The issue is voltage to the ignition system while cranking. SMTA tractors need high CCA batteries 800 will do. They also need heavy battery cables because they are long, and the engine is tough to crank, If it is cold out it can draw 550 amps. The cables need to be 00gauge wire which is about 3/8 of an inch of wire diameter, not including insulation. The connections need to be soldered on and shrink tube sealed to assure tight and high amp conductivity. The ground should connect to the starter motor mounting bolt clean and shiny, then painted if needed. Welding cable, or OTR truck material is best for construction. Jim
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Today's Featured Article - Pitfalls of Tractor Engine Rebuilds - by Chris Pratt. The first pop after you have put the machine together with your own hands is exciting and pleasing. The whole experience can be marred if one moves too fast and makes too many assumptions that they can just use "as is" some parts they should be closely scrutinizing and possibly attended to. In such cases, rework makes what could have been a fun project turn into an irritant or even a nightmare. Minor Irritants To give you an example of an minor but irritating proble
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