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Clutch?


tyates007

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Just looking for a quick opinion. We were coming home tonight me about a half hour from getting there at a stop light the truck did not want to go into gear. Truck has a super 10 standard transmission. When trying to put into gear it just wanted to grind. My clutch pedal was also much softer. I had a bunch of linkage replaced a few weeks ago due to good old age and rust. I am assuming since truck has not had an issue prior it is probably an adjustment issue vs a broken part. For the rest of the way home I just downshifted and left in gear for stop lights. Thoughts and opinions appreciated.

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Sounds like clutch brake, hopefully you can just readjust it. Make sure your not pushing the peddle all the way down when shifting and only pushing it all the way at a stop long enough to get it into gear then letting it back up half way.

If it gets real bad you can turn the truck off and put it in gear then restart the truck.

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I was told at my last service that 75% of my clutch brake was gone. Don't know how long that last 20 percent will last. I am having no symptoms, but I have an auto shift and only occasionally need to engage the clutch brake. Most of my routes have few stop lights. If I change the clutch brake, a new clutch is going in at the same time along with anything else that requires pulling down the transmission. Only want to have to do that once.

 

Rod

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If you have a hydraulically operated clutch, the master cylinder and or slave cylinder may have a problem. That could be why the clutch felt soft. Check the fluid level in the resivior.

Last winter mine was leaking at the slave cylinder. Found a cup seal at Napa for 3 bucks that fit the bore. Rebuilt the slave cylinder and also replaced a pin in the linkage. It was worn down about 1/8" so that had a lot of pedal travel to take up that much plan .

Now it works better than all the time we have owned the truck.

 

Hope it is simple, Vern

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Talked to my trusted Mechanic today and he said not to worry. Unless I get stuck in an intersection and the truck won't go in gear, that's when you have a problem. My clutch is hydraulic and I don't engage the clutch brake unless I need to to allow the transmission to fall into gear. It always happens so I won't worry about it for a while yet.

 

Rod

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That would be a pretty expensive clutch brake. They usually run $30 or so for a 1 piece and $60 for a 2 piece although everything on this Kenworth is way more expensive than my Volvo was.

 

Try checking at a Pete dealer for your parts. They is often a large difference in prices between them for the same part. You can also go aftermarket for a lot of items.

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Try checking at a Pete dealer for your parts. They is often a large difference in prices between them for the same part.

 

I found the same to be the case when I was rigging up my T2000 eight years ago. You'll find, though, that it only works for parts that are common to both makes. A Peterbilt dealer can't buy a Kenworth-only part from Paccar Parts, and vice-versa.

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If it is your clutch brake, don't panic...just keep the clutch depressed for about ~6 to 8 seconds and it will go into gear....it takes that long to settle the turning shaft to a stop.

Also I had trouble with my hydraulic clutch in my 610 Volvo, and it was all in the hydraulic lines..

I would thoroughly check that out first.

Good luck,

Cheers,

Bob

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