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huber grader


 
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orlin
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PostPosted: Fri Jan 04, 2013 6:03 pm    Post subject: huber grader Reply to specific post Reply with quote

looking to buy a huber grader model #f 1967 detroit diesel has the blower drive broke. how hard is it to fix and dollars?
 
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NCWayne
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PostPosted: Fri Jan 04, 2013 8:24 pm    Post subject: Re: huber grader Reply to specific post Reply with quote

If it's nothing more than the drive shaft to the blower broke it's not that hard to repair. All you do is pull the cover plate off the rear housing that's inline with the blower, remove the clip that holds the shaft in, and remove the broken pieces with a good magnet. That said, if the drive shaft is all that's broke then you might be in luck and it'll be a cheap and easy fix. The only problem is that usually when a dirve shaft twists off/breaks it does so for a reason.

The last one I saw that did it because a liner split in two and threw a small chunk into the blower locking it up. The engine was running wide open when it happened so when the blower locked down the engine still had enough momentum to going to twist the shaft off. In that case a complete engine rebuild was needed.

I also have seen them where a blower bearing locks up and the same thing happens with the blower drive shaft being twisted off. In that case the engine itself is OK, but the blower would need to be rebuilt. While not really cheap to have done, it is still alot cheaper than a complete engine rebuild.

My advice would be to get a Detroit mechanic or at least someone that knows something about them to take a look before you make the purchase. I say this because there are quite a few things to look at in regard to the problem you describe, and as the examples I gave show, they can run from REALLY EXPENSIVE, full rebuild, to just an expensive blower rebuild, to the cost of just a shaft, a gasket, and a few minutes to replace them. Good luck and I hope this helps.
 
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jm.
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PostPosted: Sat Jan 05, 2013 6:27 am    Post subject: Re: huber grader Reply to specific post Reply with quote

One thing is right .. Wayne has it the shaft just does not break on it,s own. You will have more damage will just be up to you to find it. Least case messed up blower or bearing , worst case junked engine.
 
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anteek49
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PostPosted: Sat Jan 05, 2013 8:17 am    Post subject: Re: huber grader Reply to specific post Reply with quote

might be just the shaft. Remove the cover and take out both pieces,then remove the air inlet. If the blower rotors turn easily without any new nicks,feel safe in putting a new shaft in and seal it up. Back when, any Detroit that change rpm frequently would break them. Trucks,loaders,graders were guilty.
 
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Fritz Maurer
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PostPosted: Sat Jan 05, 2013 7:31 pm    Post subject: Re: huber grader Reply to specific post Reply with quote

Have you or anyone else opened it up? If it has high hours, it may have simply worn out and stripped the splines. Find out what series it is, call a Detriot dealer and tell him what you think happened. He will know what parts are likely defective and give you their cost. From there you can figure the labor cost. I'd like to see that thing. You don't see a lot of Huber ANYTHING anymore.
 
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Dalet
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PostPosted: Sat Jan 05, 2013 8:49 pm    Post subject: Re: huber grader Reply to specific post Reply with quote

anteek49 wrote:
(quoted from post at 11:17:42 01/05/13) might be just the shaft. Remove the cover and take out both pieces,then remove the air inlet. If the blower rotors turn easily without any new nicks,feel safe in putting a new shaft in and seal it up. Back when, any Detroit that change rpm frequently would break them. Trucks,loaders,graders were guilty.


Back in 1992 I bought my first semi tractor from the local excavator. It didn't run and I backed the brakes off and pulled it home with the help from a friend keeping it in gear and slowing down the truck with the clutch.

It was a daycab 4000 IH Cabover with an 8v-71. I wish I still had that truck. I put a new blower driveshaft in it and it started right up. I used it for about 3 years and was trucking too far away and traded it off on a 9670 with a 400 BC Cummins.

Oh well, that was years ago, I would replace the blower drive shaft and see if it runs. Mine was in 1 piece though, the threads were stripped.
 
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Fritz Maurer
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PostPosted: Sat Jan 05, 2013 9:55 pm    Post subject: Re: huber grader Reply to specific post Reply with quote

You're lucky you didn't blow the disc with that
method
 
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mite-help
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PostPosted: Sun Jan 06, 2013 11:47 am    Post subject: Re: huber grader Reply to specific post Reply with quote

hard to say---like dalet,others, i have replaced a shaft with stripped spline on one end. it was in a dump truck with 8v71. happened while reving engine to dump load. everything seemed ok in blower. idea was to try to move off jobsite--ended up driving 75 miles home. checked again & put back to work---
 
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