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10-03-2010, 06:58 PM
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#1
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Guru
City: Atlanta
Vessel Model: Bayliner 4550 Pilothouse
Join Date: Oct 2007
Posts: 1,630
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what on earth is this part?????
The other week I discovered that 2 set screws on the shaft had worked themselves loose and shaft walked back about 1.5 inches. *Laying on the bilge floor I also found this strange part:
It is hard to tell in the picture but it is not solid metal- it is a small spring and it is shaped like a triangle. *It was NOT in there in the bilge prior to a couple of days before as I have been going through it a lot. *I have asked the sole decent diesel mechanic on our lake what it is and he said he had no idea which really is not what I wanted to hear. *
I posted this on boatdiesel but thought someone here might know what it is! *Anyone know what it is?
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10-04-2010, 02:33 AM
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#2
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TF Site Team
City: Ex-Brisbane, (Australia), now Bribie Island, Qld
Vessel Name: Now boatless - sold 6/2018
Vessel Model: Had a Clipper (CHB) 34
Join Date: Jun 2008
Posts: 10,101
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RE: what on earth is this part?????
It looks like some sort of spring retaining clip, but I doubt that something so...well....flimsy, would be involved in the mating of your drive shaft to the engine, so look for something else like maybe an intake filter loose in it's housing. That's me exhausted I'm afraid.
RickB might know?
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10-04-2010, 02:47 AM
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#3
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Senior Member
City: Tin Can Bay, Queensland, Australia
Vessel Model: Cheoy Lee, Trawler
Join Date: Apr 2010
Posts: 171
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RE: what on earth is this part?????
If I didn't know better I would say it is a deformed O ring
Allan
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10-04-2010, 04:02 AM
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#4
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Scraping Paint
City: Fort Lauderdale
Vessel Model: CHB 48 Zodiac YL 4.2
Join Date: Oct 2007
Posts: 3,804
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what on earth is this part?????
It looks like the spring from a lip seal.
Did you have a crankshaft or gearbox seal replaced in the past couple of years?
-- Edited by RickB on Monday 4th of October 2010 05:04:09 AM
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10-04-2010, 04:38 AM
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#5
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Senior Member
City: Tin Can Bay, Queensland, Australia
Vessel Model: Cheoy Lee, Trawler
Join Date: Apr 2010
Posts: 171
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RE: what on earth is this part?????
Ah Yes Rick you could be right at that
Allan
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10-04-2010, 06:22 AM
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#6
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Guru
City: Atlanta
Vessel Model: Bayliner 4550 Pilothouse
Join Date: Oct 2007
Posts: 1,630
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RE: what on earth is this part?????
I agree- it's a flimsy spring so doubt it's tied to the set screws on the shaft but it was odd to find it at the same time of the incident when I know it was not there previously. Rick- the previous owner did seem to replace the aft transmission seal a few years ago. However, the transmission is essentially in a separate section of the bilge from the shaft and the set screws. Or stated a better way, there is a bulkhead just at the junction of the shaft and the transmission so if something fell off the transmission it would tend to want to be on the other side of that bulkhead and not under the loose set screws. And when I say loose...I don't mean just loose, I mean both set screws completely worked themselves out and were laying loose on the bilge floor next to the spring.
It's such an odd shape and such an intentionally made part that I kind of feel like it probably ought to go back where it belongs, if only I can find out where that is!
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10-04-2010, 07:11 AM
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#7
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Scraping Paint
City: Fort Lauderdale
Vessel Model: CHB 48 Zodiac YL 4.2
Join Date: Oct 2007
Posts: 3,804
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RE: what on earth is this part?????
"However, the transmission is essentially in a separate section of the bilge* ..."
Springs have the odd habit of ...*springing. Especially when assaulted with various bits of bent*rod and other odd tools used to remove a seal from an awkward spot.
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10-04-2010, 09:33 AM
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#8
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Guru
City: Diberville Mississippi
Vessel Name: KnotDoneYet
Vessel Model: 1983 42' Present Sundeck
Join Date: Oct 2007
Posts: 2,450
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RE: what on earth is this part?????
What a cool game! Whose turn is next??
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10-04-2010, 02:07 PM
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#9
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Guru
City: San Diego
Vessel Name: Circuit Breaker
Vessel Model: 2021..22' Duffy Cuddy cabin
Join Date: Oct 2007
Posts: 6,691
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what on earth is this part?????
I can't be certain but I'm pretty sure it's the thermo for the wing wam spider on the shaft coupling. I found a similar wire form in the ER of my boat about 8 years ago and that was the explanation the mechanic gave me. I know, it sounds rediculous but that's what I think it is. (I'm almost positive) There's a similar wire form in the BRT on my boat.
-- Edited by SeaHorse II on Monday 4th of October 2010 03:16:19 PM
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10-04-2010, 02:43 PM
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#10
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Guru
City: Atlanta
Vessel Model: Bayliner 4550 Pilothouse
Join Date: Oct 2007
Posts: 1,630
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RE: what on earth is this part?????
Quote:
SeaHorse II wrote:
I can't be certain but I'm pretty sure it's the thermo for the wing wam spider on the shaft coupling. I found a similar wire form in the ER of my boat about 8 years ago and that was the explanation the mechanic gave me. I know, it sounds rediculous but that's what I think it is. (I'm almost positive) There's a similar wire form in the BRT on my boat.
-- Edited by SeaHorse II on Monday 4th of October 2010 03:16:19 PM
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Are you about to send me snipe hunting??? *
*
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