Fluid on the floor: What could it be?, (time to take a brake?)Slight mystery upon returning from Okteenerfest |
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Fluid on the floor: What could it be?, (time to take a brake?)Slight mystery upon returning from Okteenerfest |
DRPHIL914 |
Oct 6 2019, 09:11 AM
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#1
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Dr. Phil Group: Members Posts: 5,758 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
After returning from Okteenerfest the car sat a couple weeks, and after taking it to Cars and coffee I parked it again but backed in and a few days later pulled out and noticed 2 small puddles , front at rear- cleaned it up them parked the car , then a few days later checked again and it’s for sure under front.
I was initially worried that I had a front crank seal when I thought it was from the back, and I am releaved that it’s not from the motor, I did all that last year and am proud to say it’s been a leak free motor since then, and I didn’t want to pull the motor or trans. BUT this is brake fluid, and I can’t really explain why this would suddenly spring A leak (IMG:style_emoticons/default/confused24.gif) . I replaced all brake lines and the 19mm master cylinder about 3-4 years ago, no leaks no issues since then. And I don’t have loss of pressure on brakes so I am assuming it’s the supply line so I guess I will be pulling the belly pan to investigate. Will post more info when I get a look just wonder why just now? I know the washer is there under the supply line connection, just weird this started now??? Phil |
bbrock |
Oct 6 2019, 09:43 AM
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#2
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains |
What MC did you install? There were a small number in the first batch of MCs from 914Rubber that had a problem with the welch plug on top leaking. That area isn't under pressure but can slowly weep fluid. They test for it now so newer ones should be fine. I repressed the welch plug on mine and then filled the recess on top with JB Weld just for extra measure. Car has been sitting for months with no drips.
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DRPHIL914 |
Oct 6 2019, 09:49 AM
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#3
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Dr. Phil Group: Members Posts: 5,758 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
What MC did you install? There were a small number in the first batch of MCs from 914Rubber that had a problem with the welch plug on top leaking. That area isn't under pressure but can slowly weep fluid. They test for it now so newer ones should be fine. I repressed the welch plug on mine and then filled the recess on top with JB Weld just for extra measure. Car has been sitting for months with no drips. It’s a 19mm 911 mc I bought from PMB when I got all my new hard lines and soft lines as well, same time that I did the 5-lug conversion- i did have an issue during install getting the supply line seated but once it popped into place it had been dry- I did not put in new supply line so maybe that the issue now? I home it’s not complicated it was a lot of brake fluid and the reservoir is pretty low. Btw I’m not sure but what should I be putting in, just DOT3?? This is clean no blue tinting to it |
76-914 |
Oct 6 2019, 09:50 AM
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#4
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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 |
Is there any fluid inside on the floorboard?
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DRPHIL914 |
Oct 6 2019, 09:53 AM
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#5
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Dr. Phil Group: Members Posts: 5,758 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
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76-914 |
Oct 6 2019, 10:00 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 |
Just see if it is on the floorboard. If so, a cup seal on the MC is torn and the MC is toast.
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rjames |
Oct 6 2019, 04:26 PM
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#7
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I'm made of metal Group: Members Posts: 3,914 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
Someone else can correct me if I’ve got this wrong, ...
If you’re not sure if you are currently running dot3 or dot4, you can safely use dot4. Use Dot5 only if that’s what you have in it now. |
DRPHIL914 |
Oct 8 2019, 07:41 AM
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#8
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Dr. Phil Group: Members Posts: 5,758 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
So last night pulled carpet and took a look under he pedal board and no fluid under the
Pedals and m.c. inside, so next is tonight I will try and get car jacked up and pull the cover to steering and m.c. . Btw brake pedal is firm with no loss of pressure so I am expecting to see a leak at the supply line - More fluid on the floor after it’s just sitting for a few days so it’s just leaking out from gravity. |
bdstone914 |
Oct 8 2019, 08:02 AM
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#9
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bdstone914 Group: Members Posts: 4,512 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
@DRPHIL914 ' post='2753114
So last night pulled carpet and took a look under he pedal board and no fluid under the Pedals and m.c. inside, so next is tonight I will try and get car jacked up and pull the cover to steering and m.c. . Btw brake pedal is firm with no loss of pressure so I am expecting to see a leak at the supply line - More fluid on the floor after it’s just sitting for a few days so it’s just leaking out from gravity. [/quote] You may need a mirror and flashlight to inspect the top of the master. My bet is a leak around the input lines. A cheap cell phone endoscope is helpful to see into remote areas. Bruce |
mepstein |
Oct 8 2019, 08:06 AM
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#10
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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 |
Phillip - did you install the metal washers under the rubber grommets at the supply lines.
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DRPHIL914 |
Oct 8 2019, 09:09 AM
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#11
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Dr. Phil Group: Members Posts: 5,758 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
Phillip - did you install the metal washers under the rubber grommets at the supply lines. Back when I installed this I initially forgot- had the leak, then installed the washer and had no leak for the next 3-4 years until getting back from Okteenerfest- have you ever seen a supply line pop back out later? |
rjames |
Oct 8 2019, 10:50 AM
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#12
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I'm made of metal Group: Members Posts: 3,914 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
Phillip - did you install the metal washers under the rubber grommets at the supply lines. Back when I installed this I initially forgot- had the leak, then installed the washer and had no leak for the next 3-4 years until getting back from Okteenerfest- have you ever seen a supply line pop back out later? Make sure the lines going in to the MC are fairly straight with no or little angular pressure. The rubber MC grommets allow for the lines to come in at a bit of an angle (very slight), but too much could cause it to leak. You should be able to wipe everything down and then find where it’s leaking from given how big your leak is. |
DRPHIL914 |
Oct 8 2019, 07:06 PM
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#13
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Dr. Phil Group: Members Posts: 5,758 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
Is there any fluid inside on the floorboard? After closer investigation and looking outside at the supply lines tonight, seeing no leak from the master cylinder at the supply or the outgoing lines, I went back in to look closer, and yes there is fluid under the pedals cluster inside.... (IMG:style_emoticons/default/headbang.gif) Attached thumbnail(s) |
DRPHIL914 |
Oct 8 2019, 07:22 PM
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#14
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Dr. Phil Group: Members Posts: 5,758 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
Outside under MC and on top are dry, just wet at wall where Mc goes thru but really wet under at the low spot here pedal cluster bolts down to floor
Attached thumbnail(s) |
DRPHIL914 |
Oct 8 2019, 07:24 PM
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#15
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Dr. Phil Group: Members Posts: 5,758 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
Phillip - did you install the metal washers under the rubber grommets at the supply lines. Back when I installed this I initially forgot- had the leak, then installed the washer and had no leak for the next 3-4 years until getting back from Okteenerfest- have you ever seen a supply line pop back out later? Make sure the lines going in to the MC are fairly straight with no or little angular pressure. The rubber MC grommets allow for the lines to come in at a bit of an angle (very slight), but too much could cause it to leak. You should be able to wipe everything down and then find where it’s leaking from given how big your leak is. Well lines coming down are dry , lined up fine- BUT Mc will be replaced before car is driven again it looks like but this MC was new less than 5 years ago- hey Eric Shea, is the still under warranty? Attached thumbnail(s) |
mepstein |
Oct 8 2019, 07:30 PM
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#16
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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 |
I'm certainly no expert but it sounds like it went bad. That's what kills the pedal cluster. Brake fluid on the oem plastic bushings.
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DRPHIL914 |
Oct 8 2019, 08:49 PM
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#17
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Dr. Phil Group: Members Posts: 5,758 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
Has anyone installed one of the MC from 914rubber?? $145 is about half of a new 19mm ATE,
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Mikey914 |
Oct 8 2019, 09:08 PM
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#18
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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 |
I few have Ian made a video. Spend the extra couple of bucks and do the easy install, may save a few swear words.
https://www.youtube.com/watch?v=N6ZHK5f_9bE https://900designs-container.zoeysite.com/1...er-cylinder-2-1 Or save a few bucks and install the URO one. (IMG:style_emoticons/default/shades.gif) |
mepstein |
Oct 8 2019, 09:23 PM
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#19
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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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bdstone914 |
Oct 8 2019, 09:46 PM
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#20
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bdstone914 Group: Members Posts: 4,512 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
Phillip - did you install the metal washers under the rubber grommets at the supply lines. Back when I installed this I initially forgot- had the leak, then installed the washer and had no leak for the next 3-4 years until getting back from Okteenerfest- have you ever seen a supply line pop back out later? Make sure the lines going in to the MC are fairly straight with no or little angular pressure. The rubber MC grommets allow for the lines to come in at a bit of an angle (very slight), but too much could cause it to leak. You should be able to wipe everything down and then find where it’s leaking from given how big your leak is. Well lines coming down are dry , lined up fine- BUT Mc will be replaced before car is driven again it looks like but this MC was new less than 5 years ago- hey Eric Shea, is the still under warranty? It might just be the grommets which can be replaced. I would have a new master and a pair of grommets ready. |
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