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Go Back   SailNet Community > On Board > Gear & Maintenance > Oil Scare - Universal M25
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Thread: Oil Scare - Universal M25 Reply to Thread
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Topic Review (Newest First)
10-10-2014 03:01 PM
TQA
Re: Oil Scare - Universal M25

Good to hear you got it fixed and it was the inexpensive option.
10-09-2014 11:03 PM
eherlihy
Re: Oil Scare - Universal M25

UPDATE: The solution to this puzzle was the SENDER, as TQA pointed out in post 2.
06-05-2012 02:20 PM
Maine Sail
Re: Oil Scare - Universal M25

After you worked for an owner of a LARGE sport fishing boat and HUGE Mega Yacht who has MIRRORS installed under the engines in the engine rooms, and you wear latex gloves when working in there, like a surgery room, everything else seems dirty, including my engine...

I would have been fired if the engines on the boat I worked on in College looked like my engine... We're talking Pebble Beach Concourse clean......
06-05-2012 01:45 PM
Cruisingdad
Re: Oil Scare - Universal M25

Quote:
Originally Posted by Maine Sail View Post
Are you sure the Motorcraft oil was a "C" rated oil not an "S" rated? I know Motorcraft makes one but I know my local Wal*mart does not carry it.

I have one word for diesel oil..... ROTELLA T !!!

Top End Rotella T Exclusively Since New:



And the hours when the pic was taken:
Agree with Maine on the ROtella T. That is all that goes in my engine. But mine hasn't turned red yet. Mine is still silver and grey. Hey Maine, how long before my engine turns red and shiny like yours and not black and greasy like it is now???

Is it just me, or does everyone else here feel inadequate when Maine shows picures of his shiny engine???

Brian
06-05-2012 01:30 PM
Capt Len
Re: Oil Scare - Universal M25

Is the pressure sensor electric and functioning properly?Pressure line to real pressure gauge tells the truth.
06-05-2012 12:19 AM
eherlihy
Re: Oil Scare - Universal M25

Maine - Rotella T it will be for the next oil change - probably next week!

BTW - do you eat off of that engine? You could!
06-05-2012 12:18 AM
eherlihy
Re: Oil Scare - Universal M25

Quote:
Originally Posted by deniseO30 View Post
E, I don't know where I read it but someone had the wrong oil filter and after installing the right type the oil pressure returned. I'm guessing that happened to you.
Thanks D-

I read that post as well... However, IIRC, that poster had consistent low (no) oil pressure with 3 non OEM filters. (S)he then tried a genuine Universal (gold plated) $30 filter, and the pressure magically returned.

My symptom is that the oil pressure dropped as the engine heated up.

The symptom seems to be gone, now that I have changed the oil and Filter (I really like the Bosch filter) but I won't really know until I try motoring for about 2.5 hours.
06-05-2012 12:10 AM
eherlihy
Re: Oil Scare - Universal M25

Quote:
Originally Posted by dabnis View Post
Forgot this, if the crankcase was overfilled perhaps the crank was turning the oil into froth?

Paul T
Good idea, but no. The crankcase oil level was spot on.
06-05-2012 12:08 AM
eherlihy
Re: Oil Scare - Universal M25

Quote:
Originally Posted by JimMcGee View Post
That wasn't the thread but the info is the same. Evidently this problem is not uncommon on Universals.

FWIW the C34 tech wiki at c34.org has a lot of good info on these engines.
Yes, I have the C36, C34 and C30 websites bookmarked on my home computer. I am on a business trip this week in Chicago without my personal laptop. (Will I ever be able to retire, and do what I love, instead of having to do what other people want?)

The Ericson owners group is also a good one. A couple of well known posters from this forum used to hang out there.
06-05-2012 12:03 AM
eherlihy
Re: Oil Scare - Universal M25

Quote:
Originally Posted by sea_hunter View Post
For low rpm check your air intake, the screen or filter may be blocked. You might have a faulty op sender if the alarm didn't go off especially if the temp didn't rise. 10m is fine for the filter, but I'd be looking for something simple first.
That is a great idea, and I shall check the air intake...

However the engine will hit 3K RPM in neutral, but not under load...

I am fairly confident that the oil pressure sender is working as it should.
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