by Richard Miller » Fri Sep 14, 2018 10:05 am
you say "The clutch pedal feels like a brake pedal " do you mean it stays high and solid ? does it travel down a ways before going solid ? I spent quite a bit of time designing the clutch linkage in my car ,, working thru design issues ,, ultimately I figured out why the factories do it the way they do ,, old expression about re-inventing the wheel applies ,,,and ended up sticking my head under dashboards and floorboards before realizing that fact ! its tough job to get right ..if your pedal is going solid before enough travel has been achieved to release clutch you need to see what is stopping it ,,I use same size master and slave ,, both 7/8 ,, your 3/4 to 7/8 gives you a softer pedal at expense of loss of travel ..release bearing should be close to clutch but not touching it to minimize travel needed ,,can you move clutch fork by hand to see how far it moves before hitting clutch ? shouldn't be too far ,, stupid question ,, does it hit crossmember ? my first Crown car the fork hit edge of crossmember and it had to be clearanced ,,does clutch pedal hit floor ? is master cylinder running out of travel and bottoming out before release ? somewhere your clutch is going solid before enough travel has been achieved ,, you have to minimize needed travel , no wasted motion ,, while making sure there is enough to release the clutch about .060 ,,when someone pushes the pedal can you see fork movement ? all a compromise between leverage and travel ,, you need about 100 to 1 leverage to get effort down ,, but that increases travel that same factor ,,how far the pedal travels . if your slave is not traveling full stroke you can try changing master ,,but if slave is bottoming out then adjustment is needed at pivot ball or slave pushrod ,, all comes down to finding what is stopping the travel
Richard Miller
West Covina, Ca
'65 V8 Vair