From: Nigel Hay MILWEB (nigel@milweb.net)
Date: Mon Sep 12 2005 - 23:22:53 PDT
Its also worth checking the volute springs, they do crack with age and use
or lack of use etc. Like blondes, halftracks are high maintenance......
-----Original Message-----
From: Military Vehicles Mailing List [mailto:mil-veh@mil-veh.org]On
Behalf Of Dan Maguire
Sent: 13 September 2005 08:18
To: Military Vehicles Mailing List
Subject: Re: [MV] 160AX Manifold Question
The bar is a great idea. Your comment regarding tightening is certainly
a word from the wise. I was surprised at how easily everything came
apart to the point that I consciously thought about the need to be more
diligent about crawling all over it and tightening periodically. I had
expected those fasteners to require more sweat to break things loose -
not so.
Thanks for the tips!
Best rgards,
Dan
Auburn, IN
Nigel Hay MILWEB wrote:
> 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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>>
>
>
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