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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

1st/Reverse grinding like hell.

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Old Dec 26, 2010 | 03:45 PM
  #1  
mOROTBREATH's Avatar
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1st/Reverse grinding like hell.

I have the "3-STD" on the column in my '56. It is of course not synchronized in either 1st/reverse gear.

Ever since I got the motor to run, whenever--at a complete stop--I put it in either of those two gears it will grind the s-h-i-t out of 'em. I know that isn't normal. However, if I put it in 2nd or 3rd first, it will shift into 1/R smooth as butter!

So I readjusted the clutch so it theoretically disengages it "more" and also fixed up the gear lever linkages so there have very little play--before they were somewhat loose.


What the heck? I know I can't shift into them at speed, but at a complete stop!?!?!
My dad keeps telling me the same thing about this truck--"That was one of the easiest, smoothest cars I have ever driven, and was much smoother than the other '56's...."

He knows for a fact this wasn't happening before(long time ago). What could be wrong? Everything in the clutch related department is new and the column is greased to no end.

Thank you very much.
 
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Old Dec 26, 2010 | 03:58 PM
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I'm not positive on this but it sounds like, from your description it might be a throw out bearing problem.
 
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Old Dec 26, 2010 | 05:06 PM
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Clutch not disengaged

Sounds like your clutch is not dis-engaged when you push the pedal down. Check where the clutch starts to pick up a load. Start the truck in gear with the clutch pushed in. See if the clutch starts to pull on or real close to the floor. If your clutch is not completly dis-engaged about 1/3 to 1/2 of the way from the top of the throw it needs to be adjusted up. Lengthen the adjustment so that the rod is longer and the thro-out bearing is picking up sooner. Also make sure the clutch fully engages with the pedal out or you will slip the clutch because the thro-out is always holding the clutch in a bit.
 
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Old Dec 26, 2010 | 05:07 PM
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Did you clean and put a smear of grease in the splines on the input shaft? If not, the clutch plate could be "hanging", and causing it to seem like the clutch is not releasing completely.
 
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Old Dec 26, 2010 | 05:09 PM
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If your idling too fast it will also cause the trans to grind going into first/reverse.
 
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Old Dec 26, 2010 | 06:38 PM
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Originally Posted by Mervy49
I'm not positive on this but it sounds like, from your description it might be a throw out bearing problem.
I had a feeling. I am at the point to where if I have to disassemble the motor and trans, I think I might just commit suicide.
Originally Posted by Marty Smilt
See if the clutch starts to pull on or real close to the floor. If your clutch is not completly dis-engaged about 1/3 to 1/2 of the way from the top of the throw it needs to be adjusted up. Lengthen the adjustment so that the rod is longer and the thro-out bearing is picking up sooner. Also make sure the clutch fully engages with the pedal out or you will slip the clutch because the thro-out is always holding the clutch in a bit.
Done, already adjusted it. It has a little more play left to go, but it's pretty well done with adjustability.
Originally Posted by drumfield
Did you clean and put a smear of grease in the splines on the input shaft? If not, the clutch plate could be "hanging", and causing it to seem like the clutch is not releasing completely.
Crap. Never knew to do that. Cleaned, but no grease.....
Originally Posted by larryb346
If your idling too fast it will also cause the trans to grind going into first/reverse.
Fixed. Idle is correct.


Man, I am seriously days away from this thing finally being on the road.......I don't know if I can handle having to remove the engine/trans and starting all over....
 
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Old Dec 26, 2010 | 06:55 PM
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Just a thought, you need to be sure your trans is filled to the correct level and with the correct grease. If your not use to these older trans. they are harder to get into first and reverse than the newer trans. When it has been running in neutral and you try to shift into first, the trans gears are spinning and it is difficult to get them slowed and stopped so you can get it in gear.
If you can shift into second without grinding and then shift into first with no grinding it's not right, but these old rigs have been driven thousands of miles just like that. Usually if you pull up to a stop with the trans in third and if you can shift directly to low with no grinding you can use them just like that for years.
Hope it works out for you since your that close to driving it.
Larry
 
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Old Dec 26, 2010 | 07:57 PM
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^Speaking of that close to driving it, the old man and I just took it around the block for the first time in 20 years. Runs pretty good, even without any tuning.

The trans was filled with 75W-90 Valvoline gear oil, which is specified in the shop manual. However, I haven't checked it since I first filled it months ago and it does have a slow drip for some reason. That'll be the easiest to check.

Next thing to do is to take away a little bit more play so it disengages it "more"....see if that helps.

Thanks all for the input!
 
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Old Dec 26, 2010 | 08:33 PM
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Getting to drive it is sooo cool. Nothing like getting to drive something that has been sitting for years and has been fighting you every step of the way and finally getting the best of the truck.
Great job
Larry
 
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Old Dec 26, 2010 | 08:43 PM
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just wanted to say congrat's!!! and I understand the frustration with the clutch and trans. my 54 has similer problems ..mostly from sitting I have to double clutch into 4th, and slip into 2nd to get into 1st without grinding ..but as I get a few miles on it it is getting better . glad to hear you got to play with her!!! It could be you just have to learn how it want's to be driven..remember she is older the you !!
 
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Old Dec 26, 2010 | 09:12 PM
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^ Yep, it's got a few decades on me.

Hopefully I will get beyond these issues and enjoy it by later this week.
 
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Old Dec 26, 2010 | 10:53 PM
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Might want to read about pilot bushings/bearings.
 
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Old Dec 26, 2010 | 11:18 PM
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Having to touch 2nd or 3rd to stop the gears rotating is pretty normal, unless you want to wait 30 seconds or so for things to slow down.
 
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Old Dec 26, 2010 | 11:43 PM
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Originally Posted by mr4speedford
Might want to read about pilot bushings/bearings.
I wasn't told to install one, so I didn't. I basically put back on what I took off, and I don't remember finding anything that resembled a pilot bearing.... However it does show one in the shop manual...... Are they really necessary?


Albuq--Yeah, I'm becoming to see that more clearly.
 
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Old Dec 27, 2010 | 01:07 AM
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Umm yes without the pilot bearing you will destroy your trans and probably your clutch...that is why your supposed to read the manual first...
 
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