Rear wheels spinning in opposite directions!! HELP!!

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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby CharlieB » Sun Jan 06, 2013 8:17 pm

_____________________--

I was loading a 600 Ford tractor on to a trailer using a winch and didn't
think to put it in nuetral. The winch seemed kinda struggling and then I noticed
the rear wheels were turning in opposite directions coming up the ramp.
There is nothing wrong with your transaxle. The differential is designed
to do that, just like jacking up both rear wheels and turning one forward and
the other will turn backwards. The same with automobiles, as I suppose you
know. A rear wheel drive standard transmission auto would do the same
were it not for the weight over the axle.
As raystractors mentioned, shifting to a higher gear would probably take
care of opposite spinning by there being less resistance, or you could add
a few hundred pounds on the rear of the tractor, that would fix it also.


________________________
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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby vwfish » Sun Jan 06, 2013 8:27 pm

Ahhhh........
Thanks so much.
Now I understand fully!
You guys are great!

Now my fear is the ears were already messed up as I was able to loosen that rear bolt with no issue. Ughhhh!!!
Guess I'll grab a light and check it out so I can see if it's the mount or bolt that is hosed.
I like old stuff, but when you buy something that was supposed to have been "gone through" it's a bit disheartening when this stuff happens.
Oh well, it's only money. I can print more in the basement. :)

Thanks again fella's!!
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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby Bob McCarty » Sun Jan 06, 2013 8:38 pm

VWfish, When you remove the fan, if you find the back nut has rounded corners from someone trying to incorrectly loosen it, turn the nut around, so it will fit tightly in the slot on the back of the engine cover.

Bob
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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby vwfish » Sun Jan 06, 2013 9:30 pm

Well that's a relief!
The ears look to be in tact.
Not sure why I was able to spin that nut off, but I'm guessing it's a little rounded AND the mount was painted so that "slot" formed by the ears is likely a little shallow.
I think a little clean out, plus a new nut and that issue will be resolved.
Now I'm hoping my buddy can get that fan assembly apart and repaired.
That SOB was heat welded on! :censored:
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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby Bob McCarty » Sun Jan 06, 2013 9:35 pm

Only about half the thickness of the nut fits into the slot. That why it's possible to get a wrench on it. A better design would have been to make the slot deep enough that the entire nut was in the slot. Then it could never be incorrectly removed.

Bob
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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby danovercash » Sun Jan 06, 2013 9:41 pm

Always pull start in third gear, first and second will try to spin the engine too fast causing the problem you described with the rear wheels turning different directions.
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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby Matt Kirsch » Sun Jan 06, 2013 10:04 pm

The whole wheels-in-opposite-directions is normal for a differential when you hold the input shaft (i.e. the engine/transmission) from moving.

Your engine wasn't turning, traction was iffy, and that's what happens.
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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby vwfish » Mon Jan 07, 2013 7:52 am

That's a relief regarding the wheels....freaked me out a bit.
Thanks for that info everyone!!

BTW - after thinking about it overnight I remembered something about that back nut on the fan shaft. There was a washer with the sides ground flat so it would fit in between the ears and that is why I could take the nut off. I will be sure to leave that out when I put the fan back in. I wonder what other little treasures previous owners have left for me to discover? :roll:

Thanks again everyone!!
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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby ntrenn » Mon Jan 07, 2013 8:48 am

Glad your ears are still intact.
Dollars to donuts that your fan hub is toast. The shaft has a spiral oil groove cut in it that pumps the oil down the shaft and if it's 'welded' they are probably all mushed up.
Your best bet is going to be a new sealed bearing unit to replace the one you have. They are between $75 and $100 depending on which version you need.
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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby vwfish » Mon Jan 07, 2013 9:52 am

ntenn, you're absolutely correct.....completely roached!
I would like to get a sealed bearing unit but don't want to spend that much right now. My wife is not happy I have to repair this after only owning it a week. :roll:
By buddy has already located a good used one for $30 and I think I will go with that. The tractor hasn't been completely restored, so a used one will be fine for now I think. There are a lot of places that need regular oiling as I'm sure you know, so I will just make it a habit to oil the fan as well.
Hopefully nothing else was damaged when the fan locked up.
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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby Matt Kirsch » Mon Jan 07, 2013 1:51 pm

Tractors get "shipping fever." Even if there was nothing wrong with the tractor when you bought it, you will be looking at several minor repairs plus a major repair once you get it home.
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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby mrdibs » Mon Jan 07, 2013 3:28 pm

Scrap iron? Blasphemy! LOL.
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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby vwfish » Mon Jan 07, 2013 6:30 pm

My buddy called and told me I owe him a left nut.
Apparently he froze his off standing in a field removing the used fan assembly for me.
He also tore it down, cleaned it up, replaced the gaskets and painted it. Nice guy, eh? (even if he does like the green machines).
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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby Thackery » Mon Jan 07, 2013 8:01 pm

My loader Cub had the fan shaft assembly worn out and causing a racket when I bought the Cub. I had spotted that something was amiss when I negotiated the the deal. After getting it home I took the fan out with a bunch of wiggling. I had to borrow a 13/16'' wrench from my friend down the road. After taking the assembly apart it was clearly shot, I had our Kentucky friend Ralph mail me a replacement. Nice and smooth after that. They are tough to get in and out with everything else in place.
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Re: Rear wheels spinning in opposite directions!! HELP!!

Postby vwfish » Tue Jan 08, 2013 7:53 pm

It wasn't fun, that's for sure.
We were outside in 30 degree weather with a slight breeze.
We had to take the hood off, loosen the generator and swing it out of the way, remove the air cleaner and unscrew the fan shroud, and then we were able to just lift it high enough to clear the mount and wiggle it out the left side.
It's going to be in the 40s this weekend so we are going to try and put it all back together again before the temps bottom out again.
I'm looking forward to it starting easier and running much smoother. :{_}:
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