, DOT 3 & 4 brake fluid pull humidity from the air, which leads to decreased braking response. If it hasn't been changed in a while, that could be the cause.
The 19mm MC is a great upgrade regardless. Here's the install video I made for the 914rubber one...hope it helps. https://www.youtube.com/watch?v=N6ZHK5f_9bE |
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| dgraves |
Apr 1 2018, 08:55 AM
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#3
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1974 914 2.0 Group: Members Posts: 180 Joined: 6-June 16 From: Montana Member No.: 20,076 Region Association: Rocky Mountains |
QUOTE(cuddy_k @ Mar 30 2018, 08:46 PM)  What makes it feel like the MC is failing? When was the last time the system was bled with new fluid? Over time, DOT 3 & 4 brake fluid pull humidity from the air, which leads to decreased braking response. If it hasn't been changed in a while, that could be the cause. The 19mm MC is a great upgrade regardless. Here's the install video I made for the 914rubber one...hope it helps. https://www.youtube.com/watch?v=N6ZHK5f_9bE Thanks, Cuddy. I just had 4 PBM Performance calipers installed. Lines were bled many times. No leaks in the lines or at the caliper. My mechanic and I are assuming the master cylinder. I had to take the car home and do this research. Sounds like my MC...doesn't it. |
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Posts in this topic
dgraves Master Cylinder - rebuild or buy a replacement Mar 30 2018, 06:24 PM
bbrock I looked high and low for a rebuild kit and my und... Mar 30 2018, 06:43 PM
dgraves
I looked high and low for a rebuild kit and my un... Mar 30 2018, 06:56 PM bbrock
I looked high and low for a rebuild kit and my u... Mar 30 2018, 08:15 PM Coondog Perfect time to upgrade to a 19mm master cylinder,... Mar 30 2018, 07:01 PM bdstone914
What makes it feel like the MC is failing? When w... Mar 30 2018, 09:20 PM aharder go for the 19MM from 914Rubber :D Mar 30 2018, 08:47 PM drem914
go for the 19MM from 914Rubber :D
Second that... Mar 30 2018, 08:51 PM steuspeed I went with the 17mm Ate from Pelican Parts. ... Mar 30 2018, 10:37 PM porschetub
I went with the 17mm Ate from Pelican Parts. ... Mar 31 2018, 01:06 PM mepstein I would do the soft lines at the same time. They d... Mar 31 2018, 05:35 AM The Cabinetmaker I agree on the soft lines. They degrade from the i... Mar 31 2018, 11:18 AM JFG I looked for ages for a kit for my 19mm but could ... Mar 31 2018, 01:25 PM The Cabinetmaker To much liability to sell rebuild kits to people w... Mar 31 2018, 02:18 PM bbrock
To much liability to sell rebuild kits to people ... Mar 31 2018, 02:52 PM cuddy_k If everything is new, it could be that the pads ha... Apr 1 2018, 12:59 PM cal44 Do you have two bleed nipples on each caliper? O... Apr 1 2018, 01:26 PM dgraves
Do you have two bleed nipples on each caliper? ... Apr 1 2018, 03:56 PM |
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