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-   -   Carbs. (https://www.rcuniverse.com/forum/engine-conversions-92/10263438-carbs.html)

stgrlee 01-14-2011 01:09 PM

Carbs.
 
I bought a bunch of Walboro and Zima carbs off ebay and some look pretty good. How can I determine the model number or venturi size? Also a few only have one needle adjuster. Are they any good for glow/gas conversion?

w8ye 01-14-2011 01:30 PM

RE: Carbs.
 
You can look the Walbro carbs up here . . . .

http://wem.walbro.com/walbro/family.asp

You are on your own with the Zama's

http://www.zamacarb.com/prod_lookup.cfm


rangerfredbob 01-14-2011 06:58 PM

RE: Carbs.
 
on the single needle carbs, keep them around for spare parts but they aren't worth trying on a conversion engine

Scota4570 01-15-2011 02:20 PM

RE: Carbs.
 
The little number in the barrel of the carb is 64th of an inch. Figure that out in decimals of an inch and convert to metric to get the size in millimeters. I never understood why the just did not put 13.49, 15, 16.6 or whatever, in millimeters in the first place.

For instance, I am holding a WT542, the choke side has a little "34" inside. 34/64= .53 .53 x 2.54 = 1.34 so 13.4 mm.

spaceworm 01-15-2011 05:41 PM

RE: Carbs.
 

ORIGINAL: Scota4570

The little number in the barrel of the carb is 64th of an inch. Figure that out in decimals of an inch and convert to metric to get the size in millimeters. I never understood why the just did not put 13.49, 15, 16.6 or whatever, in millimeters in the first place.

For instance, I am holding a WT542, the choke side has a little ''34'' inside. 34/64= .53 .53 x 2.54 = 1.34 so 13.4 mm.

We were working in the English sytem of measurements until we went to the metric system, or did we? When was the last time you saw road signs with the speed limit in KpH?


Sincerely, Richard


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