From: Nigel Hay MILWEB (nigel@milweb.net)
Date: Mon Sep 12 2005 - 23:04:47 PDT
With most thinks on the halftrack running gear, with the right tools and
once you have done it once, its relatively easy, like changing a track. We
made up a bar that lay across the crab assy with a ratchet chain to lift up
the bogies. One thing you should do is always check the bolts ( 6 or 8 on
each wheel from memory) on the bogie wheels as the holes "oval" if they work
loose, which they can do in a couple of hundred miles. Also the big nuts in
the bogie assembly need regular checks as the constant up ands down
"chatter" of the bogie assy makes these vulnerable to loosening.
BTW the 160 engines are susceptible to a "hydraulic" lock in the valve
lifters - we had to sort this on a tour campsite once its not a quick job.
-----Original Message-----
From: Military Vehicles Mailing List [mailto:mil-veh@mil-veh.org]On
Behalf Of Dan Maguire
Sent: 13 September 2005 07:54
To: Military Vehicles Mailing List
Subject: Re: [MV] 160AX Manifold Question
Boy, now I am getting myself into trouble. The worst part is I meant to
say "yanking on one of my crabs," which I think sounds even worse!
What I was referring to was that I was pulling off one of the 4 bogie
clusters on my M3A1. The four clusters of 4 bogies are held down, if
you will, by the crab assembly (an interesting shaped structural piece
between the volute springs and the roller arms). To put an end to the
hand waving, here is a picture of it all...
http://dmaguire.home.mchsi.com/bogies.jpg
My shorthand description came from the fact that the thing that gave me
the most fits was compressing the volute springs. I had thought that
the threads in the crab through the volute were 7/8" when they were, in
reality, 1". Cut the 7/8" allthread, tacked a nut on, and started
threading. It kept pulling loose. With a fiberoptic scope I could see
that my diameter was wrong and I had to cut/tack new compression rods
from 1" allthread. Thankfully, I did not damage the crab while trying
to engage the 7/8" threaded rod.
I did get the roller ass'y off. Quite simple once I got the springs
compressed and that corner of the HT off the ground.
Whew!
Cheers,
Dan
Auburn, IN
m35products wrote:
> "Yanking one of my crabs" must qualify as the most intriguing remark, in a
> sort of poetically obscene way, that we've seen here in a long time. Pray
> divulge what you mean, if you can do so in a "PG-13" context. It defies
any
> mental image clues.
>
> apb
>
>
> ----- Original Message -----
> From: "Dan Maguire" <dmaguire@mchsi.com>
> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> Sent: Tuesday, September 13, 2005 12:16 AM
> Subject: Re: [MV] 160AX Manifold Question
>
>
>
>>Greetings,
>>
>>Despite my borderline insult of the 160AX engine (and typing block
>>instead of head), I got very helpful answers to my question of why the
>>160AX manifolds are interconnected the way they are. They were sent
>>directly so, in summary...
>>
>>- The arrangement was popular with many manufacturers.
>>- Heat tranfer must have outweighed repair difficulty
>> although the jury is still out on why a single gasket.
>>- Many recommended making my own. I have never done it and I
>> appreciated the detailed descriptions of the process.
>>
>>I didn't intend to appear down on the 160AX which is a wonderful engine.
>> When I asked the question, I had just finished yanking one of my crabs
>>in preparation for a bogie wheel change and even my fingers were tired.
>>
>>Thanks again,
>>Dan
>>Auburn, IN
>>
>>
>>
>>
>>
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>
>
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