Re: farmall A - help?
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Posted by Bob M on May 10, 1998 at 11:47:13:
In Reply to: farmall A - help? posted by michael 'the legend' on May 10, 1998 at 07:22:26:
: I am restoring my 1946 Farmall A. It is up and running, : but it smokes a lot. The compression on each cylinder : is o.k. The smoke is white and smokes at an idle or : full throttle. My neighbor thinks the fuel ratio : may be too rich. If this is the case, how do I turn : it down?? It has a zenith carberutor. : Also, I converted from 6 volt to 12 volt. Everything : works good, except for the ammeter. The alternator : I installed is good. However, the ammeter never shows : a positive charge. It is wired correctly I think. Could : it be charging and just not show on the ammeter? Also, : the main belt that runs the fan is very loose, could : this be the problem. Perhaps the alternator is not : turning constantly (slipping)?? How tight should the : belt be from the crank to the fan?? : Any help or suggestions is greatly appreciated!! Michael - Your A was originally set up with positive ground electrics. With a 12 volt alternator it's now negative ground. Neg ground makes the ammeter read "backward" (charging = deflection to the left of center). To verify whether the alternator is working, stick a voltmeter across the battery terminals with the engine running 1/2 throttle - any reading over 13.5 volts says the alternator is working OK. To correct a reverse-reading ammeter, simply swap the wires at the two ammeter terminals. White exhaust sounds like a coolant leak. A rich carburetor makes black smoke and burning oil is sort of bluish. Hope this helps... Bob
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