86 4x4 ranger no go - Ranger-Forums - The Ultimate Ford Ranger Resource


Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

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Old 03-09-2015
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86 4x4 ranger no go

have a 86 ford ranger 2.3 runs great, clutch pedal has a little push tention but not too much, transfer case ingages front drive shaft, 5 speed i'm thinking fm145, but truck doesn't even try to move, no noise, shifter feels like it tries to engage all gears, but no grinding when pulling down road while shifting without applying clutch, clutch resevoir is full of fluid, any ideas before i tear into it? any way to determine if it's the clutch? transmission? or transfer case?
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Old 03-09-2015
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You have Mitsubishi FM145 5-speed and a Borg Warner 1350 Electric transfer case in an '86 4x4

I would remove electric shift motor and try to manually shift transfer case, it could be stuck in Neutral, while technically there is no "neutral" it is there none the less.

I believe this Shiftster video shows the transfer case shift positions

It is either that or the clutch disc is bad, which you would have notice at least a few weeks ago with slipping.
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Old 03-09-2015
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i beleave the transfer case has linkage going to it, if i pull the bottom pan on the transmission could i see something turning inside the transmission if the clutch is still good? and in 4wd i can't turn the front driveshaft with the hubs unlocked
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Old 03-09-2015
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If you have a Manual shift transfer case then what happens when you shift it?


There are two shafts in a manual transmission, Input and Output
The clutch disc is connected directly to the Input shaft of the transmission, so that shaft is always spinning at Engine RPMs if clutch pedal is out and clutch disc is good.
Pushing in the clutch pedal allows the Input shaft RPM to be different than engine RPM, disconnects it from Flywheel, allowing you to shift gears to match Output(wheel) shaft RPM

The transmission Output shaft is connected directly to the drive line, but in this case via the transfer case.
The Output shaft is always turning at Wheel(drive line) RPMs

Yes, if you crank engine or start it you could/should see input shaft spinning if clutch disc, pressure plate and flywheel are working.
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Old 03-10-2015
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can a clutch be so bad that input shaft wouldn't even try to spin in neautral
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Old 03-10-2015
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Quote:
Originally Posted by midmofarmer View Post
can a clutch be so bad that input shaft wouldn't even try to spin in neautral
Input shaft also sits in the Pilot bearing in the Flywheel which causes it to spin a bit, and clutch disc that was wore down enough so it wouldn't engage at all would probably make noise as the rivets on the disc were digging into the flywheel surface
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