|
|
23-10-2021, 17:36
|
#1
|
Registered User
Join Date: Sep 2015
Posts: 28
|
What is this?
What is it and where did it come from? I found this bolt underneath my Yanmar model 3GM30F diesel engine. Cannot find a missing hole to put back into.
Thoughts?
|
|
|
23-10-2021, 17:45
|
#2
|
Registered User
Join Date: Oct 2009
Location: Canada
Boat: Shopping...
Posts: 309
|
Re: What is this?
Maybe a sacrificial anode? Could be a spare. Look at the exchanger, you may see a similar one.
__________________
Sur le même bateau, l'homme de terre et l'homme de mer ont deux buts différents. Le but du premier est d'arriver, le but du deuxième est de repartir.
La terre nous tire vers le passé, la mer les pousse vers le futur.- Albert Londres, 1927
|
|
|
23-10-2021, 18:13
|
#3
|
Registered User
Join Date: Sep 2015
Posts: 28
|
Re: What is this?
Oddly it just showed up out of the blue on the diaper underneath the engine. So maybe it had been resting on something before. But also I cleaned it up to see the metal type and it appears to me that is brass. Can a sacrificial anode be brass?
|
|
|
23-10-2021, 18:14
|
#4
|
Registered User
Join Date: Jun 2010
Location: St. Petersburg, Florida
Boat: Gemini 3200
Posts: 982
|
Re: What is this?
Oil pan drain plug? Is the tip magnetic? That's common with oil pan drain plugs to attract any metal particles that may be swimming around in the oil.
|
|
|
23-10-2021, 18:42
|
#5
|
Registered User
Join Date: Sep 2015
Posts: 28
|
Re: What is this?
I checked and has no magnetism. It appears to be brass.
|
|
|
23-10-2021, 19:16
|
#6
|
Moderator Emeritus
Join Date: Aug 2005
Location: Carlsbad, CA
Boat: 1976 Sabre 28-2
Posts: 7,505
|
Re: What is this?
3GM30F engines have no cooling system anodes. The tip seems to be designed to seal like used on a bleed screw. Trying to remember what the bleed screw on the lift pump looks like but the memory escapes.
__________________
Peter O.
'Ae'a, Pearson 35
'Ms American Pie', Sabre 28 Mark II
|
|
|
23-10-2021, 19:22
|
#7
|
Registered User
Join Date: Nov 2014
Posts: 1,613
|
Re: What is this?
Looks like some sort of detent pin or locator pin......maybe from the transmission shift mechanism or the governor?
Cooling system drain plug....?
|
|
|
23-10-2021, 19:24
|
#8
|
Registered User
Join Date: Dec 2008
Location: Noank, Ct. USA
Boat: Cape Dory 31
Posts: 3,169
|
Re: What is this?
Do you have the owners maintenance manual? Bet it’s in one of the schematic diagrams.
|
|
|
23-10-2021, 19:36
|
#9
|
Registered User
Join Date: Sep 2015
Posts: 28
|
Re: What is this?
I have an operations manual but don't see any fine detail schematics.
|
|
|
23-10-2021, 19:38
|
#10
|
Registered User
Join Date: Sep 2015
Posts: 28
|
Re: What is this?
It wasn't located near the transmission, but I'll double check.
|
|
|
23-10-2021, 19:40
|
#11
|
Registered User
Join Date: Sep 2015
Posts: 28
|
Re: What is this?
The tip is perfectly flat and does have an indent line down the taper. So it does seem like it is used to seal something off.
|
|
|
23-10-2021, 20:08
|
#12
|
Registered User
Join Date: Dec 2008
Location: Noank, Ct. USA
Boat: Cape Dory 31
Posts: 3,169
|
Re: What is this?
Quote:
Originally Posted by Tigue
I have an operations manual but don't see any fine detail schematics.
|
https://www.jeanneau-owners.com/Manu...e%20Manual.pdf
This is the service manual.
|
|
|
23-10-2021, 22:39
|
#13
|
Registered User
Join Date: Nov 2013
Location: Slidell, La.
Boat: Morgan Classic 33
Posts: 2,845
|
Re: What is this?
Quote:
Originally Posted by DougR
Looks like some sort of detent pin or locator pin......maybe from the transmission shift mechanism or the governor?
Cooling system drain plug....?
|
Yep, it's a bleed screw/drain plug for the cooling system...
|
|
|
23-10-2021, 22:46
|
#14
|
Registered User
Join Date: Jan 2015
Location: Pittwater NSW Aust.
Boat: Jarkan King 40 12m
Posts: 328
|
Re: What is this?
Do you have a heat exchange hot water system?
|
|
|
24-10-2021, 06:29
|
#15
|
Registered User
Join Date: Nov 2014
Posts: 1,613
|
Re: What is this?
Quote:
Originally Posted by jimbunyard
Yep, it's a bleed screw/drain plug for the cooling system...
|
On second thought, if it’s a cooling system drain, why isn’t there coolant all over the place?
|
|
|
|
|
Thread Tools |
Search this Thread |
|
|
Display Modes |
Rate This Thread |
Linear Mode
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
Advertise Here
Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
Vendor Spotlight |
|
|
|
|
All times are GMT -7. The time now is 15:58.