Stanley Barthfarkle wrote:

Your locking pawl is not engaging properly, either because it's out of
adjustment, or because you don't have the motor fully "down" before engaging
reverse. The locking pawl locks into place when the motor is tilted all the
way down, allowing reverse with no kick back.

NO... this unit does not latch in reverse. It is all hydraulic. The
tilt pin only limits the downward travel if it is installed or retained
at all. The latching mechanism, present on the outboard, is disabled
when the power trim & tilt unit is installed - all the parts are there
and intact, it is just blocked from being used, into the "Release"
position, with the trim brackets installed.

My guess would be that the pressure relief valve screw has been backed
out, or the needle/seat is worn and letting oil through. This is the
screw on the pump body that you would use to raise the engine if you
lose the pump motor or electric power and need to rasie the engine for
trailering or beaching.

Check this out first...

Rob



wrote in message
news
Up/Down work fine. The trim holds when motor is in up position for
long periods of time.

When down and going into reverse the motor pulls up. Light reverse is
fine. Its when your throttling up in reverse a bit that the motor pops
up.

I looked for any kind of Run/Tilt lever at the back of the boat. But I
think that is for manual tilts. This is all power trim. I suspect I
could have a loose line? Air in it? Weak Cylinder? If you do have to
bleed these things off how do you do that? (Is it like a brake
system?)


Motor is a 1973 Johnson 115 v4

Heres a photo if it helps jog a memory:
http://4.7.36.200/73johnson.jpg

Thanks
Nate