At 08:20 PM 2/15/97 -0500, you wrote:
>On Fri, 14 Feb 1997, William Mills wrote:
>
>> I need to know what to check first about my clutch operation. Clutch
>> was operating fine until today. While sitting at a red light with the car
>> in gear and clutch pedal depressed, I suddenly could feel the car trying to
>> pull forward. Of course the clutch pedal was already depressed so I quickly
>> popped the shift out of gear to avoid moving into the car stopped in front
>> of me. As I left the light I could tell that my friction point was now at
>> the bottom of the clutch travel. Pumped the pedal a couple of times and the
>> proper friction point was restored (about one-third from the floor). I
>> pulled off to a safer area to try it out. Sure enough, as I held the clutch
>> in the clutch was creeping to engage. Checked the fluid level in the clutch
>> master cylinder. It was down a little but certainly not enough to have
>> sucked air into the clutch hydraulic system. I went ahead and topped up the
>> reservior anyway. I assume that the fluid is leaking internally by the
>> seals in either the clutch master cylinder or the slave cylinder. No
>> evidence of any external leakage yet.
>>
>> Now finally to the question, how do I find out which component is in need
>> of rebuild or replacement. My first thought is to go ahead and replace the
>> slave cylinder and hose. New slaves are not that expensive and this job
>> would be much easier than removing and overhauling the master cylinder. Is
>> there any way that I can determine where the problem lies, master cylinder
>> or slave?
>
>>
>Check the slave cylinder for leakage. If there is none, pull back the
>dust cover on the slave cylinder. If no fluid comes out, the problem is
>in the master cylinder. This is pretty much the classic symptom of a
>master cylinder with a deteriorating primary seal.
>
> Ray Gibbons Dept. of Molecular Physiology & Biophysics
> Univ. of Vermont College of Medicine, Burlington, VT
> gibbons@northpole.med.uvm.edu (802) 656-8910
>
>
>
I had a similar problem with my '76. I went through the hydraulics
and found no problem. It turned out that the diaphragm spring on the clutch
collapsed. It was a Borg and Beck clutch, too!
Rodney McDonald
Spanish Fort, AL
'76 'B 393703
|