???----Water is forced in by atmospheric pressure !!------Stick a clear plastic hose in the bath tub.------Suck on the hose.----It is atmospheric pressure that brings water up the hose..
It is so simple to pressure test these gearcases..-----So easy to make a pressure test device.----Had an Air Canada pilot here a while ago.-----Was making his own test device.----Nothing to it.
The pump is not self priming.-----Therefor the impeller must be submerged.-----When boat is moving the water is forced up to the impeller and the pump was primed on start up.-----
I cannot think of a 1996 model 40 HP that uses the ECONOMIXER set-up.-----Note---- there is a VRO system.----An ECONOMIXER system.-----And ACCUMIX system.----Used on various models.
Whenever a motor came in for recoil repairs I would ask if the motor was hard to start.-----Answer was usually ---YES.-----Owners get mad and become violent on recoils.
Your manual is for 73 t0 1990 models.-----The motor you are working on is a 1997 according to the model number.???-----Very puzzling what motor ( oil injection ) you actually have there.------Post some pictures I say.
