Return to the home page...

Go Back   Moyer Marine Atomic 4 Community - Home of the Afourians > Discussion Topics > Troubleshooting

Reply
 
Thread Tools Display Modes
  #1   IP: 65.92.121.86
Old 05-20-2014, 07:47 PM
Pyth75 Pyth75 is offline
Member
 
Join Date: May 2014
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
milky oil

Hey Folks,

I am totally new to the forum world so bear with me. my 1975 27' O"Day (new to me) has a few problems:

1- i think the oil in the gearbox looks milky. i will drain it tomorrow and re-fill with good oil and then run it for a few minutes and check the oil again for contamination. i'll do that a few times but my gut tells me the engine has an issue. what is the order of things i should check should i find the new oil becoming muddy?

2- i have a slow drip from the front of the water pump while running. do i need to drop the water out of the block before i pull the pump? and is there a seal on the front end of the pump/shaft?
Reply With Quote
  #2   IP: 161.213.49.150
Old 05-21-2014, 11:44 AM
JOHN COOKSON JOHN COOKSON is offline
Afourian MVP, Professor Emeritus
 
Join Date: Nov 2008
Posts: 3,500
Thanks: 54
Thanked 855 Times in 629 Posts
75

Welcome aboard the forum. We're glad you are here.

To get the ball rolling I'm going to make a few assumptions:
RWC (raw water cooled)
Late model engine
Oberdurfer water pump

After you remove the water pump and pull the impeller and shaft you will see that it has two seals. One seal keeps water from leaking out of the pump. The other seal blocks oil from leaking into the pump and water from leaking into the oil. If both seals are shot water can get into the oil by way of the pump. Getting the water pump squared away would be a good place to start with the water in oil diagnosis.

You do not need to drain the engine before you remove the water pump. Do rembember to close the through hull valve though. (just kidding)

Put up a post if you need help.

TRUE GRIT

PS: Buy yourself a copy of the Moyer Manuel

Last edited by JOHN COOKSON; 05-21-2014 at 11:50 AM.
Reply With Quote
  #3   IP: 199.173.224.32
Old 05-21-2014, 01:45 PM
joe_db's Avatar
joe_db joe_db is offline
Afourian MVP
 
Join Date: May 2009
Posts: 4,474
Thanks: 49
Thanked 1,026 Times in 721 Posts
Also note the "gearbox oil" IS the engine oil
Reply With Quote
  #4   IP: 65.92.121.86
Old 05-25-2014, 11:23 AM
Pyth75 Pyth75 is offline
Member
 
Join Date: May 2014
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Thanks!

Thanks to both replies. i will close the raw water intake valve and pull the water pump. yep, i knew the gearbox oil is the engine oil.

is there a link to the manual from moyer?
Reply With Quote
  #5   IP: 174.58.84.3
Old 05-26-2014, 01:33 AM
romantic comedy's Avatar
romantic comedy romantic comedy is offline
Afourian MVP
 
Join Date: May 2007
Location: florida
Posts: 1,912
Thanks: 13
Thanked 118 Times in 100 Posts
Just look in the online catalog for the manual, and all sorts of info.
Reply With Quote
Reply

Thread Tools
Display Modes

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Milky Oil Scott Abbott Troubleshooting 7 12-23-2013 10:25 PM
Milky oil; process of elimination Hymodyne Cooling System 22 05-30-2013 06:57 AM
Milky exhaust on a cold startup Sailhound Troubleshooting 4 03-24-2013 09:41 PM
Milky Oil manfredhilker Troubleshooting 6 08-18-2008 03:04 PM
Milky exaust discharge sailnut1 Cooling System 0 05-27-2007 11:25 AM


All times are GMT -4. The time now is 08:29 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.


Universal® is a registered trademark of Westerbeke Corporation

Copyright © 2004-2024 Moyer Marine Inc.

All Rights Reserved