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Need Help with a clutch Issue

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Old Mar 29, 2012 | 02:07 AM
  #1  
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Need Help with a clutch Issue

Hello all

I cant seem to figure out what is wrong with my clutch. It started to have a hard time disengaging so I adjusted out the release rod to try to take up some slack. That helped for about a day then it was back to the same problem. I figured that my disc was probably worn, so I replaced the clutch.
This still didn't solve the problem. The release rod is adjusted all the way out but there is still tons of slack between that and the clutch fork,
I just cant seem to figure it out.
Any Help would be greatly appreciated thanks.
 
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Old Mar 29, 2012 | 03:57 AM
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Originally Posted by drexer13
Hello all

I cant seem to figure out what is wrong with my clutch. It started to have a hard time disengaging so I adjusted out the release rod to try to take up some slack. That helped for about a day then it was back to the same problem. I figured that my disc was probably worn, so I replaced the clutch.
This still didn't solve the problem. The release rod is adjusted all the way out but there is still tons of slack between that and the clutch fork,
I just cant seem to figure it out.
Any Help would be greatly appreciated thanks.
You need to be more specific when asking a question like this.

What year is the truck, what size is the engine? Is it 2WD or 4WD?
 
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Old Mar 29, 2012 | 09:04 AM
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Sorry,
I wrote that post twice because I couldn't figure out how to describe the problem. In the first version I stated that the truck is a 65 f100 long box, 352 4 speed.

Thanks for pointing that out.

Again any help with this would be greatly appreciated.
 
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Old Mar 29, 2012 | 10:10 AM
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For what it’s worth, I had similar issues when I replaced the clutch in my ’63 with the 262 i6 engine. After adjusting the clutch rod all the way out I found that I needed about ½” to ¾” more length. I spend some time confirming that I got the correct part and didn’t do anything wrong in the installation. I searched this forum for clutch postings and saw that it’s not an uncommon issue… I finally had the adjuster rod modified and lengthened by 1 ½”. Maybe you can post the part # of the replacement clutch and let NumberDummy confirm that it’s correct for your truck.
 
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Old Mar 29, 2012 | 11:20 AM
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I have seen the pressure plate go bad before if the internal springs fail / or the fingers ( what come in contact with the throw out bearing ) break this will give give you a greater gap at the pedal adjustment. Also the pedal will feel very hard to push.
 
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Old Mar 29, 2012 | 01:09 PM
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Thanks for the posts so far.
Mntbuggy: the peddle is very hard to push. I feels like it never gets past the initial hump in pressure. (if that makes any sense).
I thought that the fingers might have been broken on the old pressure plate, but would a new one be broken right out of the box.
The new clutch I put in feels just like the clutch I pulled out.

Pburress: I have thought about making a longer rod and seeing if that would solve the problem, But I would still wonder why it did it in the first place.

I don't have the part numbers anymore. I swapped the clutch out a few years back. When It still didn't work I parked the truck for a while and am just now getting back to it.
I know I'm lame, what can I say.

thanks a lot for all the help so, if this is a common problem then has any one found a solution besides making a longer adjustment rod?
 
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Old Mar 29, 2012 | 04:36 PM
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I talked to the parts guy at our local ford dealership, He's been there for over 30 years and is full of useful information. He told me that it is such a common problem for older f series trucks that you can actually buy a longer adjustment rod form Napa. He didn't know what the cause was but he did tell me that the longer rod is the best option.

The Napa rod is about 2 inches longer than the original, and only costs like $16.00. The Napa here actually stocks it.
If any one is interested the Napa parts number is 615-1116

Ill get back on after I put it on and let everyone know how it worked,
Thanks again for all the help I really appreciate it.
 
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Old Mar 29, 2012 | 04:45 PM
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C5TZ-7521-A .. Clutch Adjustment Rod-6 1/2" long-Includes Extension / Obsolete

DOTZ-7A504-A .. Clutch Adjustment Rod Extension-2 3/8" long / Obsolete

Applications: 1965 F100/250 4WD / 1965/66 F350 / 1966 F250 4WD.

Extension applications: All of the above, 1965/76 F100/350 2WD & 1969/74 Econoline.
 
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Old Mar 29, 2012 | 04:57 PM
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It sounds like the new pressure plate has a shorter throw then the stock one, that's all. I'm going to need to change the clutch in my truck this summer probly and i found a few different options including a dual friction plate but I'm not sure what ill put in it yet, I'm running around 400hp and 500ftlbs and go offroad quite a bit so I need that clutch to hold.
 
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Old Mar 29, 2012 | 06:03 PM
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I sounds like the duel friction would be put to good use in your truck. I have used a Centerforce duel friction in my WRX. There was a lot of extra holding power and it didn't affect drive-ability at all. The only draw back is their pretty spendy.
 
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Old Mar 29, 2012 | 07:09 PM
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Yeah $400 but i think it will last longer then a stock replacement.
 
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Old Mar 29, 2012 | 08:51 PM
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I have one of the center force pressure plates in my Big block chevelle and love it. We also put one in my friends 454 chevy 4x4 aprox 450 hp and it holds great.
 
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Old Mar 29, 2012 | 09:31 PM
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Fix your cab mounts.

Number one cause of this issue with the clutch.

Check the Z bar bushings. They possibly left along with Elvis.

Garbz
 
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Old Mar 30, 2012 | 12:37 AM
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I had similar issues with my 66. I took the z bracket, the rod, and the piece from under the dash, and had them all redone. The holes had all gone oval, and the rod was grooved bad on both ends. I had a fab place here in Denver, weld the holes shut, and then punch new ones, they ground off the stud, and replaced it on the z bracket, and then remanned the rod. When I reassembled, I went from the bottom 1 inch being the only clutch action to the top 2 inches being the action. It kind of amazed me that the little oval here and the little grove there added up to that much change in the action.
 
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Old Mar 30, 2012 | 12:58 AM
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That makes sense Broomfield, the clutch fork dosn't really move that much. I think that's what Im going to have to do. Im looking at new bushings now and inspecting everything else to see what is going to have to be done to get this thing working again.

Just a little update, I put the new longer push rod in and it worked great the first 3 times I pushed in the clutch. On the 4th time the clutch pedal twisted right off. Im not sure what Im going to do with that yet. But Im starting to remember why I let the thing sit for so long.
 
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