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21-06-2016, 20:30
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#31
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Registered User
Join Date: Aug 2011
Location: Queensland, Australia
Boat: Endeavourcat 30
Posts: 238
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Re: A gift from the bilge monster
Quote:
Originally Posted by marathon lady
Like most boats I have a monster living in the bilge that consumes anything that happens to be dropped, to day my monster gave something back can anyone help in identifying where this may have come from. I have a beneteau 430 with a perkins prima 50 motor, recently had work done on the heat-exchanger, high pressure fuel pump and water pump.
Attachment 126657
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It appears to me that it could be the pin out of the water pump impeller. Probably fell out of a previously replaced impeller.
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21-06-2016, 20:35
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#32
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Registered User
Join Date: Aug 2013
Location: Anacortes, WA
Boat: Gulfstar 37 Sloop
Posts: 187
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Re: A gift from the bilge monster
I still say it's a dowel pin...
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21-06-2016, 20:58
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#33
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Formerly: Capt Wraun
Join Date: Sep 2011
Location: Port Louis, Haida Gwaii (The edge of the world)
Boat: Corbin39 CC Cutter Rig
Posts: 443
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Re: A gift from the bilge monster
Quote:
Originally Posted by marathon lady
The pin is round no flat surfaces, it appears to have some green paint (same color as the motor) on one end.
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High probability that it is a dowel from the engine then. Volvo?
__________________
*** If it ain't broke... just wait! ***
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21-06-2016, 21:47
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#34
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Registered User
Join Date: Aug 2013
Location: Anacortes, WA
Boat: Gulfstar 37 Sloop
Posts: 187
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Re: A gift from the bilge monster
it's a Perkins
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21-06-2016, 22:00
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#35
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Registered User
Join Date: Jul 2008
Location: Auckland
Boat: Morgan 44 Centre cockpit
Posts: 49
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Re: A gift from the bilge monster
Quote:
Originally Posted by Sir Rondo Normal
High probability that it is a dowel from the engine then. Volvo?
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Engine dowels are a lot smaller than that pin. And an engine dowel is never made from stainless steel.
And the next round key I see will be the very first one. Where would anybody use a round key? Keys are always square. And even if it were a key, it would have been used in something waaaaay bigger than a water pump impeller or a shaft coupling. Most water pumps on sailboats have shafts smaller than that
The post referring to a mast step retainer had me going . . . . Not anymore
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21-06-2016, 22:31
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#36
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Registered User
Join Date: Aug 2013
Location: Anacortes, WA
Boat: Gulfstar 37 Sloop
Posts: 187
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Re: A gift from the bilge monster
that pin is not stainless steel, my perkins head has two .25 dia. locator pins I know them well.
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21-06-2016, 23:57
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#37
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Registered User
Join Date: Jul 2008
Location: Auckland
Boat: Morgan 44 Centre cockpit
Posts: 49
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Re: A gift from the bilge monster
Quote:
Originally Posted by artisanmach
that pin is not stainless steel, my perkins head has two .25 dia. locator pins I know them well.
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.25 dia sounds reasonable - do you know them well enough to know that they're not an inch long? Because the pin in the OP is. And on rudimentary comparison I reckon the pin shown by the OP is 5/16" dia. not 1/4"
It looks like SS to me, you obviously have an inside track on what the material is that I've missed.
But I'm sure you're right and I'm done competing.
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22-06-2016, 00:13
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#38
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Moderator
Join Date: May 2008
Location: cruising SW Pacific
Boat: Jon Sayer 1-off 46 ft fract rig sloop strip plank in W Red Cedar
Posts: 21,155
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Re: A gift from the bilge monster
Quote:
It looks like SS to me, you obviously have an inside track on what the material is that I've missed.
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Why don't you ask the OP to try the old magnet test? Should end that particular debate.
Jim
__________________
Jim and Ann s/v Insatiable II, lying Port Cygnet Tasmania once again.
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22-06-2016, 08:04
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#39
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Registered User
Join Date: Dec 2008
Location: SC
Boat: None,build the one shown of glass, had many from 6' to 48'.
Posts: 10,208
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Re: A gift from the bilge monster
Quote:
Originally Posted by Jim Cate
Why don't you ask the OP to try the old magnet test? Should end that particular debate.
Jim
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Not quite, 400 series SS is magnetic. Or is it 300, I forget.
Had anyone else noticed it appears to have a slight radius on at least to the right of the pic.. Dowel pins often have that I'm not sure if it intentional or a result of cutting it off from longer stock. Probably on a lathe?
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22-06-2016, 14:25
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#40
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Moderator
Join Date: May 2008
Location: cruising SW Pacific
Boat: Jon Sayer 1-off 46 ft fract rig sloop strip plank in W Red Cedar
Posts: 21,155
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Re: A gift from the bilge monster
Quote:
Originally Posted by Cadence
Not quite, 400 series SS is magnetic. Or is it 300, I forget.
Had anyone else noticed it appears to have a slight radius on at least to the right of the pic.. Dowel pins often have that I'm not sure if it intentional or a result of cutting it off from longer stock. Probably on a lathe?
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Well, yes, the 400 series of s/s (and duplex as well) are indeed magnetic. However, the 400s are not typically used for hardware like dowel pins, but usually for cutlery and other applications where the greater hardness is a virtue.
And you are right... it does look like a dowel pin to me, as several others have said. The presence of paint on one end is consistent with this idea: there are often dowels used as locators in the bell housing to engine flange, and the outer end of those might well get painted with the rest of the engine.
Jim
__________________
Jim and Ann s/v Insatiable II, lying Port Cygnet Tasmania once again.
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22-06-2016, 14:50
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#41
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Moderator
Join Date: Aug 2009
Location: Solent, England
Boat: Moody 31
Posts: 18,423
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Re: A gift from the bilge monster
Stick it on the for sale forum and see what happens
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22-06-2016, 14:51
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#42
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Registered User
Join Date: Dec 2008
Location: SC
Boat: None,build the one shown of glass, had many from 6' to 48'.
Posts: 10,208
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Re: A gift from the bilge monster
Quote:
Originally Posted by Jim Cate
Well, yes, the 400 series of s/s (and duplex as well) are indeed magnetic. However, the 400s are not typically used for hardware like dowel pins, but usually for cutlery and other applications where the greater hardness is a virtue.
And you are right... it does look like a dowel pin to me, as several others have said. The presence of paint on one end is consistent with this idea: there are often dowels used as locators in the bell housing to engine flange, and the outer end of those might well get painted with the rest of the engine.
Jim
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Back to the bilge. God only knows what might be found? The only other place is a slip and the no. of screw drivers that can be found.
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23-06-2016, 18:49
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#43
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Registered User
Join Date: Apr 2015
Location: West Coast FLA
Boat: 1978 Pearson 424 Ketch
Posts: 459
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Re: A gift from the bilge monster
it appears to be round, which would make it a dowel pin. one of that size wouldn't go in to any of the components you stated as being repaired recently. one that size would be for aligning the flywheel and/or housing, reverse gear to said housing or...hhmmm...nothing else on that size engine. the ones for aligning the head or exhaust manifold and other various things are smaller diameter. Has your reverse gear been R&R'd? the pins in a "V" drive are much smaller. Are you the first owner of this boat? no telling how long it's been down there.
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24-06-2016, 09:24
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#44
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Marine Service Provider
Join Date: Jan 2005
Location: Wewahitchka, FL
Boat: Westsail 32 - Pamela
Posts: 319
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Re: A gift from the bilge monster
Working on the fresh water pump or fuel injection pump on the M50 requires the removal of the timing belt. There are 2 "locating" pins for the fuel pump pulley and 2 "timing" pins for the camshaft & flywheel called for in the M50 manual to help with maintaining timing. The pin in the picture is shorter than those sold by Perkins but that pin may have been one of the pins used by the mechanic to take the place of the pins called for by Perkins. The diameter is close but I'm not sure if the length would suffice.
__________________
Bob Stewart
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24-06-2016, 09:46
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#45
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Registered User
Join Date: Dec 2008
Location: SC
Boat: None,build the one shown of glass, had many from 6' to 48'.
Posts: 10,208
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Re: A gift from the bilge monster
It is from nothing. The bilge monster left it just to play with your head.
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