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Gogarty Gogarty is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 37
Default Removing and installing transmission

In article , am
says...


I did a HBW150 one time. It weighed about 17#. A 100 should be even
lighter.


The HBW 100 is 21 pounds.

Problem was access. I could not see a thing getting it out and it
would fit only one way. Unbolting took minutes, getting it into the right
position to get it out took hours. I had to unbolt it from the DIN
backplate to get it out but I figured that out very quickly.


Access is pretty good. Everything is viusible and easily reachable. Trouble is
the tranny is bolted to the bell housing from the back side so the bell
housing and tyranny have to be removed as a unit. Before that can be done the
heat exchnager and all its piping has to be removed. The main problem is shaft
clearance. After unbolting the flanges the shaft will move only about one inch
back. Looks to me like I need four inches clearance so the stuffing box has to
be completely dismantled. Unless I am reading something wrong.


Installing - The bolting up took about 10 minutes. Getting it in and in the
right position took at least an hour. Again it would only fit one way.

PS - drain the fluid before removal. It is a DYI project if you are
paitent. Why did you buy a replacement? Why not get the old one
overhauled?


You haven't heard the noises this thing makes nor burned --- I mean burned --
your hand on it. Difference in cost between a brand new unit and a rebuild is
about $100. I can probably get that $100 back by sending the old one to a
rebuild shop. If not, it becomes part of our modern art display.

"Alec" wrote in message
.. .
How heavy is the transmission, can you lift it in and out?


Twqebnty one pounds and easy to lift.

How big is the transmission, can you get it out without moving the engine?


I woukd think so. As above, the problem seems to be shaft clearance. But I may
be missing something.

In any case, our mechanic is supposed to be back on duty next week. So I have
decided to let the yard do the job after all. You know, guarantees and all
that. They sink the boat. their problem. I sink the boat, big hassle.

Alec


"Gogarty" wrote in message
...
The Hurth HBW100 transmission on our Universal 5432 diesel in our O'Day
37 CC is kaput. I have bought a replacement tranny but I am having a
hard time finding someone to remove the old one and install the new one.
Our marina's mechanic is out sick with a bad back and won't be back
anytime soon and the marina has no one else.

How big a job is this as a DIY project?