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willysmjeeps.com :: View topic - Choke & throttle & fording knobs
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Choke & throttle & fording knobs
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wesk
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PostPosted: Wed Apr 15, 2015 10:05 pm    Post subject: Choke & throttle & fording knobs Reply with quote

I was just asked this question and I will ask it here as well.

Were the knobs originally Plastic or metal?
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

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G740
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PostPosted: Thu Apr 16, 2015 5:09 am    Post subject: Knobs Reply with quote

Fording and throttle T handles were metal. Choke was plastic.
John
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Hawkshadow
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PostPosted: Thu Apr 16, 2015 5:54 am    Post subject: Reply with quote

On that topic, can the old handles be transferred to new cable or are they sealed together?
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Jordan

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4x4M38
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PostPosted: Thu Apr 16, 2015 7:07 am    Post subject: Reply with quote

As I read it, the M38 came with round throttle knobs
but it was common practice to replace them with the t handles.

Is that correct?
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Brian
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skyjeep50
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PostPosted: Thu Apr 16, 2015 8:07 am    Post subject: Reply with quote

On my 51 M38 throttle and fording were metal T handles, choke was plastic knob.
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ChuckW
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PostPosted: Thu Apr 16, 2015 9:06 am    Post subject: Reply with quote

Quote:
As I read it, the M38 came with round throttle knobs


Where did you read that?
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Chuck W.
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4x4M38
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PostPosted: Thu Apr 16, 2015 11:40 am    Post subject: Reply with quote

Hi Chuck,
Probably here:
http://www.willysmjeeps.com/v2/modules.php?name=Forums&file=viewtopic&t=5158&highlight=m38+throttle+cable

Photo in TM9-8012 Pg 276 showing dash with a round knob.

Wes' photo albums - M38 Survey Form Guide - Photo #1 showing round knob.

However, Photo albums - Historic Photos - photo 131 shows unit 2389045 new ready to ship with a round knob.

Someone in the know fire away!
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Brian
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ChuckW
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PostPosted: Thu Apr 16, 2015 12:12 pm    Post subject: Reply with quote

Interesting, had never seen or heard that before.

Quote:
However, Photo albums - Historic Photos - photo 131 shows unit 2389045 new ready to ship with a round knob.


When I enlarge that photo, looks like a T-handle to me.
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Chuck W.
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1964 CJ3B
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4x4M38
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PostPosted: Thu Apr 16, 2015 12:24 pm    Post subject: Reply with quote

It would be interesting to hear from someone familiar with the
Factory Restoration class.

Motor pool my guess is either works.
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Brian
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ChuckW
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PostPosted: Thu Apr 16, 2015 12:29 pm    Post subject: Reply with quote

Quote:
Photo in TM9-8012 Pg 276 showing dash with a round knob.

Wes' photo albums - M38 Survey Form Guide - Photo #1 showing round knob.


No doubt about those two, they look to be round.
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Chuck W.
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1964 CJ3B
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4x4M38
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PostPosted: Thu Apr 16, 2015 3:55 pm    Post subject: Reply with quote

Yes Chuck that was a typo on my part. The ready to ship M38
has to handle.

Wonder if they changed to t handles later in the manufacturing
run as that is a later M38.
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Brian
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wesk
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PostPosted: Thu Apr 16, 2015 9:51 pm    Post subject: Reply with quote

There are many sources showing two round knobs:


Here in the late M38 service manual TM 9-8012


Here in the early service manual TM 9-804 SEP 1950


Here in both the 51 & 55 ORD 9 G-740


Here in the 55 ORD 9 SNL G-740 but these numbers remain the same in the 51 ORD 9, the 53 ORD 7 SNL G-740, & the 56 ORD 8 SNL G-740

The "T" handled throttle control does not appear until the M38A1 ORD 9 SNL G-758 but part numbers for both are entirely different from the M38.
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Wes K
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PostPosted: Fri Apr 17, 2015 7:19 am    Post subject: Reply with quote

Hi Wes,
I was wondering if there was a separate part number for the T handle
or if it was a replacement with the same number if no substitute
was not specified.
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wesk
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PostPosted: Fri Apr 17, 2015 8:24 am    Post subject: Reply with quote

The M38A1 throttle "T" handle is longer so it would probably work as a sub but the Army supply system doesn't sub it to the M38.

However , if you search deep enough the original 7375115 ORD# & 2540-737-5115 FSN evolves to this change in 1963:

Quote:
http://www.nsn-now.com/Indexing/ViewDetail.aspx?QString=2990007375115
National Stock Number:
2990-00-737-5115

Federal Supply Class:
2990

National Item Identification Number:
007375115

Description:
CONTROL ASSEMBLY,PUSH-PULL

Detail:
A control consisting of a wire, wire rope, or a center load rail with ball bearings, within a flexible conduit. One end must have a threaded sleeve for mounting to a wall, bulkhead, or handle, or clevis. It is used to operate or control, either manually or mechanically a mechanical device. It may include such attaching devices as nut(s), washer(s), clevis, bracket(s), and/or the like. For items designed to transmit rotary motion, see SHAFT ASSEMBLY, FLEXIBLE.


Manufacturer Information:
7375115 19207
U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
801683 34623
AM GENERAL, LLC
X7580 72055
CAMDEC CORP
3A1142-1 77910
SPEAREFLEX CORP



Techincal Specification:
EFFECTIVE LENGTH: 23.000 INCHES NOMINAL
CORE DIAMETER: 0.062 INCHES NOMINAL
CORE MATERIAL: STEEL
CORE CONSTRUCTION: SINGLE WIRE
FEATURES PROVIDED: T-HANDLE AND ADAPTER AND FIXED MOUNTING SHOULDER
FLEXIBLE CONDUIT MATERIAL: STEEL
FLEXIBLE CONDUIT OUTSIDE DIAMETER: 0.188 INCHES NOMINAL
TRAVEL DISTANCE: 3.250 INCHES NOMINAL



Note the 2540 FSC was changed in 1963 to 2990.

Is it possible Keith has a factory drawing that might mirror this evolution?
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

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WillysMotors
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PostPosted: Sat Apr 18, 2015 3:38 am    Post subject: Reply with quote

I just returned from the Toledo area after another research trip, si I may be able to dig out info on the cable soon..
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