 First test drive, ready for tahoe |
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| EdwardBlume |
 May 10 2010, 06:16 PM
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#21
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914 Wizard  Group: Members Posts: 12,338 Joined: 2-January 03 From: SLO Member No.: 81 Region Association: Central California 
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Holy crap... I'm glad you guys are OK...
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| SirAndy |
May 10 2010, 06:26 PM
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#22
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Resident German Group: Admin Posts: 41,677 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
I doubt the 914 has a true dual setup.
When bleeding the brakes on a 914, if i open the bleeder screw on just one caliper, the brake pedal goes to the floor with the first push and you will NOT be able to pump it back up to get any brake engagement on any of the wheels until the bleeder screw is closed. In a scenario where one caliper splits/explodes or a line pops, one would expect the same behavior. Which is, sudden and complete loss of all 4 brakes. (IMG:style_emoticons/default/stirthepot.gif) Andy |
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| Lennies914 |
May 10 2010, 07:48 PM
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#23
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Slacker Group: Members Posts: 828 Joined: 9-January 10 From: NorCal Member No.: 11,216 Region Association: Northern California  |
Just got home and I'm cathing up on the thread. Trust me, I was pumping the hell out of the brakes. I understand the theory on the resivoir being divided. But now that everything is back together and rebled, I can lock up all four brakes. (IMG:style_emoticons/default/confused24.gif) The master cylinder and all four calipers are brand new (rebuilts) and seem to function. So do I need to investigate further? Is anyone going to want to be in front of me in the caravan to Tahoe? (IMG:style_emoticons/default/unsure.gif)
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| underthetire |
May 10 2010, 08:43 PM
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#24
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
QUOTE(Lennies914 @ May 10 2010, 06:48 PM)  Just got home and I'm cathing up on the thread. Trust me, I was pumping the hell out of the brakes. I understand the theory on the resivoir being divided. But now that everything is back together and rebled, I can lock up all four brakes. (IMG:style_emoticons/default/confused24.gif) The master cylinder and all four calipers are brand new (rebuilts) and seem to function. So do I need to investigate further? Is anyone going to want to be in front of me in the caravan to Tahoe? (IMG:style_emoticons/default/unsure.gif) Able to lock up all 4, now thats impossible! Actually, I lost all the fluid from a bad caliper when I first got the car. It would just barely brake. |
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| McMark |
May 10 2010, 09:27 PM
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#25
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
The factory manuals state that it's a dual circuit system and that you should still have braking power in the event of a line failure (or similar). BUT, there seems to be an overwhelming lack of information regarding how when and why this safety feature comes into play.
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| SirAndy |
May 10 2010, 09:31 PM
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#26
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Resident German Group: Admin Posts: 41,677 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(McMark @ May 10 2010, 08:27 PM) The factory manuals state that it's a dual circuit system and that you should still have braking power in the event of a line failure (or similar). BUT, there seems to be an overwhelming lack of information regarding how when and why this safety feature comes into play. I had a similar failure as 'Lennies914'. The drivers side rear caliper blew up and that resulted in a INSTANT loss of all brakes. The pedal went straight to the floor and pumping did not yield any stopping ability ... (IMG:style_emoticons/default/popcorn[1].gif) Andy |
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| Jeffs9146 |
May 11 2010, 12:02 AM
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#27
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Ski Bum Group: Members Posts: 4,062 Joined: 10-January 03 From: Discovery Bay, Ca Member No.: 128 |
Having been in the car I can say that there was very minimal, if any, ability to stop the car! I felt it slow as Lennie pressed the brake but it would not stop if there was nothing else to slow it down even with the pumping!! Thats why I yelled "grab the e-brake"!
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