| Ray;
I had an OMC outdrive which tilted mechanically via a small motor, worm
drive and rack assembly. I don't know if there is any mechanical
similarity but the motor did need rebuilding every so often. It worked
incredibly hard for its size and the marine environment was pretty
abusive to the internals of the motor. ( Coming down is easy, gravity
helps.)
You might want to check the brushes of the motor for starters, but
the place that did my motors, DECO in Hudson, NH will check it out
and always did right by me in rebuilding work.
The design of OMC was also subject to binding if you overtightend
certain parts. Not knowing your mechanics I cant speak to that. What
I would do is loosen up my tilt drive train to 'just short of snug' and
run it. If it ran ok then begin snugging up the sections one at a time
and test looking for the part that caused the binding. If this process
did'nt cause any improvement I tested it by operating the tilt while
manually lifting upward on the drive. If that improved the performance
the motor took a trip to the rebuilder.
One last thought is battery condition...my OMC had a low output
alternator...if the battery is weak and the engine is idling
maybe there just aint enough juice.
Good Luck with it
Tom
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| Hello,
I have a tilt/trim mechanism on a Mercrusier 260. I had problems
with it, and a shop had told me to tap lightly on the top of the
motor with a small hammer. (Not a BFH!!!).
The system I have is a hydraulic system and it uses an impeller setup.
Well, this didn't help and what happened was that I ended up pulling
the hydraulic motor and taking it apart.
What was inside was only one brush, the other one had worn totally
away and was riding on the wire alone!!! This is why I had no
rotation of the motor at all.
The rotor had to be turned where the brushes made contact with it
and I had to get a new cap assembly which held the brushes also.
This was about $35.
I put everything back together and it didn't work because the
impeller fell out of the shaft. I had to take apart the oil resevior
and line up the impeller on the shaft before putting it back together.
Boy was I glad when it worked fine, and I have had no problems ever
since!!!
If this is the setup you have and you want to ask me any more
particular questions, feel free to write directly to me through
VAXmail.
BTW, Ray, did you get a chance to try out some of the ideas with
cleaning up the fiberglass as discussed in note 363??? I haven't
yet, but I will reply to that note when I do.
Good luck,
Al
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