I had a local Merc Mechanic rebuild both of my Borg Warner 72-c trannys....put the motors and every thing back together..fired them up today...Starboard works great ...port does NOTHING...FORWARD OR REVERSE...????any suggestions???..I hate to think of pulling the motor again....

If you have nothing and the fluid is not being pumped, he may have set the pump up for reverse rotation by accident. Start the motor up and crack a line loose to see if you have any fluid movement in the hoses. You cant really put the shuttle valve together wrong. Usually when the dont work, its the pump housing is clocked wrong.

Sorry for the bad news if thats it. You will have to pull it out.

John S.

What he said.

I'll try that,,,thanks...Dave

THANKS GUYS...EXACTLY CORRECT !!!!, PULLED THE MOTOR FRONT COVER WAS 180 degrees off... now I know what you ment by "CLOCKED'' wrong...thanks...Dave

This same exact thing happened to me last season, but with both sides. Had to pull them both...I was not happy.

Glad to hear that was it! Hopefully it wasnt to much trouble.

John S.

I installed trans pressure gauges & senders...but I can't get them to work..I ran 14 gauge wires to the gauges...I have a good ground..I turn the ignition on and the needles move up 3/16''..I installed the senders in the 1/8 pipe plug next to where the old temp sender was 3/8 pipe...I noticed another 1/8 plug on the front cover..I was told thats "reverse" pressure... ??gauges and senders are Livorsi...

Dave,
Sorry, i dont have any advice but, keep us posted. I am looking to do the same here.
Jr.

The 3/8 plug is the line pressure.