Quote:
Originally Posted by Pin_Head
Brakes locking up like that is usually due to a misadjusted push rod (too long) that won't let the piston fully return. Drum brakes that require pumping to get a pedal need to be adjusted (thghter). I know that it sounds like you have done that, but maybe you haven't done it properly yet.
A carb cooling fan is not about vapor locking; it prevents the fuel from boiling out after you shut it off. True vapor lock is very unlikely in cruisers which have the fuel pump inlet below the lowest level of the tank, so gravity flow feeds the pump.
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that should be the issue with the brakes. to properly adjust the brakes i usually tighten them till i can't turn the drum and then back the wheel cylinder adjusters down so i can turn the drum again. you can cheat and remove the drum to do so. that way you can see which one of the adjusters needs to be tweaked and how much. just slide the drum on and then off again to adjust visually but you should be able to do it with the drum and wheel/tire on the truck. not a big deal.
the carb cooling fan was also designed to prevent the manifolds from cracking. the phenolic carb spacer is there to insulate the carb from the engine heat and help prevent the fuel in the carb from boiling.