"Richard Malcolm" wrote in message
om...
a month ago I lost foward gera. had some "cone" in the lower end
worked on by my mechanic and all was fine
now I have foward only at a really slow spped. when I give it more gas
it just revs. sometimes it catches foward at this high idle with a
thump. reverse seems to work fine
I think that it is either
1 related to what the mechanic did earlier
2 a cable adjustment issue
3 trannie fluid issue
4 some weird prop issue

any ideas why I would lose foward except at really slow speeds, while
reverse seems fine?

Hey Rich.

Sorry to hear you're having problems - hope you have 'em fixed by the
20th....that's when I'm hoping to bring Delilah out

You should probably post the brand of boat as well as engine & outdrive
makes & models. That will help with responses.

I know next to nothing about how inboard/outboard transmissions work.
But some transmissions (like mine) work by having plates or cones that
spin next to each other. When out of gear the spinning one(s) spin past the
stopped ones - which are connected to the prop shaft - so no movement.
When in gear pressure is applied that pushes the plates together. Then the
one(s) spun by the engine are pushed tight against the one(s) connected
to the prop shaft - and then the prop turnes.

Then if the adjustment is not correct these plates (cones?) may not be
presses hard enough together. They continue to slip past each other
and there is no prop movement. At slow speeds they might hold but
at higher engine RPMs there is more power there and they slip past
each other. ~ Also, the plates involved and adjustments are different
for forward and reverse so that can be why you have one direction but
not the other.

But, as I said, I really don't know how I/Os work....

gary