Bad vendor advice.. this will end badly

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Bad vendor advice.. this will end badly

Postby pfarber » Sun Jan 24, 2010 10:33 am

On e-bay a CCKW vendor is selling a Zenith 28AV10 and claims that it will 'work' on a GMC270 in a CCKW.

Ok, from Zenith Technical Bulletin Z-190-B (Aug, 1950) here is the codes for what the last two digits on the model mean:

28avsize.gif
28avsize.gif (10.44 KiB) Viewed 5115 times


Note that the both the Nominal size and Throttle Bore are both 1/8 inch to small when compared to a 28AV11. While the Flange size is the same, it will 'bolt up' but you are gonna have some issues with power as you have a small bore to get air through.

Also, the 28AV10 is like the 28AV11 in that the air cleaner is held on by a clamp around a flange at the top of the air intake. On a CCKW that flange is 3/4th to an inch high. The 28AV10 has a much smaller flange.. *maybe* 1/2 inch.
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