Hello all,
I just pulled the carb from my Slat. I decided to look over Jon Rogers' "Colour & Finish of Parts" section of Jeepdraw, specifically the Carb section. On the Carb row is a link to Claude Pons' Carb ID Chart. Once in there I looked over the differences between the standard 539S and the 539S K1. The only noticeable differences other than the 2 arm throttle shaft lever on the K1 and the standard 3 arm t-shaft lever of the regular 539S (of which I am familiar), are the riveted plugs on the bowl. It is stated that on the K1 the riveted plugs were the "same alloy as [the] carb body" and on the standard 539S the riveted plugs were a "brighter alloy than [the] carb body". I do not have another 539S with which to compare mine, but I do have a later 12-patent carb. I compared the two and the 12-patent has riveted plugs of a brighter alloy than its bowl, while my 539S has riveted plugs of the same alloy as the bowl/carb body. Thus I am curious what other 539S's look like, and if I might be a lucky fellow with an upgraded K1.
Here are my two carbs side-by-side. The 539S is on the right.
I have positioned the other carb on its side, as a reference point for the following pic.
This is a pic of the rivited plugs on the other carb, clearly showing they are shinier than the carb body
This is a reference picture of my 539S carb on its same side with the other carb in the backround.
Here is a closeup of the 539S's rivited plugs. Note how they are the same color as the body of the carb. Is this standard for a regular 539S or indicative of a 539S K1 carb (as listed in Claude Pons' chart)?
And finally, a pic of both riveted plugs side-by-side. The carbs are 180* from one another.
Thanks,
Chris
Can anyone identify this as a K1 Carb?
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Can anyone identify this as a K1 Carb?
Chris Doran (ccdoran@hotmail.com)
GP 9671 (5-01-41)
Slat 103178 (12-12-41)
GPW 75591 (10-42)
Bantam T3-C 25038 (Early 48)
GP 9671 (5-01-41)
Slat 103178 (12-12-41)
GPW 75591 (10-42)
Bantam T3-C 25038 (Early 48)
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Re: Can anyone identify this as a K1 Carb?
I'm no expert, but the non-539S looks to be a CJ carb.
Dan
Dan
Dan Schultz
Retired USA SFC
GP 9275
GPW 14944 M38 MC70324
M38A1 MD20035
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Retired USA SFC
GP 9275
GPW 14944 M38 MC70324
M38A1 MD20035
K-38 Lineman Trailer
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Re: Can anyone identify this as a K1 Carb?
Hi Dan,Schultzd wrote:I'm no expert, but the non-539S looks to be a CJ carb. Dan
Yup, you're absolutely correct. It's a Carter 636S carb for the 2A. I refered to it as the "other carb" to simplify matters.
Thanks,
Chris
Chris Doran (ccdoran@hotmail.com)
GP 9671 (5-01-41)
Slat 103178 (12-12-41)
GPW 75591 (10-42)
Bantam T3-C 25038 (Early 48)
GP 9671 (5-01-41)
Slat 103178 (12-12-41)
GPW 75591 (10-42)
Bantam T3-C 25038 (Early 48)
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Re: Can anyone identify this as a K1 Carb?
Bump. Any ideas? Does anyone have an original 539S carb with the rivets duller than the carb body? Or are they shinier like those found on my 636S?
Thanks,
Chris
Thanks,
Chris
Chris Doran (ccdoran@hotmail.com)
GP 9671 (5-01-41)
Slat 103178 (12-12-41)
GPW 75591 (10-42)
Bantam T3-C 25038 (Early 48)
GP 9671 (5-01-41)
Slat 103178 (12-12-41)
GPW 75591 (10-42)
Bantam T3-C 25038 (Early 48)
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Re: Can anyone identify this as a K1 Carb?
And there is evidence the Army installred the 636 Carburetor on the G-503 Jeeps during the 50's
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Re: Can anyone identify this as a K1 Carb?
In 1951 Willys developed a replacement engine by modifying the CJ3A engine for the MB to use in reconditioned vehicles.
They used either the 596S or the 636S carburetors. Engine numbers started at 1MB10001 stamped into the surface of the block at the water pump.
So an G503 done up as a KW era restoration might very well have a 636 series Carter.
As to the plugs in your carb identifying it as a K1 or not, I have no idea if that is a deciding factor or not.
They used either the 596S or the 636S carburetors. Engine numbers started at 1MB10001 stamped into the surface of the block at the water pump.
So an G503 done up as a KW era restoration might very well have a 636 series Carter.
As to the plugs in your carb identifying it as a K1 or not, I have no idea if that is a deciding factor or not.
Chuck Lutz
GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
Bantam T3-C 1947
GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
Bantam T3-C 1947
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Can anyone identify this as a K1 Carb?
The rivets on your 539s are indeed the early ones as used on the K1 carb too. To make it an actual K1 carb in appearance you need to modify the throttle arm. And of course use the other choke bracket. The rivets/plugs you need to remove to clean the channels when rebuilding the carburator. Mostly the channels are clogged with residue. When done with the proper tools you can reuse the rivets after.
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