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Old 01-14-2020, 12:12 PM
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Default Thiokol Imp Bogey support arm

So I have not torn into this yet, due to a current snowstorm hitting us north of Seattle. Curious if anyone has had a bogey support arm (proper name?) break before?

Suspect that when I dig in, I'll find a fatigue crack (with existing rust, meaning it has been growing over time) where the arm meets the frame proper.

We were making an easy turn, when we heard a sudden "pop". When we looked, the bogey combo was coming out of the tire guides in the track, and had a reverse camber, looked like a lowered swing axle VW Bug. Started making an awful noise, which turns out to be the tire guides hitting the top of the arm as the track goes over it.

My thought is pull the track, bend the bar down, clean up, weld, reinforce, then inspect the others for fatigue, and repeat if necessary. Am I missing anything?

Without looking, I'm assuming the original arm is just welded to the side of the frame rails? Maybe it carries thru to the other side, and broke at the weld, due to the weld itself?

Thanks for any thoughts on this!

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Old 01-14-2020, 01:01 PM
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Default Re: Thiokol Imp Bogey support arm

ive had that happen on a snowtrac the good thing is the material used in the snowtrac is seamless so I could just run a piece of 2 inch down the inside and weld around it.
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Old 01-14-2020, 02:59 PM
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Default Re: Thiokol Imp Bogey support arm

I have seen many reinforced like that. just hammer a square tube inside of the existing one.
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Old 01-14-2020, 11:00 PM
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Default Re: Thiokol Imp Bogey support arm

It might be worth getting ahold of Dan Gates in SLC at Snowcat Services, he has probably fixed these before. If you don't have a manual, he probably has one of those for your Imp also.

Good luck!
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Old 01-14-2020, 11:39 PM
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Default Re: Thiokol Imp Bogey support arm

Here is Dan contact info:

dan@snowcatservice.com
www.snowcatservice.com
801-893-2297
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Old 01-15-2020, 08:32 AM
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Default Re: Thiokol Imp Bogey support arm

I fixed one a bunch of years ago. I canít remember for certain....

However I seem to recall that there was a u channel that the piece of tubing fit into underneath the cat.

I cut the welds removed the tubing and installed a new piece of tubing.

Then I believe the actual support that the u-bolts are connected slides over the piece of tubing and is welded to that.

Again this is all from memory, which seems to get a little more foggy as each year passes me by......


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Old 01-15-2020, 12:53 PM
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Default Re: Thiokol Imp Bogey support arm

Thanks Dave and Thanks Dan!!
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Old 01-16-2020, 12:43 AM
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Default Re: Thiokol Imp Bogey support arm

My great uncle fixed his broken bogie arm by cutting the old one out and replacing it with a 2" x 2" solid steel stock and had no more problems
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Old 01-16-2020, 11:08 AM
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Default Re: Thiokol Imp Bogey support arm

I did that as well. even sleeving the inside as i have a bombardier track setter hanging back there as well.

and to say an imp has a frame is interesting.

its more like a airframe wing
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Old 01-16-2020, 11:57 AM
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Default Re: Thiokol Imp Bogey support arm

Quote:
and to say an imp has a frame is interesting.

its more like a airframe wing
Yeah, when I say "frame", think "picture frame" or "spectacle frame", or maybe even " conspire against", which might be the best description of this thing!
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