The Stovebolt Site Forums The Parking Lot Big Bolts 1949 4100 Where to start???

Hi

I would ad, it might be an idea to crack the oil drain plug just enough to see if any water comes out, you usually do not need to pull the plug all the way out.

6 volt systems are more touchy than 12 volt when it comes to the battery cable ends being clean and free of rust and corrosion.

Then with the spark-plugs out for cleaning and no water in the oil. And with a new battery and cleaned battery terminals, I'd hit the starter for about 10 seconds. Then verify that it spins over freely with no knocking noise. You could then hit the starter again to see if you get any oil pressure on the Oil pressure gauge. But no more than about 7 to 10 seconds each time waiting about 30 seconds between each time.

Good luck and happy trucking