Radiator cap chain on a m38A1

krjeep · Member Joined: Jun 20, 2014 Posts: 10

Where does the chain on the radiator cap hook to on the jeep?

wesk · Posted: Wed Nov 12, 2014 9:16 am Post subject:

I do not recall any chains on the M38 radiator caps. Probably added to your cap in the field or your cap is from a different application. There are no chains listed in the supply manuals and if look at the illustrations in your TM 9-8012 there are none. The cap appears in figures 68, 39, 37, 32, & 31.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php

krjeep · Member Joined: Jun 20, 2014 Posts: 10

This is on a M38A1

hillbilly21 · Posted: Wed Nov 12, 2014 5:29 pm Post subject: Re: Radiator cap

wesk · Posted: Wed Nov 12, 2014 11:09 pm Post subject:

I do not recall any chains on the M38A1 radiator caps. Probably added to your cap in the field or your cap is from a different application. There are no chains listed in the supply manuals and if look at the illustrations in your TM 9-8014 there are none. The cap appears in figures 59, 53, 52, 37, & 36 without any chain. Also in TM 9-8015-1 Engine & clutch manual figures 1 & 2 show the cap clearly without any chain.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php

Nic · Posted: Thu Nov 13, 2014 11:46 am Post subject: Re: Radiator cap

wilfreeman · Posted: Thu Nov 13, 2014 6:26 pm Post subject:

The ones with chains are later replacements. I have the same cap on my 'a1 and my deuce. But yes, if you have a chain, hooking it to the overflow tube works great.
_________________
Matt
1953 M38a1
1964 USMC M38a1
'51 USMC M100 trailer, '54 M100 trailer, '90 M101a1 trailer
Http://wilfreeman.wordpress.com (M38a1 build blog)
http://m38a1usmc.wordpress.com (USMC M38a1 rebuild blog)

chrisk · Posted: Fri Nov 14, 2014 4:46 pm Post subject:

There are no chains listed in the Dutch(M38A1(Nekaf)) manuals and if look at the illustrations there are none.
Chris
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2x 1956 M38A1(Nekaf);1954 1/4TON trailer,Polynorm(Dutch);1983 Honda VF750C (Magna)

kilroy583 · Member Joined: Mar 07, 2014 Posts: 22

I have a 1952 M38A1 without chains. Must be a later model.

wesk · Posted: Sat Nov 15, 2014 10:53 am Post subject:

Late or early the documents all show no chains M38/M38A1/M170 radiator caps. Obviously at some point in the field some chains were installed. By which service we don't know. Most likely the result of an MWO or TB requiring the caps to have chains added in the field to all wheeled vehicles since I have not found any M38/M38A1 specific MWO's or TB's on the subject. Bottom line factory class resto gets no chains. Motor pool class is your choice. If you intend to have the vehicle judged be prepared to be asked to provide documents or photographic evidence that they were installed in the field during the period your motor pool resto represents.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php

NEKAF4EVER · Posted: Sat Oct 24, 2015 4:27 pm Post subject:

My 1956 and 1958 Nekafs do both have radiator caps with a small chain connected to the overflow tube. The one from 1958 comes straight from the army and even has a pressure release knob on it.

Harold

keats · Posted: Sat Oct 24, 2015 9:52 pm Post subject:

many dealers have been selling these radiator caps with the chains as replacements. Have seen them since early eighties.

wesk · Posted: Sat Oct 24, 2015 9:58 pm Post subject:

Generic replacements always seemed to have the chains. It is simple sound marketing / engineering technique to ensure each cap meets the widest set of applications.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php


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