Next message: Mike Maurice: "Re: TWL: Defective Aluminum Alloy 5083-H321"
When it is off load, out of gear and revving, does the pressure go back up
at all? If so could be the main bearings are worn. have you checked the
oil is reaching the cam shaft ok? If so don't worry so much. What temp is
oil coming out of the cooler? should be noticeably cooler than when it went
in. Oil would have to be pretty hot to drop to 18 psi without some other
problem. Is the oil the right grade, fresh and clean? Lastly it may be
that this engine has an adjustable pressure relief valve, adjust it.
David
> -----Original Message-----
Aldo
> J. Marchioni
> Sent: 01 December 2003 15:40
> From: Aldo J. Marchioni
> To:
> Sent: Monday, December 01, 2003 2:01 AM
> Subject: Faryman diesel low oil pressure
>
>
> A blow boat friend has a Faryman (German)18HP diesel engine in
> his boat, which
> is driving him nuts after 28 years and only 1300 hours.
>
> The engine is a 2 cylinder (V-2) system, Model R30M, raw water cooled.
>
> At cold startup, oil pressure reads 80psi+. As engine warms, it
> drifts down
> to 18 psi after 30 minutes or so at running speed- at which point
> he shuts it
> down for fear of seizing the engine.
>
> Pertinent info is as follows:
> a.. Cylinder top temps remain cool to the touch (90-120
> degrees), but
> the cyl jackets get hot, as does the oil pan (over 220 degrees)
> b.. Oil levels are fine. Same with filters and screens.
> c.. Cooling water flow is fine, and water never gets hot enough
> to open the
> thermostat. The engine runs cool anyway.
> d.. Oil pressure sender, and gauge have been replaced, and are fine
> e.. Oil cooler is clean and unobstructed.
> f.. Engine runs smoothly throughout the process, and there is no exhaust
> smoking, steam, etc.
> g.. Oil seems to be breaking down due to heat.
> My uneducated guess was the oil pump.
>
_______________________________________________
http://lists.samurai.com/mailman/listinfo/trawler-world-list
To Unsubscribe send email to
Include the word "Unsubscribe" (and nothing else) in the subject or body of the message.
