Marinette Boat Forum

Aaaarggh! What moron runs a marine engine stone cold like that! Yes, the t-stats will make one hell of a difference (and the oil will stay cleaner as well. Slug and acid form in cold running engines.) The chokes should open when the motor finally comes up to temperature. If not, some other actions a...

I'll volunteer my 'extensive' info file (on 32 sedans with 360s and 1 1/4 shafts).

Jeff

Hold it! You MUST use a resistor to power the ECU (it doesn't like full voltage) or they will eventually fail. I made that mistake and had to replace both of them. The factory ballast resistor has two circuits that the egghead engineers (over engineering engineers) designed to power the ECU. Later E...

You might not want to hear this, but I'd recommend buying a new pump instead of rebuilding your old one. The savings is not that great, and rebuilding is fraught with peril. Think how you'd feel if, after all that $$ and effort, the silly thing shot water out of the seal or some other misbehavior. I...

POs! Sheesh!

Jeff (former PO)

Being (anal) and a former test engineer, I played with the trim constantly as I roared down the river; and I can assure you speed and gas milage CAN be improved a bit by shoving the bow down. That sounds wrong--the tabs are obviously 'dragging'--but it works. It takes patience (and a smooth, uninter...

The trick is to tow it far enough behind the boat so it's 'happy' in the wake. Most people leave the OB up though it might track better with it down. You'll have to experiment.

Jeff

See if you are getting voltage to the ballast resistor (at least 11 or so volts) with the ignition ON and FROM the ballast resistor to the ECU (about 8 or 9 volts). Also, the positive pole on the coil MUST see at least 10 or higher volts WHEN YOU CRANK THE MOTOR. If not enough voltage is there, you ...

Well! The trick is to use a 12 volt, high performance coil that does not require a ballast resistor, WITH a ballast resistor. That keeps the amperage flow down (and, if you accidentally leave the ignition on, saves the coil. Ah-hem!) Summit Racing or Jeggs sells economy high voltage coils that work ...

It's the oil pressure sensor. Look for an early (1980s) era Mopar 'idiot light' switch at NAPA or elsewhere. (Tell the counter dude the switch is for a LIGHT, not a sensor.) And buy two: mine ate at least one a year!

Jeff