Clutch cable broken
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Clutch cable broken
We just had the deepest snow we have had in more than 10 years. I decided to pull my Bobcat to do some clearing and got thru the first day when my son said the truck would not drive and smelled like clutch burning. I found the clutch pedal had no pressure until almost at floor. I think cable broke or possible slave cylinder? This is a 1984 f-250 with 6.9. It is on side of road now with snow pushed around it. Clear and cold today so I guess I will see what is wrong. Ever replaced this cable anyone? I sheared the pin that clutch pedal pivots on a few years ago. Lot of pressure on this.
Post Fiend
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From: Charles Town, W bygod Va
A hydralic failure will not cause clutch slippage, but will not let it disengage when you push the pedal in. Sounds to me like the clutch itself is shot. Remove the inspection plate and take a look.
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Ok, just looked and there is no cable just a pushrod that goes thru firewall to the slave cylinder. I just looked and saw rod moving when pedal moves. There is no resistance with pedal travel other than compression spring on linkage where the pedal pivot is. I see no fluid movement at slave cylinder.
My son said pedal traveled half way to floor before any engagement pressure was felt for a few shifts, then no pressure and could not get shift lever to move or shift to neutral when it got stuck.
Where is inspection plate? Visible from under vehicle at bell housing? Guess I need to get truck out of snow and to dry place to climb under and see.
My son said pedal traveled half way to floor before any engagement pressure was felt for a few shifts, then no pressure and could not get shift lever to move or shift to neutral when it got stuck.
Where is inspection plate? Visible from under vehicle at bell housing? Guess I need to get truck out of snow and to dry place to climb under and see.
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Hydraulic clutch
I guess I do not know enough to diagnose this. The correct parts and their names are eluding me. I guess I have been working on old motorcycles too long. The actuator arm from pedal thru firewall has an adjustment screw on the pedal side of firewall. I guess this arm or pushrod goes directly into a master cylinder on engine side of firewall. I do not see any fluid movement in the reservoir when clutch pedal is pushed. The slave cylinder is at other end of hydraulic line where it actuates clutch. Is there any part diagrams or repair manuals showing this system? Are my part names and description correct? 
Post Fiend
Joined: Nov 2005
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From: Charles Town, W bygod Va
Your terms are correct, pushrOd attaches to the master which sends fluid down to the slave. The burning smell is what makes me think your clutch is shot. If the clutch is good and hydrLics failed, it should try to take off if you start it in gear with the clutch depressed and in gear. If you start it in neutral you won't be able to get it in gear. What,s it doing?
Inspection plate is underneath. You won't be able to tell much unless the clutch is really bad.
Inspection plate is underneath. You won't be able to tell much unless the clutch is really bad.
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No clutch pressure at pedal. Can not shift gears easily. My son told me he was in 3rd when he stopped and pushed clutch in, motor stalled, and could not shift again. When I got there he said they tried starting in 3rd gear and that is when they smelled burning clutch.
Don't think starting in granny gear to see if clutch disengages is helpful since gear shift will not move in or out of gear easily.
Don't think starting in granny gear to see if clutch disengages is helpful since gear shift will not move in or out of gear easily.
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This is a 4wd. Is it ok to pull it to place I can work on it? It was in 4wd with hubs locked when it stopped.
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From: Kuna ID
Just unlock the hubs and put the transfer case in neutral before you pull it. The firewall where the clutch master cylinder mounts is a weak point on these trucks as well. Have someone push on the clutch pedal while you watch the clutch master and see how much it moves. I got a truck real cheap because the fella thought the clutch was gone and it was just a torn firewall.
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Since the pedal has no pressure I don't think movement of the firewall will happen. Wouldn't pressure plate cause the hydraulic pressure to move the pedal back up. I guess if slave cylinder went bad it could be stuck in depressed condition not allowing fluid to move the master cylinder and pushrod back to pedal. I just thought fluid level in master cylinder would be low in this case.
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