Sorry for this
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Junior User
Joined: Nov 2010
Posts: 86
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From: Terre Haute IN
Sorry for this
I know this is going to sound dumb but here it goes. On my F4 as I release the clutch it’s almost all the way out before the truck starts to move. Is this correct? I'm over thinking this I’m sure….I hope... I think …..see what happens.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com
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Believe Nothing
Joined: Jun 2004
Posts: 7,513
Likes: 394
From: W. Central FL.
That is not correct. 1"-1 1/2" is usually considered the free play starting adjustment. I believe a minimum of 1" at around 3000 rpm is the final adjustment on the original type clutch. Adjustment may be different with replacement diaphragm type. Stay tuned, someone will correct me if I am wrong. My manual is out in the shop and I am warm and comfortable by the fire.
Roast em' if you got 'em
Joined: Mar 2005
Posts: 21,972
Likes: 9,794
From: Rio Rancho, NM
Nope, thats not right. Hopefully you can take care of it with some adjustment.
Worst case scenario is that its worn too bad and you'll have to replace the clutch
Good luck
Bobby
edit:....and don't be sorry for asking a question. Thats what this forum is for. We're here to help if we can. There's bound to be someone who has tons of knowledge about F4 clutches.
Worst case scenario is that its worn too bad and you'll have to replace the clutch
Good luck
Bobby
edit:....and don't be sorry for asking a question. Thats what this forum is for. We're here to help if we can. There's bound to be someone who has tons of knowledge about F4 clutches.
Hotshot
Joined: Jan 2001
Posts: 16,873
Likes: 3,113
From: SE Wisc. (the Rust Belt)
According the shop manual, page 137:
The only clutch adjustment required is the clutch pedal free travel adjustment. The specified pedal free travel should be maintained for best operation. The need for a clutch pedal adjustment is indicated when the clutch slips, chatter, grabs, or when transmission gear clashing indicates the clutch will net disengage. The free travel should also be checked and adjusted after new clutch parts have been installed.
To check the clutch pedal free travel, depress the clutch pedal by hand and measure the distance the pedal travels before the beginning of the clutch disengagement is felt.
The free travel limits are 1 1/8- 1 3/8 inches for 10 and 11 inch clutches, and 1 3/8-1 5/8 inches for the 12 inch clutches. If the free travel is not within these limits, adjust the travel as follows:
Remove the clutch pedal to release arm rod clevis pin, then rotate the clevis pin, then retate the clevis until the pedal free travel is within limits. Install the clutch pedal to arm rod clevis pin and the cotter pin.
NOTE: If the clutch pedal free travel adjustment does not eliminate the clutch trouble, it will be necessary to remove the e clutch for repairs.
To check the clutch pedal free travel, depress the clutch pedal by hand and measure the distance the pedal travels before the beginning of the clutch disengagement is felt.
The free travel limits are 1 1/8- 1 3/8 inches for 10 and 11 inch clutches, and 1 3/8-1 5/8 inches for the 12 inch clutches. If the free travel is not within these limits, adjust the travel as follows:
Remove the clutch pedal to release arm rod clevis pin, then rotate the clevis pin, then retate the clevis until the pedal free travel is within limits. Install the clutch pedal to arm rod clevis pin and the cotter pin.
NOTE: If the clutch pedal free travel adjustment does not eliminate the clutch trouble, it will be necessary to remove the e clutch for repairs.
Believe Nothing
Joined: Jun 2004
Posts: 7,513
Likes: 394
From: W. Central FL.
According the shop manual, page 137:
The only clutch adjustment required is the clutch pedal free travel adjustment. The specified pedal free travel should be maintained for best operation. The need for a clutch pedal adjustment is indicated when the clutch slips, chatter, grabs, or when transmission gear clashing indicates the clutch will net disengage. The free travel should also be checked and adjusted after new clutch parts have been installed.
To check the clutch pedal free travel, depress the clutch pedal by hand and measure the distance the pedal travels before the beginning of the clutch disengagement is felt.
The free travel limits are 1 1/8- 1 3/8 inches for 10 and 11 inch clutches, and 1 3/8-1 5/8 inches for the 12 inch clutches. If the free travel is not within these limits, adjust the travel as follows:
Remove the clutch pedal to release arm rod clevis pin, then rotate the clevis pin, then retate the clevis until the pedal free travel is within limits. Install the clutch pedal to arm rod clevis pin and the cotter pin.
NOTE: If the clutch pedal free travel adjustment does not eliminate the clutch trouble, it will be necessary to remove the e clutch for repairs.
To check the clutch pedal free travel, depress the clutch pedal by hand and measure the distance the pedal travels before the beginning of the clutch disengagement is felt.
The free travel limits are 1 1/8- 1 3/8 inches for 10 and 11 inch clutches, and 1 3/8-1 5/8 inches for the 12 inch clutches. If the free travel is not within these limits, adjust the travel as follows:
Remove the clutch pedal to release arm rod clevis pin, then rotate the clevis pin, then retate the clevis until the pedal free travel is within limits. Install the clutch pedal to arm rod clevis pin and the cotter pin.
NOTE: If the clutch pedal free travel adjustment does not eliminate the clutch trouble, it will be necessary to remove the e clutch for repairs.
Page 129 suggest the final adjustment made at 3000 rpm.
"On all truck clutches, the centrifugal weights at high crankshaft speed will move the release fingers closer to the release bearing and reduce the pedal free travel by as much as 3/4 of an inch. "
"On all trucks the pedal free travel should be checked while the engine is running at approximately 3000 rpm. The pedal free travel under these conditions must be at least 1/2". Readjust if necessary, to obtain at least 1/2" pedal free travel with the engine running at ~3000 rpm.
My words: If you do not have this clearance at shift rpm it may show up as the clutch slipping when shifting gears. An unskilled or unaware driver may not realize the slippage is occurring.
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