"Gogarty" wrote in message
...
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.



You may have a shaft zinc that is keeping your shaft from going back more.
I had the same issue. I got a diver to attempt to get my zinc off so I
could move the shaft back more. No luck but I had just enough room.

Yes the DIN plate or bell housing must be unbolted first and then there are
4 bolts holding the transmission to the DIN plate. I believe that there are
6 bolts that hold the plate on.

Yes the heat exchanger, exhaust hose, and a few other peices were removed by
me the weekend before. The heat exchanger needed cleaning anyway.



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.


Sounds like you clutches were/are slipping. For me a new unit was $1100 and
a rebuild was $400. This was a few years ago.



"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.



Best of luck.




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?

On Tue, 19 Sep 2006 10:37:19 -0400, Gogarty
wrote:


Before I
break anything, is there a really. really good loosener upper for
corroded
fasteners?

Wayne B wrote:
Kroil, or more properly, Aero Kroil is widely regarded as being the
best. As far as I know it is sold only on the web but you might be
able to borrow a can from a professional mechanic.

PB Blaster is also pretty good and is widely available at auto parts
stores.

Apply, tap lightly with a hammer, reapply, and let it sit overnight
before using a bit more and tapping again with a hammer.


Just caught up with this thread...

I have to agree with Wayne about Kroil. Having used it on various
applications including aircraft for years, I'd say it's one of the best
I've used.

That said, you may want to be careful what you get it on because it will
dissolve a lot of synthetics (rubber, plastic, etc.)

Another pretty good one is wintergreen oil. I have a can I got surplus
from the Airforce and it not only smells good, it works great.