ZF5 shifting issue ?
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Mountain Pass
Joined: Aug 2014
Posts: 158
Likes: 3
From: Venice FL.
ZF5 shifting issue ?
I recently bought a 93 F350,7.5,4wd,ZF5, 60,000 miles. This is the first truck I have had with this trans.The clutch almost feels like it is not disengaging completely, unless I am really careful about depressing it fully. If I don't , and if I don't shift slowly,sometimes I feel a slight gear roll.(no grinding at all) Can happen in any gear. It has an external slave,which is moving 7/16" when depressed.Manual says that's correct.Tried new ATF, then tried royal purple. No real difference Do these things just shift like this? The last Ford I had was an 86 F250,351,4wd,4 sp.(not sure what one) Seemed to shift easier.
Cargo Master
Joined: Jan 2004
Posts: 3,118
Likes: 149
From: South Dakota
When you are at a dead stop how far do you have to let the clutch pedal up before the truck starts to move?
How much free play do you have? The free play is the amount you can push the pedal down before it pushes somewhat harder, at which point the throwout bearing starts pushing on the pressure plate.
How much free play do you have? The free play is the amount you can push the pedal down before it pushes somewhat harder, at which point the throwout bearing starts pushing on the pressure plate.
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Mountain Pass
Joined: Aug 2014
Posts: 158
Likes: 3
From: Venice FL.
So if I am on an incline ,not running,in gear, and I start pushing the clutch pedal down, it goes down about 2/3 to 3/4 travel before I start to roll. Letting it out running at a dead stop, it starts to move about 1/4 to 1/3 travel while coming up.
Cargo Master
Joined: Jan 2004
Posts: 3,118
Likes: 149
From: South Dakota
I think these are supposed to be self-adjusting so there may not be an adjustment. I'm not familiar with the external slave cylinders on these.
Also make sure you have enough brake fluid in the clutch master cylinder.
Thread Starter
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Mountain Pass
Joined: Aug 2014
Posts: 158
Likes: 3
From: Venice FL.
Think I might have found my shifting issue. Loose clutch master cylinder bushing. Guess its a common problem.This looks like a nice fix. Where can one get that Heim joint?Anyone had this problem?
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