Removing shaft from gear box

Oct 30, 2019
38
Hello,
I'm trying to fix the leaky packing gland on my vega.
Can anyone tell me how the shaft is removed from the
gear box and how the prop is removed from the shaft?
thanks,
Stacey
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Oct 31, 2019
562
If its a regular transmission, then it's easy. Unscrew the
two bolts sticking out from the coupling (no need to
completely unscrew), then put a rag or something under the
shaft (to catch the key), and then yank on the prop (hard
if you haven't removed lately)
To remove the prop from the shaft, remove the front screw-
get a longer one and screw the longer one in where the
(original) screw was. Then hit the longer screw with a
hammer, but again- don't lose the key. (don't remove the
prop from the shaft, always the shaft from the prop). But
why would you want to remove the prop? Are you replacing
the o-rings?(in case you have a combi)
If its a combi, there is much more involved and you need
help!
Wilhelm, V-257
 
Oct 30, 2019
38
Actually I'm not doing it. It's at the boat yard, but
they haven't seen anything like it and are nervous
about taking it apart. The purpose of all this is to
fix the packing gland which won't stop leaking. Do
you recomend a replacement of this whole system?
Thanks,
Stacey
 
Oct 19, 2019
921
Albin Vega 27 Limerick
Hi.
I just fitted a primer bulb (following very helpful advice from members of
this list) and fuel cutoff tap just down stream of tank on my Vega.

One obvious benefit is easy replacement of fine fuel filter as I can close
tap, replace filter with less fuel leakage and - with bulb primer - clear
any resulting airlocks without having to use the finger pump whose
efficiency seems to depend on the position of the flywheel/engine valves?
(according to MD6A manual).

BUT I was wondering - in the same way that we all (?) close seacocks when
boat not in use - do people leave fuel cutoff closed when boat not in use?

Is there any reason not to?

Thanks

John

Vega 1447 Breakaway

John A. Kinsella Ph: +353-61-202148 (Direct)
+353-61-333644 x 2148 (Switch)
Mathematics Dept. e-mail: John.Kinsella@...
University of Limerick FAX: +353-61-334927
IRELAND Web: John Kinsella's Website
 
Jul 24, 2002
149
-Hi John,

I personally leave my fuel cutoff valve open all the time
(unless changing filters). I'm not sure I have a good reason
for this, but that way I never have to worry about air bubbles
developing between cruises. Of course, it helps if you have
absolutely tight connections everywhere!
The comparison with throughhulls is not quite appropriate -
while a steady drip of diesel over time can create quite a nasty mess,
even a complete hose failure certainly will not sink the boat!

- Sebastian (VegaLyra 1060)
 
Oct 2, 2005
465
When I bought the Tern she was already equipped with a Dripless
Shaft Seal (shaftseal.com). I had never seen one before but it works
great, is maintenance free, and the bilge is dry. I don't know if it
works with the Combi and suspect it was installed when the Combi was
removed. Craig
 
Oct 31, 2019
562
Like I mentioned in my former reply, if you have a Combi
then you need to disconnect the shaft AND the sleeve. It's
not that a big job.(I've done it many times, it only takes
an hour or two- if you know what to do).
Since I don't know what engine you have, I can't give any
instruction on how to do it. I can only tell you the shaft
is fastened like any shaft, but the sleeve is held by two
expansion rings.
Wilhelm, V-257
 
Oct 19, 2019
921
Albin Vega 27 Limerick
Hi Sebastian thanks for reply.

If I understand you correctly you seem to say that leaving fuel shut-off
closed between cruises can lead to air-locks (air bubbles).

I'm not sure I understand why..

Can you explain?

Thanks,

John

Vega 1447 Breakaway
John A. Kinsella Ph: +353-61-202148 (Direct)
+353-61-333644 x 2148 (Switch)
Mathematics Dept. e-mail: John.Kinsella@...
University of Limerick FAX: +353-61-334927
IRELAND Web: John Kinsella's Website