Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 08-09-2011, 16:05   #1
Registered User

Join Date: Jul 2009
Location: France
Posts: 86
Main Seal Oil Leak - Why ?

just see the picture

is somebody can explain this ?

thank you
Attached Thumbnails
Click image for larger version

Name:	2011-09-06 12.29.57.jpg
Views:	344
Size:	411.9 KB
ID:	31408  
__________________

__________________
phmadeira is offline   Reply With Quote
Old 08-09-2011, 21:45   #2
Eternal Member
 
Chief Engineer's Avatar

Join Date: Aug 2006
Location: North of Baltimore
Boat: Ericson 27 & 18' Herrmann Catboat
Posts: 3,798
Re: Main Seal Oil Leak - Why ?

It helps if we know what we are looking at
__________________

__________________
Chief Engineer is offline   Reply With Quote
Old 08-09-2011, 22:48   #3
Registered User
 
neilpride's Avatar

Join Date: Jul 2009
Location: in the world
Boat: csy 44 tall rig.
Posts: 3,099
Re: Main Seal Oil Leak - Why ?

A saildrive??? Cranshaft seal??
__________________
neilpride is offline   Reply With Quote
Old 09-09-2011, 08:48   #4
Registered User

Join Date: Jul 2009
Location: France
Posts: 86
Re: Main Seal Oil Leak - Why ?

sorry
this is come from a sail drive sd20 Yanmar
__________________
phmadeira is offline   Reply With Quote
Old 09-09-2011, 08:55   #5
Marine Service Provider

Join Date: Oct 2009
Location: In the U.S.
Boat: FP Tobago 35 [sold]
Posts: 402
Quote:
Originally Posted by phmadeira
just see the picture

is somebody can explain this ?

thank you
Run you finger around the bottom of the bell housing where the SD meets your engine. If one of the seals is leaking there is a small hole at the bottom of the housing to let it leak out. You should feel the oil and be able to tell if is motor or gear oil.

Why you are having the oil come out along the main water diaphragm is a bit odd I have to say. Where I see the oil in your photo is the flange that presses the main diaphragm down against the inside of the boat to keep the water out.

We just changed both the SD and rear engine seal 1 week ago so if you have any questions just ask.
__________________
Mark (It's Irie - Sailing Blog)
The Wirie AP+ and The Wirie pro - Long Range Marine WiFi and 2/3/4G Systems
kiltym is offline   Reply With Quote
Old 09-09-2011, 09:07   #6
Registered User

Join Date: Jul 2009
Location: France
Posts: 86
Re: Main Seal Oil Leak - Why ?

sometime you have old oil sometime clean oil
the engine room was flooded because of a crack in the water hose
the oil in the transmision looks clean

1 i have oil stack under the sail drive, the presion puch the oil back in the boat, in this case the water will fallow !!

2 I have oil bettween the main seal and the secondary seal !!
__________________
phmadeira is offline   Reply With Quote
Old 09-09-2011, 09:14   #7
Marine Service Provider

Join Date: Oct 2009
Location: In the U.S.
Boat: FP Tobago 35 [sold]
Posts: 402
If you have oil between the 2 diaphragms I would remove the sensor which will allow access to the void between the 2 diaphragms and then use a pump to remove the oil. I would clean the sensor and test it before replacing it. Should not be a big deal if there is some oil residue left, but you should make sure the sensor is working correctly since it is now sitting in oil.

If only oil is coming out, it's probably from between the two diaphragms. Remove that oil and see what happens.
__________________
Mark (It's Irie - Sailing Blog)
The Wirie AP+ and The Wirie pro - Long Range Marine WiFi and 2/3/4G Systems
kiltym is offline   Reply With Quote
Old 09-09-2011, 10:16   #8
Registered User

Join Date: Jul 2009
Location: France
Posts: 86
Re: Main Seal Oil Leak - Why ?

i run you finger around the bottom of the bell housing where the SD meets your engine.
there is some leak around the seal.

but sometime a found clean oil , on my diaphragm !!! this i realy do not understand


i have remouved the sensor, no oil found between the two diaphragm, as far i can go with my tiny tube, but the main leak is at the oposite at the sensor !!, i didn't went as far
but for sure a had oil in it there: the sensor was durty by oil (used one)

i have cleaned again, to see if oil leaking again (four time now,once every two day)
i have to clean the sensor now,and check it
__________________

__________________
phmadeira is offline   Reply With Quote
Reply

Tags
oil leak, oil seal

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Yanmar 2gm Oil Leak Troubleshoot . . . Aotearoa Engines and Propulsion Systems 9 20-08-2015 21:12
Oil Leak cwyckham Engines and Propulsion Systems 12 04-04-2012 16:11
Why Two Oil Dipsticks on Perkins 4-108 ? dancamp009 Engines and Propulsion Systems 16 22-08-2011 07:45
Reporting an Oil Slick knottybuoyz Rules of the Road, Regulations & Red Tape 33 15-08-2011 17:01
How Do I Change My Oil ? flatlander Engines and Propulsion Systems 25 12-07-2011 17:05



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 04:36.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.