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#639207 04/20/2010 2:52 AM
Joined: Apr 2008
Posts: 44
7
Wrench Fetcher
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Joined: Apr 2008
Posts: 44
Well I was at a local swap meet, and found a Zenith carb in fairly good rebuildable condition for $10. It was cheap enough, so I picked it up in the hopes it would be correct for my '49 GMC 100, w/228. I already have a couple Carters, but would like to be as original as possible.

If anyone could help me ID this carb, and whether or not it's correct for the truck, it would be greatly appreciated.

Numbers on round metal tag:
-Outer: 163285
-Inner: 133409 (the last digit here was difficult to make out)

Other markings beside "Zenith - Made In U.S.A." are as follows:
-LR4-16 adjacent to the float bowl
-173 on the bottom flange

Any help or leads are appreciated. I've heard the folks over at Zenith are very helpful, so I may try e-mailing them tomorrow.

Thanks!

78chev #639338 04/20/2010 4:26 PM
Joined: Jan 2008
Posts: 4,961
C
'Bolter
'Bolter
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I don't find that number in GMC books. Zenith was used in many industrial as well as military applications. Does it have the idle adjustment down low at 45 degrees or up higher horizontal. The horizontal is a 28 series, the 45 degree is a 228 series.

crenwelge #639386 04/20/2010 8:02 PM
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What exactly is the difference between "a 28 series", and "a 228 series"?
Or is that a typo?

I was on oldgmctrucks.com and my carb looks exactly like this:

www.oldgmctrucks.com/photos/AcceleratorControlSchematic.jpg

I will check whether the idle adjustment is horizontal or canted 45 degress, in a couple hours when I'm in the garage, and will post with my update.

78chev #639475 04/21/2010 1:20 AM
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Wrench Fetcher
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Right, so I've been busy rearranging things in the garage all evening, BUT

I took a good look at the carb, the idle adjustment screw is 45 degrees. So, it's a 228 series? Jackpot?

78chev #639496 04/21/2010 2:16 AM
Joined: May 2001
Posts: 7,438
Extreme Gabster
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Joined: May 2001
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According to this web site a 163285 Zenith is for a Hyster fork lift.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.
Cletis #639503 04/21/2010 2:32 AM
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I just searched that page, and there was only one match for 163285, a Hyster forklift, but 163285 was the customer number.

78chev #639673 04/21/2010 8:09 PM
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Wrench Fetcher
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Wait, no. You were right cletis, it's for a forklift.

Well, anyone want to buy a carb? Haha.


Moderated by  Phak1, Woogeroo 

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