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CorsePerVita
Joined: 25 Jul 2008
Posts: 1992
Location: Redmond, Oregon
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 Posted: Sun Jun 13, 2010 3:51 pm Post subject: Aaaaaaand just when things go smoothly... |
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the master cylinder fails on me while I'm driving the 914. Yay!
Ever have one of those weeks where you just wanna scream and break some shit? Seriously just want to scream. Timing belts on the Ducati, wiring gremlins on the zx2, engine rebuild on the 924, working on the airflow sensor on the 944 (and more wiring gremlins) and then routine maintenance on the 250... then the exchanger seals and exhaust fixes and valves and pushrod seals on the 914...
Ahhhh ... everything is done. I can finally drive. OH JUST KIDDING I HAVE NO BRAKES! 
Ok rant over.
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- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS |
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CorsePerVita
Joined: 25 Jul 2008
Posts: 1992
Location: Redmond, Oregon
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| Posted: Sun Jun 13, 2010 4:09 pm Post subject: |
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Here is my re-enactment.
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- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS |
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Rasta Monsta
Joined: 12 Jul 2006
Posts: 11733
Location: PacNW
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| Posted: Sun Jun 13, 2010 4:38 pm Post subject: |
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Is the car OK? Good news is, 911 master bolts in for superior braking. As in, superior to a 911.
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Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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CorsePerVita
Joined: 25 Jul 2008
Posts: 1992
Location: Redmond, Oregon
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| Posted: Sun Jun 13, 2010 4:55 pm Post subject: |
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Yeah car is fine, didn't hit anything and stopped just in time.. Wasn't a pleasant experience. BUT I do have the 19mm 911 master cyl to replace it.
_________________
- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS |
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931Owner
Joined: 14 Feb 2009
Posts: 352
Location: Chicago NW Suburbs
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| Posted: Mon Jun 14, 2010 2:07 am Post subject: |
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Gee... I was thinking....NO!!! Not another accident as I began reading!
Glad you & the car are good! Did you use your hand/emergency brake to stop?
Not many people do it... but if you 'keep the hand brake button in' and while lifting the hand brake you can use the emergency brake as it was designed and help slow you down in an emergency.
You keep the button pushed in so that when you hear/feel the brakes lock up you just let the handle down then pull back up.
I never did understand why the yank tanks had foot emergency brakes because they lock up the brakes in an emergency and if you reach down for the release lever you can't see the road.
It takes a long time to master and to have it happen as second nature but just as part of your normal driving routine just do 'hand brake stops' to learn how quickly it will take to slow you down and practice modulating the hand brake so you don't lock the rear wheels. Then have someone test you by saying 'hand brake stop' (or something like it) when you're not expecting it.
Did you know my Fiat 600 had copper brake lines 'from the factory?' At least I know they won't erode.
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1980 Turbo
-too many cars and too many motobikes |
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Joes924Racer
Joined: 03 Nov 2002
Posts: 11964
Location: Oregon, Denver Colorado native!
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| Posted: Mon Jun 14, 2010 2:22 am Post subject: |
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Good thing is you did not break nothin.. and stopped.
Your right its a normal sunny day 4 a get down and drive
kind a thing ..bein where i am and u r, 'i was exspectin
youd hit a tree.
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1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
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CorsePerVita
Joined: 25 Jul 2008
Posts: 1992
Location: Redmond, Oregon
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| Posted: Mon Jun 14, 2010 3:29 am Post subject: |
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| 931Owner wrote: | Gee... I was thinking....NO!!! Not another accident as I began reading!
Glad you & the car are good! Did you use your hand/emergency brake to stop?
Not many people do it... but if you 'keep the hand brake button in' and while lifting the hand brake you can use the emergency brake as it was designed and help slow you down in an emergency.
You keep the button pushed in so that when you hear/feel the brakes lock up you just let the handle down then pull back up.
I never did understand why the yank tanks had foot emergency brakes because they lock up the brakes in an emergency and if you reach down for the release lever you can't see the road.
It takes a long time to master and to have it happen as second nature but just as part of your normal driving routine just do 'hand brake stops' to learn how quickly it will take to slow you down and practice modulating the hand brake so you don't lock the rear wheels. Then have someone test you by saying 'hand brake stop' (or something like it) when you're not expecting it.
Did you know my Fiat 600 had copper brake lines 'from the factory?' At least I know they won't erode. |
It was weird because I figured something was wrong, I came to a stop and my pedal had a lack of pressure. I went "oh god.. please no. This is bad." as I came to the next stop just to anticipate I tested the pedal. Sure as hell, no brakes. I quickly applied pressure with the e-brake to start slowing down while pumping the brake, eventually it built SOME pressure, wasn't much, but helped...
The e-brake didn't really have enough oomph to do a lot, but if I planned accordingly would work enough to stop in most cases. What I quickly learned was that if i pumped the brake I could get enough pressure for a short enough time to come to a stop.
If I hit the brake, no pressure. Pump the brake like a son of a bitch for a few seconds and it would build pressure. Holding the foot down with pressure would keep the pressure. Let off, re-apply, gone.
Would appear my master cylinder has completely gone to crap. This happened once before, but it was for such a brief moment I thought perhaps there was simply air in the line. I bled the brakes and all seemed well. I realize now, due to the symptom, it was cause for a master cylinder issue, not air.
What I had to do was use a mixture of my e-brake and my brakes. Pump the brakes enough to get pressure to begin to stop and use the e-brake to also apply. It wasn't holding well on hills, so using the e-brake on hills to keep me rolling backwards worked fine while I fluttered the clutch and gas to get me up hills. It got me home in a pinch. I'm just glad I learned to do that when I was younger when my dad said "You never know when someday your brakes go out and you need to learn this..."
As rasta mentioned the 19mm is an upgrade, I do have one, so that's going in on my upcoming day off. Really wasn't looking forward to doing brakes but whatever lol.
I totally agree that the foot e-brakes are retarded.
_________________
- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS |
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the_mad_electrician
Joined: 16 Nov 2009
Posts: 1073
Location: Central Georgia
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| Posted: Mon Jun 14, 2010 6:44 am Post subject: |
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I hate to make light of your situation, but I about laughed my butt off when I saw your little comic strip! 
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81 924 N/A
2004 Ranger "Edge"
2005 Mazda 6 |
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CorsePerVita
Joined: 25 Jul 2008
Posts: 1992
Location: Redmond, Oregon
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| Posted: Mon Jun 14, 2010 11:04 am Post subject: |
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| the_mad_electrician wrote: | | I hate to make light of your situation, but I about laughed my butt off when I saw your little comic strip! |
That's all i was trying to do, i'm glad you enjoyed it
_________________
- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS |
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TBrown
Joined: 28 May 2009
Posts: 72
Location: Noblesville, Indiana
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| Posted: Mon Jun 14, 2010 11:51 am Post subject: |
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Hey CorsePerVita im glad your ok and I know this is OT but do you have any pictures of your CB360 cafe?
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Tangerine Dream- 1980 924 Turbo
Silver Surprise- 1979 924 Turbo
1977 International Scout ii
1982 Yamaha Sr185
1978 Kawasaki KZ650
1974 Honda CB360
1973 Honda CB750 |
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CorsePerVita
Joined: 25 Jul 2008
Posts: 1992
Location: Redmond, Oregon
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| Posted: Tue Jun 15, 2010 1:52 am Post subject: |
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| TBrown wrote: | | Hey CorsePerVita im glad your ok and I know this is OT but do you have any pictures of your CB360 cafe? |
I have pictures of it stripped down to the frame, it's not finished yet though. If you're still interested I can post some stuff.
_________________
- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS |
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fiat22turbo
Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR
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| Posted: Tue Jun 15, 2010 2:06 am Post subject: |
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Good job on not having an accident! Sucks though.
I'd read somewhere that the 914's can stand to have their master cylinder mounting areas beefed up to improve pedal feel and reduce the chance of a failure in the mounting solution used.
Not sure if you want to tackle something like that while you've got so many other things going on, but it seems to be a good thing to look into.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose) |
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CorsePerVita
Joined: 25 Jul 2008
Posts: 1992
Location: Redmond, Oregon
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| Posted: Tue Jun 15, 2010 2:10 am Post subject: |
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| fiat22turbo wrote: | Good job on not having an accident! Sucks though.
I'd read somewhere that the 914's can stand to have their master cylinder mounting areas beefed up to improve pedal feel and reduce the chance of a failure in the mounting solution used.
Not sure if you want to tackle something like that while you've got so many other things going on, but it seems to be a good thing to look into. |
As in reinforced where it is mounted?
_________________
- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS |
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fiat22turbo
Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR
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CorsePerVita
Joined: 25 Jul 2008
Posts: 1992
Location: Redmond, Oregon
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| Posted: Tue Jun 15, 2010 2:24 am Post subject: |
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Interesting - I will look into it.
_________________
- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS |
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