 Replaced Master Cylinder Again, crap rubber |
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| djway |
 Oct 17 2018, 10:30 PM
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#1
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Senior Member  Group: Members Posts: 787 Joined: 16-October 15 From: Riverside Member No.: 19,266 Region Association: Southern California  |
Recently the brake fluid reservoir started going empty in a night or two.
Today pulled the master cylinder that was only 3 years old to the month. Started the day by pouring some fluid into the reservoir then watching for the magic drip to arrive. It appeared at the front grommet and was flowing quite quickly. After removing the m/c I pulled out the grommets and inspected for proper seating from the last install and all looked good. This means that it was simply the rubber had shrunk enough to allow the fluid to pass. Maker Uro. I replaced it with the 914 Rubber ez install m/c that I had purchased during the group buy. Went in WAY quicker than the last time but it still is very tight work. Tomorrow comes the dreaded bleed. |
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| SirAndy |
Oct 18 2018, 01:31 AM
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#2
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Resident German Group: Admin Posts: 41,606 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
Imagine if that seal had failed when you needed it the most, consider yourself lucky it happened in your garage ...
(IMG:style_emoticons/default/unsure.gif) |
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| djway |
Oct 18 2018, 01:35 AM
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#3
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Senior Member Group: Members Posts: 787 Joined: 16-October 15 From: Riverside Member No.: 19,266 Region Association: Southern California |
QUOTE(SirAndy @ Oct 18 2018, 12:31 AM)  Imagine if that seal had failed when you needed it the most, consider yourself lucky it happened in your garage ... (IMG:style_emoticons/default/unsure.gif) Actually the need to give a couple pumps made me open the hood as it had been sitting for too long. An upstream leak probably would not cause a sudden failure. |
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| mepstein |
Oct 18 2018, 05:59 AM
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#4
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914-6 GT in waiting Group: Members Posts: 19,239 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region 
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Did you use the metal washers under the brake line, inside the grommets.
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| VaccaRabite |
Oct 18 2018, 09:32 AM
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#5
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En Garde! Group: Admin Posts: 13,425 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
I also had a URO MC fail within a few months several years ago. I pitched it and bought the more expensive ATE. No issues since.
Zach |
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| 76-914 |
Oct 18 2018, 10:17 AM
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#6
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,490 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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@phatnine11 , You reading this Ceasar? Looks like you have another 2 years. (IMG:style_emoticons/default/shades.gif)
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| Mikey914 |
Oct 19 2018, 12:34 AM
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#7
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The rubber man Group: Members Posts: 12,638 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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There is a reason I made these. I too had the experience and returning it was like pissing in the wind.
"You installed the part, we can't take it back" One of the driving reasons I keep pumping out parts! And thanks for the pops (IMG:style_emoticons/default/beer3.gif) |
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| Olympic 914 |
Oct 19 2018, 06:27 AM
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#8
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Group: Members Posts: 1,662 Joined: 7-July 11 From: Pittsburgh PA Member No.: 13,287 Region Association: North East States
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Even the ATE units are not infallible,
I had one fail in less than 1500 miles. you would have good pedal at first hit but then it would slowly go to the floor. release and hit again good brakes for a bit then slowly go to the floor. checked everywhere for leaks … none. replaced with another ATE unit and so far so good for 2500 miles. |
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| Tbrown4x4 |
Oct 19 2018, 07:10 AM
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#9
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Senior Member Group: Members Posts: 703 Joined: 13-May 14 From: Port Orchard, WA Member No.: 17,338 Region Association: None
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Another vote for the 914Rubber master cylinder:
I installed mine before WCR, and have put over 500 miles a week on it since then. Best brakes since I bought the car, and I don't expect any problems In the near future. |
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| phatnine11 |
Oct 19 2018, 04:26 PM
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#10
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Member Group: Members Posts: 286 Joined: 22-March 05 From: Rancho Cucamonga, CA Member No.: 3,798 |
QUOTE(76-914 @ Oct 18 2018, 09:17 AM) @phatnine11 , You reading this Ceasar? Looks like you have another 2 years. (IMG:style_emoticons/default/shades.gif) The amount I drive my 914 means I have another 6 years! Cesar |
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| 76-914 |
Oct 19 2018, 08:53 PM
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#11
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,490 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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QUOTE(phatnine11 @ Oct 19 2018, 03:26 PM) QUOTE(76-914 @ Oct 18 2018, 09:17 AM) @phatnine11 , You reading this Ceasar? Looks like you have another 2 years. (IMG:style_emoticons/default/shades.gif) The amount I drive my 914 means I have another 6 years! Cesar I just wanted to let you know about this. And BTW, you have one of the nicest green 914's I've seen. You ought drive that thing more. (IMG:style_emoticons/default/poke.gif) |
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