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Antique Autos and Trucks

GMC 1928 T20 Truck Restoration


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  #31  
Old 01-30-2019, 01:11:18 AM
GMCtrucker GMCtrucker is offline
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Default Re: GMC 1928 T20 Truck Restoration

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Originally Posted by Oldtech View Post
Yes, adjusting marvel carbs is a bit of black art Basically... set the big knob flush with the end of the lock spring, then adjust the mainjet on the bottom for best high speed operation, then fine tune the big knob for idle. I think the settings change whenever the temp or barometer changes. Are you running a vacuum tank?
Hello Oldtech. Sorry for the late answer. It runs better now thanks to your advise in the carb. Yes we are using the vacuum tank.
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  #32  
Old 01-30-2019, 01:39:15 AM
GMCtrucker GMCtrucker is offline
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Default Re: GMC 1928 T20 TRUCK restoration.

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Originally Posted by Montyfromalberta View Post
heres the pics of my truck..Canadian made.. has been in the family since new..
ive had a good start on it...doors are off, all new glass, just about time to do the body work(just the fenders) im leaving the green the way it is

cheers
Nice photos. The dataplate one have the info I was looking for. Thanks a lot.
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