Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 26-01-2011, 05:22   #16
VVD
Registered User

Join Date: Jun 2010
Location: Sint Maarten / Saint Martin
Boat: Caliber47LRC - MAKAI
Posts: 78
Found the problem

One of the injectors was not working to full capacity and therefore diesel leaked thru the seal and leaked into the oil. The oil level rose but the pressure gauge went down due to the different viscosity of the mix. We replaced the injector and almost got back our full RPM capacity. It will take a bit of time because I fear some glaze has formed. It explained the white smoke,unburned fuel and the low lub reading, mix of diesel into the oil.

Thank you for all your help. We finally found out by untying the fuel to the cylinders and listen to the RPM change. Cylinder 4 gave almost no change in sound while all the others did.
__________________

__________________
VVD is offline   Reply With Quote
Old 26-01-2011, 07:34   #17
Registered User
 
svcambria's Avatar

Join Date: Jun 2010
Location: Mexico (currently)
Boat: Panda 40 - S/V Cambria
Posts: 573
Glad you found the problem.
Took a trip down to Ecuador on a boat with a 4JH3-TE which involved a lot of motoring. Of course the oil gauge or sender quit mid way, so we were especially motivated to figure out the cause. Turns out the gauge is actually an option - one almost everyone takes with the instrument panel - but not the final arbiter on real oil pressure. There is a separate circuit connected to another sensor which trips the alarm if there is actually inadequate pressure - so if you hear the alarm, you have a real problem. If you don't, you just naturally get to worry about it...

Michael
__________________

__________________
svcambria is offline   Reply With Quote
Reply

Tags
yanmar

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
Proper Oil Pressure Reading for a 28hp Volvo Penta HonoluluJon Engines and Propulsion Systems 4 23-10-2009 18:05
Low Oil Pressure Alarm Freerider Engines and Propulsion Systems 8 14-09-2009 05:44
Low Oil Pressure Afriki Engines and Propulsion Systems 2 29-07-2009 10:32
Yanmar 3jh2 low oil pressure SeaKing Engines and Propulsion Systems 5 23-07-2008 19:16
Ruggerini low oil pressure Westie Engines and Propulsion Systems 6 18-03-2008 14:27



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 22:07.


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.