1986 F 250 Hydraulic Clutch fails to dis-engage clutch.


Old 12-19-09, 02:47 PM
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Join Date: Dec 2009
Location: California
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1986 F 250 Hydraulic Clutch fails to dis-engage clutch.

1986 F250 3/4ton 7.5L/460cu. in. 2wd
I just replaced the Clutch assy. and then the Clutch Master and Slave Cylinder. The clutch hydraulic system fails to dis-engage. Firewall behind clutch master is in good condition. Also I observe clutch fork movement but doesn't seem to be enough... Any suggestions?
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Old 12-19-09, 02:50 PM
Join Date: May 2006
Location: Iowa!!!!!
Posts: 3,684
It could have air in the system = bleed it out. Or could you have put the clutch disc in backwards = will not disengage even if every thing else is fine.
Old 12-19-09, 06:07 PM
Join Date: Oct 2009
Location: USA
Posts: 109
I see you mentioned the firewall and you're sure it's not flexing? Because what you're describing sounds like the firewall issue. Did you replace the hose? If nothing else, bleed, bleed, and bleed some more. They can be very difficult to get all the air out.

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