The Stovebolt Site Forums The Parking Lot Big Bolts voltage decision

You oiled the valves did you also oil the cylinders a bit? You mentioned changing negative cable did you also change positive. After you cranked a bit the cables may have heated up or arced, clean and retighten connections. remove starter button on top of starter and clean button contact and contact on top of starter. Was the battery at full charge when you got it? Some times they sit on shelf for quite a while. With the plugs out, no compression, does the engine still fail to turn. 12 volt will turn the engine faster but these trucks will run fine on 6 volt.