| Author |
Message |
DGS (Dgs)
Junior Member
Username: Dgs
Post Number: 152
Registered: 5-2003
| | Posted on Sunday, July 06, 2003 - 7:11 pm: | |
On a non-ABS (which presumably an '87 is) 328, the linkage from the top of the brake pedal to the bell crank is adjustable, turnbuckle style. The bell crank is under an access plate next to the master cylinder servo, accessible from under the front hood, once you remove the fiberglass panel.
It looks like the stoplight switch might double as the pedal return stop.
One thing to check is the engine manifold pressure. I had a similar brake feel that turned out to be an engine issue -- it felt like there was vacumn to the servo, but when measured, the manifold pressure was way off (car way too rich). When I adjusted the mixture, the manifold pressure returned to normal, and the servo boost returned. |
Mark Foley (Sparky)
Junior Member
Username: Sparky
Post Number: 64
Registered: 3-2002
| | Posted on Sunday, July 06, 2003 - 1:06 pm: | |
Perhaps there is too much freeplay on the pedal linkage. On older US cars the freeplay to the master cylinder can be adjusted. You have to be careful not to adjust it so the vacuum assist is "on" all the time. Looking at the parts manual, I'm not sure if or how to adjust this free play on the 3X8's.
Mark |
Lawrence Coppari (Lawrence)
Member
Username: Lawrence
Post Number: 701
Registered: 4-2002
| | Posted on Saturday, July 05, 2003 - 2:21 pm: | |
A few years ago I began using a pressure bleeder. I put about 8-10 psi on the reservoir then open the bleed nipples in the order of RR, LR, RF, LF (like previous lister suggested). I find I get better results using this method as opposed to drawing it out by vacuum at the wheel. I never have to do it twice anymore.
Of course, air in your system might not be your problem. Hopefully it is because it costs little to remedy. |
david handa (Davehanda)
Intermediate Member
Username: Davehanda
Post Number: 1146
Registered: 5-2001
| | Posted on Saturday, July 05, 2003 - 1:30 pm: | |
Check valve? There is some info on this in the archives. My sympton was the pedal going almost to the floor like it had no power assist upon starting the car in the morning. Pumping it once or twice brought it to normal, and did not recur until starting the car the next day...
Welcome to F-chat, loved your tv show... :-) |
Henryk (Henryk)
Member
Username: Henryk
Post Number: 875
Registered: 8-2001
| | Posted on Saturday, July 05, 2003 - 12:56 pm: | |
Two possibilities I can think of:
One: Brake pads too thin
Two: Bleeding technique incorrect. i have heard that one bleeds the brake in a particular order; bleed the farthest one away, from the master cylinder, then work the next closer one, etc., till you end up bleeding the closest one last. Then repeat the process for good measure. |
martin lawrence (Martlaw)
New member
Username: Martlaw
Post Number: 1
Registered: 7-2003
| | Posted on Saturday, July 05, 2003 - 12:42 pm: | |
brake pedel has excessive travel before brakes applied. Once brakes applied pedel solid. Have fitted stainless flex hoses and bled system twice but travel is still there (as it has always been)
Any advice would be appreciated. |