Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 12-03-2008, 14:55   #1
Registered User

Join Date: Mar 2007
Posts: 9
Ruggerini low oil pressure

We have a 1986 2 cylinder Ruggerini diesel coupled to a Dyna 8 kw generator. Oil pressure safety shut off not wired properly so we fixed. No oil pressure registering on gauge. Replaced gauge with direct feed type still no pressure. Disconnected line that feeds oil pressure switch at block - no squirting! Have removed oil filter and turned over the engine - oil pumps out but not a great volume. Removed and inspected oil by-pass hose and fittings and they are clear. Removed oil filter housing and it is clear. Currently using straight 40 oil as previous owner did. After running engine run finger around under oil filler cap and there is oil but cannot see it running around due to a baffle. Not sure how many hours on unit but previous owner said it was low!? Not sure how long this problem has been there but top end must be getting some oil as it hasn't seized. Any suggestions, source for service manual and parts? Any help would be appreciated.
__________________

__________________
Westie is offline   Reply With Quote
Old 12-03-2008, 15:19   #2
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,573
Images: 240
Try going to: Ruggerini Diesel: Ruggerini Motori
and select 2-Cylinder, then Owner’s Manual.
__________________

__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 16-03-2008, 08:16   #3
Registered User

Join Date: Mar 2007
Posts: 9
Ruggerini

Thanks for the suggestion Gord. Unfortunately only the new models are listed and no apparent access to the older units could be found. I will try e-mailing the company again.
__________________
Westie is offline   Reply With Quote
Old 16-03-2008, 12:39   #4
Senior Cruiser
 
Alan Wheeler's Avatar

Cruisers Forum Supporter

Join Date: Dec 2003
Location: Marlborough Sounds. New Zealand
Boat: Hartley Tahitian 45ft. Leisure Lady
Posts: 8,038
Images: 102
I don't know how the oil pump is driven on one of these. But I suspect the pump or the drive to it. It could be possible the pump has failed, but that is not easy to have happen. I would suspect the drive. This can be a gear driven off the cam or similar and the pin coupling to the shaft of the pump could have shorn and the shaft is turning only slightly. Just enough for oil to pump as you see it, but not enough to lube the engine.
If it were main bearings worn enough to drop oil pressure, you would still see a flow of oil when you do what you are doing to see if you have a flow of oil.
__________________
Wheels

For God so loved the world..........He didn't send a committee.
Alan Wheeler is offline   Reply With Quote
Old 16-03-2008, 15:40   #5
Registered User

Join Date: Jun 2005
Posts: 1,901
My only though is the over pressure relief is stuck open in the oil pump. Where is the unit? can it be pulled and shipped?
__________________
never monday is offline   Reply With Quote
Old 18-03-2008, 08:14   #6
Registered User

Join Date: Mar 2007
Posts: 9
Ruggerini

Thanks for the info. We are in the process of pulling the genset to remove the generator portion and get at the oil pump. I have been able to source an oil pump and it is on it's way from Italy. We want to remove the oil pan and check for "goo" to ensure the pick up is not plugged too. The pump is apparently driven from the cam but I'm not sure how. The service manual has also been ordered and hopefully it will help. Anything else that we should check while it is out?? Engine runs great, starts instantly, does not burn any oil between changes etc.
__________________
Westie is offline   Reply With Quote
Old 18-03-2008, 14:27   #7
Registered User

Join Date: Jun 2005
Posts: 1,901
If it's been run with this low oil situation more than a few min. I'd put rod bearings in it.
__________________

__________________
never monday is offline   Reply With Quote
Reply

Tags
oil

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
Oil Pressure drh1965 Engines and Propulsion Systems 18 07-07-2015 17:03
Why as Low as 10V Alan Wheeler Electrical: Batteries, Generators & Solar 17 17-01-2012 21:58
Oil Pressure on Volvo D1-30 nils Engines and Propulsion Systems 13 27-10-2008 08:13
4.108 Oil Pressure cburger Engines and Propulsion Systems 14 01-02-2008 10:52
What is Normal Oil Pressure for ... Dave-Fethiye Engines and Propulsion Systems 17 06-10-2007 19:59



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 22:09.


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.