Mike:
Along the line(s) of what Rick was saying about oil levels, I'll add
this. My Yanmar 2GMF manual says to put 2 litres of oil in the engine
after an oil and filter change.....the 2 litres will bring the oil level
on the dipstick to the full mark only if I use a Yanmar oil filter,
which is quite small.
I use a NAPA 1064 Gold Seal oil filter which is larger than the Yanmar
is and obviously size and 'volume' of oil it can handle. Therefore, I
need more than 2 litres when I use the NAPA filter to get the dipstick
to read full How much more exactly?......I haven't measured it
exactly.....I just add the extra oil beyond the 2 litres until the
dipstick reads full.....more often than not since I am not exactly
measuring the extra oil beyond the 2 litres, the dipstick reads slightly
above the full mark. After reading all these comments about oil levels
in the marine engines, I don't think I will fret about the oil level a
little above the full mark.
Just something else to think about.
Are you back at the club?
Rob Abbott
AZURA
C&C 32 -84
Halifax, N.S.
On 2015-08-10 9:35 PM, Rick Brass via CnC-List wrote:
I hate to sound like the Grinch, and I just know that I am going to, but…
I don’t know what engine you have (presume it is a Yanmar), and I know
that most of us ignore the proper procedure from time to time, but I
can virtually guarantee that your owner’s manual calls for you to
check the oil level before you start the engine each time. I ignore
proper procedure myself; my typical practice is to not check if I will
be motoring for 15 or 20 minutes but to always check before and after
any periods when I run the engine for an hour or more. And I check the
engine oil and coolant on OPB’s I am delivering and on charters every
morning before the client gets up.
And “the middle of the safe zone” is really a low oil situation. Your
dipstick is most likely in the back end of the oil pan and the engine
is installed at a 10 to 15 degree slant. “Middle of the safe range”
might be as low as a quart of oil. When I fill my Universal with the
required 3 ½ quarts of oil during an oil change, the oil level is
above the top mark on the dipstick by a significant margin. Think of
the marks as: Top – OK, full; Bottom – shut down the engine; and In
Between – add oil.
The possibility of a lower than optimal oil level, combined with the
long run at high RPMs and an older engine would seem to make the
earlier suggestion that the oil was not circulating back to the oil
pan sufficiently to keep the oil pressure above the alarm level a
fairly plausible explanation of the behavior you described. I suspect
the behavior you report for the alarm and light is another
manifestation of the wiring problems typical of Yanmar panels.
You report 40 or so hours of engine use in the last 20 days. If use
has been like this since May, you are due for an oil change about now
anyway (I can’t recall if a Yanmar is every 50 hours or every 100).
I’d change the oil and filter, being sure to fully top off the oil,
and look at the wiring harness to identify the corrosion or loose
connection causing the erratic operation of the alarm. Then see if the
situation reappears in the future
Rick Brass
Washington, NC
Formerly Yanmar and Cummins certified technician and trainer for a
forklift manufacturer
*From:*CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of
*Hoyt, Mike via CnC-List
*Sent:* Monday, August 10, 2015 3:29 PM
*To:* cnc-list@cnc-list.com
*Cc:* Hoyt, Mike <mike.h...@impgroup.com>
*Subject:* Re: Stus-List 3GM30F Oil Pressure warning
Rich
Me too!
I checked the level on the dipstick immediately after stopping
engine. Was middle of “safe” zone. Plan to change oil and filter on
the weekend, remove panel, check wiring and check oil pressure. Boat
had done a motor sail from Halifax to St Peters July 23-24 (25 hours
motor) , St Peters to Dundee July 25 (mostly sail), Dundee to Baddeck
Aug 2 (5.5 hrs mostly motor). Every day last week motor on for 20-30
minutes going to race and 10 coming back. Then the next day 5.5 hrs
Baddeck to Dundee (motor) . I cannot call this a period of little use.
There was another boat named Indigo in Baddeck last week BTW
Mike
Persistence
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