I have a 1974 chrysler 55 HP magnapower 1 model 554HA.I had it running tuesday in a tub of water ran great at idle and when motor was engaged. it has been kept in a garage ever since. I went to start it today in a tub of water it didnt want to fire over just crank then back fire then we flipped the spark plug wires it would fire and run for about 15-20 seconds then backfire, sometimes continue running others just kill out. Does anyone know what it could be? The starter and soleniod are both brand new installed tuesday. And what spark plugs should be in? Autolite 4113 were pulled out and was told no one can get them I was told AC Delco plug r45t were the same put them in wouldnt fire put a set of plugs from my old ford that were brand new in and it would still backfire and cut out sometimes continue to run. can anyone help? And the battery is garbage using jump starter to start it through batter cause it wont hold a charge. could that be the problem?
After going back through reading older posts making sure this wasnt asked before.
Plugs get spark
Motor turns over
not sure of gap on plugs or points.
note sure of compression
gas mix is 50:1
After going back through reading older posts making sure this wasnt asked before.
Plugs get spark
Motor turns over
not sure of gap on plugs or points.
note sure of compression
gas mix is 50:1