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02 September 2009, 20:46
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#1
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Member
Country: UK - England
Town: Plymouth
Make: Avon SR4,AX500
Length: 4m +
Engine: Yam 50 2 Stroke
Join Date: Jan 2009
Posts: 418
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Water In The Gearbox
Whilst draining the oil in the gearbox to get the skeg repaired i noticed the oil was quite emulsified (yellowish brown) so water is getting in somewhere.
Where is the most likely route of water ingress and is it going to be another wallet basher to repair?
Cheers guys
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02 September 2009, 20:50
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#2
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Member
Country: UK - England
Town: Up Norf
Make: Avon SR4,Tremlett 23
Length: 4m +
Engine: Yam 55, Volvo 200
Join Date: Apr 2007
Posts: 5,217
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Seals on the propshaft if its caught a line or something around the prop in the past?
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02 September 2009, 21:09
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#3
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Member
Country: UK - England
Town: Southport
Boat name: Qudos
Make: 5.4 Searider
Length: 5m +
Engine: Yam 115 V4
MMSI: 235068784
Join Date: Sep 2008
Posts: 3,930
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Could be the washer on the fill screw?
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02 September 2009, 22:28
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#4
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Member
Country: UK - Scotland
Town: Glasgow
Boat name: stramash
Make: Tornado
Length: 5m +
Engine: Etec 90
Join Date: Feb 2006
Posts: 5,090
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Most likely the output shaft seals .. not a massive job, and dont be tooo worried about the contamination as long as decent gear oil was used .. its designed to cope with some water content to a degree .. but sure enough check the plug seals too as JSP said
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02 September 2009, 22:33
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#5
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Member
Country: UK - England
Town: yorkshire
Boat name: little vicky
Make: avon ex RNLI
Length: 3m +
Engine: tohatsu
Join Date: Mar 2008
Posts: 2,310
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could it be where the gear linkage goes into the gearbox
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02 September 2009, 22:45
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#6
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Member
Country: UK - England
Town: Southampton
Boat name: Hissing Sid
Make: Ross Smith Cobra
Length: 6m +
Engine: 200HP Optimax
MMSI: 235038046
Join Date: Jun 2002
Posts: 3,804
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Do you know how long the oil had been in there?
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02 September 2009, 22:47
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#7
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Member
Country: UK - England
Town: Plymouth
Make: Avon SR4,AX500
Length: 4m +
Engine: Yam 50 2 Stroke
Join Date: Jan 2009
Posts: 418
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Quote:
Originally Posted by Jizm
Do you know how long the oil had been in there?
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Not too sure, so i will replace and keep an eye on it.
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02 September 2009, 22:51
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#8
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Member
Country: UK - England
Town: Southampton
Boat name: Hissing Sid
Make: Ross Smith Cobra
Length: 6m +
Engine: 200HP Optimax
MMSI: 235038046
Join Date: Jun 2002
Posts: 3,804
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Quote:
Originally Posted by gibbo500
Not too sure, so i will replace and keep an eye on it.
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That would be my starting point.
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03 September 2009, 12:56
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#9
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Member
Country: UK - Scotland
Town: Ardfern
Boat name: Moon Raker
Make: Humber Destroyer
Length: 5m +
Engine: Honda BF 90 D
MMSI: 235035994
Join Date: May 2006
Posts: 694
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I imagined all sorts of horrors when it happened to me. New filler screw washers cured the problem.
IMO try them first, they're only a few pence.
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03 September 2009, 13:31
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#10
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Member
Country: UK - England
Town: Plymouth
Make: Avon SR4,AX500
Length: 4m +
Engine: Yam 50 2 Stroke
Join Date: Jan 2009
Posts: 418
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Quote:
Originally Posted by alystra
I imagined all sorts of horrors when it happened to me. New filler screw washers cured the problem.
IMO try them first, they're only a few pence.
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Hopefully that is all it is, i have ordered new ones to fit.
Knowing my luck it will be something major
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03 September 2009, 16:25
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#11
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Member
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
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Before you fill it up again, you should have it pressure tested. As I recall, the pressure range is pretty small: just a few psi, but a soapy water shower then should make leaks pretty evident. You could probably rig something up to do it yourself without too much trouble.
Hope it's nothing serious;
jky
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