A gift from the bilge monster

[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.

[Nicholson58]

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

It's a SS pin 25 mm long!

[wayne.b]

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.

===

It's a badly corroded clevis pin, 1 inch long and 1/4 inch in diameter, hard to tell where it came from but I'd hazard a guess that it had been in the bilge a long time.

[Sir Rondo Normal]

If that's a clevis pin, I can see why it fell out of where ever it came from. It has no shoulder, no threads and no visible cotter pin holes.

[Omatako]

I believe it's not a part, more likely a tool.

I use something similar to push the flange off the propshaft (between the end of the propshaft and the transmission output shaft).

Most boats of similar size have similar stuff on them and I can't think of a single component on my boat that resembles that pin. Earlier comment re no shoulders, grooves, threads, or holes supports my belief. Where would such a pin be used as a component?

[Reefmagnet]

Could also be a dowel pin, especially if it's hardened. They're used to align components requiring a fine tolerance and remain a part of the assembly.

[lonesoldier0408]

Of the items listed, the high pressure pump is the only component that may use such a pin. Get any exploded diagram of the pump and compare.


Still surrounded by anchors.

[artisanmach]

it's a dowel pin...

[JPA Cate]

I beg to differ:

I believe it is a key, which has fallen out to a key way. In any event, it will benefit you to show it to a few folks in your area, because, if it is a key, one must wonder where it came from. It is not a clevis pin, no shoulders, no hole for a split pin.

Once you solve the mystery, you may be able to make people laugh about it, but till you really find out what it is, keep seeking.

Ann

[artisanmach]

I still think it's a dowel pin. tapered on one end. my Perkins has several two that align the head to block, two that align the timing cover to the block.

[Sir Rondo Normal]

Having read Anne's comment and looked again at the pic, is it flat on the sides? If so, Anne may be right.

[SSgtPitt]

Originally Posted by Ann T. Cate

I beg to differ:

I believe it is a key, which has fallen out to a key way. In any event, it will benefit you to show it to a few folks in your area, because, if it is a key, one must wonder where it came from. It is not a clevis pin, no shoulders, no hole for a split pin.

Once you solve the mystery, you may be able to make people laugh about it, but till you really find out what it is, keep seeking.

Ann

I agree. It's a key for a shaft pulley to keep the pulley from spinning on the shaft. Take a flashlight and look at all your pulleys on the front of the engine. You should be able to see the installed keys. If you're missing one, better replace it. Must likely it fell out when a pulley was removed and was replaced with a new one. They cost pennies but can be priceless.

[artisanmach]

s shaft key would be square... this is a round pin

[Sir Rondo Normal]

Originally Posted by artisanmach

s shaft key would be square... this is a round pin

That's what I thought too but if you look closely at the pic, it looks like it might be squared on the sides. If so, it would be a key. If not, and it is round then I think you are correct.

[Cadence]

Originally Posted by artisanmach

s shaft key would be square... this is a round pin

I would have to agree that it is a dowel pin. Probably one driven out during repairs.