Another Master Cylinder Reservoir headache thread, Hose fittings would have been nice, porsche |
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Another Master Cylinder Reservoir headache thread, Hose fittings would have been nice, porsche |
betz |
Oct 22 2020, 10:14 AM
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#1
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Member Group: Members Posts: 76 Joined: 22-October 18 From: San Leandro, CA Member No.: 22,593 Region Association: Northern California |
I did a lot of searching but none really have quite the same issue I'm having.
So I installed a new master cylinder a while back, wrestled around with the reservoir flared fittings into the grommets, etc etc, finally got it in somehow. FYI- this is a URO parts master cylinder. I am wary of URO parts not always being the best quality but the @UROpartsman seems to stand behind their products and makes revisions based on feedback so I trust it well enough. So anyways, got it installed, but it was leaking just small little drops from the reservoir fitting towards the front of the car. Enough to drain the reservoir overnight. Did some searching and saw that many people forget the washers. But also see the Uro master cylinder has them pre-installed as of a recent revision. I take the safe road and buy a couple of washers, right part number genuine porsche. Pull out my master cyl again, pull out the grommets, of course it already had washers in there. Since I got this far I replaced the washers anyways, and reinstall everything. NOW, it doesn't drip drop. It's a constant stream, leaking like a sieve. Front fitting again, the back one if it leaks, doesn't leak nearly as much. I wrestle with the fittings even more and may have gotten it down to a profuse drop. But the fittings were pushed all the way into the cylinder as far as I could tell! No amount of wrestling got them any further. And I was pushing into it pretty hard. Seems like maybe the angle had an effect on how much it was leaking. But is it really to the point that you need to just get them in just perfect or else it will leak? Seems like normal driving could move it around. I would think it's just, if it's in it's in. My solution for now is I guess I'll buy new grommets? I'm just wondering if there's any case that that the flare fitting is only partially seated, or did I just wrestle with it too much and somehow damage the grommets? How can I tell it's seated? Anyways I got some Ate brand grommets on the way since that's the only thing I could think of causing the leak. Would appreciate any insight, thanks. |
Craigers17 |
Oct 22 2020, 04:38 PM
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#2
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Senior Member Group: Members Posts: 734 Joined: 5-August 17 From: Rome, GA Member No.: 21,317 Region Association: South East States |
.....this is only my 2 cents.....and this was my first rodeo on the whole m/c thing, so take it with a grain of salt. I couldn't get it seated from underneath....and I tore a grommet trying to do so.
I actually drained most of the gas tank, and, after removing the expansion part of the tank, I tilted it so that I could access the area underneath. Then I disconnected the plastic tubes where they meet the blue reservoir hoses and pulled them up through the top. This also makes it easier to install new grommets where the 2 lines go through the firewall. Anyhow, at that point, I installed the plastic lines and grommets into the m/c on the workbench(or, in my case, the top of a large recycle bin w/ plywood on top). If this is your first time, this method is not only easier, but it allows you to visually see what is going on as well, which usually helps me out. Then I fed the tubes back up through the bottom of the firewall and reconnected to the cluster and reservoir. Since I'm kinda clueless on this stuff, I can only describe the installation as slowly "tucking the grommet in" around the flare while applying pressure so that is seats. Although others have obviously pulled this off, after seeing the process from above so to speak, the only way I could see of doing it from below is if you put a 90 degree bend on a very small screwdriver so that you can tuck that grommet in. IIRC, there is an article on Pelican Parts which mentions this. Good luck! I'm sure someone will chime in and tell you why my post is nuts! |
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