 Master cylinder leak repair question, Reservoir line grommets |
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| MartyYeoman |
 Jul 2 2016, 12:27 PM
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#1
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Senior Member  Group: Members Posts: 1,518 Joined: 19-June 03 From: San Ramon, CA Member No.: 839 Region Association: Northern California 
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The plastic lines from my brake fluid reservoir to the master cylinder have started to leak at the master cylinder grommets. When I replaced/upgraded to a19mm (a while ago) the grommets came installed.What do I need to know for the repair. Can I R&R them without breaking into the pressure side of the system? Should I just plan on pulling the MC as I'll need to bleed the system anyway?Thoughts anyone? I'm not looking to make this more than it needs to be.
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| era vulgaris |
Jul 2 2016, 12:36 PM
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#2
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J is for Genius Group: Members Posts: 982 Joined: 10-November 13 From: Raleigh, NC Member No.: 16,629 Region Association: South East States |
Did you install the two washers that should've come with your MC under the grommets?
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| MartyYeoman |
Jul 2 2016, 12:44 PM
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#3
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Senior Member Group: Members Posts: 1,518 Joined: 19-June 03 From: San Ramon, CA Member No.: 839 Region Association: Northern California
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Don't remember, It's probably been at least five (maybe ten) years since the install. |
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| BeatNavy |
Jul 2 2016, 01:50 PM
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#4
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Certified Professional Scapegoat Group: Members Posts: 2,924 Joined: 26-February 14 From: Easton, MD Member No.: 17,042 Region Association: MidAtlantic Region
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I would imagine you MIGHT be able to do it without having to rebleed the brakes. In theory. But getting those grommets in is a real PITA. Doing it with the MC attached is tough, although if you pulled the fuel tank I suppose it's possible, IIRC. And yes, you need those two washers.
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| MartyYeoman |
Jul 2 2016, 02:40 PM
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#5
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Senior Member Group: Members Posts: 1,518 Joined: 19-June 03 From: San Ramon, CA Member No.: 839 Region Association: Northern California
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Sounds like its going to be a "While I'm in there." sort of thing.
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| MartyYeoman |
Jul 2 2016, 07:29 PM
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#6
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Senior Member Group: Members Posts: 1,518 Joined: 19-June 03 From: San Ramon, CA Member No.: 839 Region Association: Northern California
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Exactly what service do the washers perform? I see them in both the Haynes and Lash manuals but without any mention in the text. Are they intended as end of travel stops for the reservoir tubes?
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| MartyYeoman |
Jul 8 2016, 08:49 PM
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#7
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Senior Member Group: Members Posts: 1,518 Joined: 19-June 03 From: San Ramon, CA Member No.: 839 Region Association: Northern California
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Update:
It just seemed best to pull it all apart and repair it correctly. I ended up pulling the gas tank, master cylinder, reservoir and feeder lines. I installed new lines and grommets onto the master cylinder and fed them through from below (I bet the factory took the same approach.). Then new bulkhead grommets, connecting tubes and the reservoir tank all from above. It all went together easily without much hassle. I reinstalled the gas tank, bled the system and done. (IMG:style_emoticons/default/smilie_pokal.gif) |
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| BeatNavy |
Jul 9 2016, 07:07 AM
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#8
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Certified Professional Scapegoat Group: Members Posts: 2,924 Joined: 26-February 14 From: Easton, MD Member No.: 17,042 Region Association: MidAtlantic Region
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Nice work, and good to have done!
Getting those feed lines seated into the MC is not easy, right? I'm not sure if it would be feasible with the MC and fuel tank still in... |
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| mepstein |
Jul 9 2016, 07:25 AM
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#9
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914-6 GT in waiting Group: Members Posts: 19,258 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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QUOTE(Marty Yeoman @ Jul 2 2016, 09:29 PM)  Exactly what service do the washers perform? I see them in both the Haynes and Lash manuals but without any mention in the text. Are they intended as end of travel stops for the reservoir tubes? Washers need to be there or the lines will leak. |
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| MartyYeoman |
Jul 9 2016, 09:23 AM
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#10
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Senior Member Group: Members Posts: 1,518 Joined: 19-June 03 From: San Ramon, CA Member No.: 839 Region Association: Northern California
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QUOTE(BeatNavy @ Jul 9 2016, 06:07 AM) Getting those feed lines seated into the MC is not easy, right? Actually, they were not hard at all once the unit was out on the workbench. Once there I had freedom to manipulate as needed. |
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