I'm looking for the actual or 'real world' oil pressures for a Farymann K34 diesel circa ~1983.
You may have read my story from last week regarding low oil pressure in my new-to-me Contessa 26 so I'll spare you the long version.
Presently, the oil pressure is around 10psi at idle and 15-18psi when running full bore and hot. The previous owner claims that's "normal". The oil pressure light starts blinking around 18psi and is on solid red around 15psi and the previous owner claims that's because he installed the incorrect oil pressure light. He tells me I, "just don't know the engine and it's fine to run at those pressures."
I've found conflicting information about what the actual pressure is supposed to be; I have a physical manual for an 18W (similar engine) which states 7psi at idle and 22psi when running at full revs. However, this link from Farymann contradicts the manual and states that 1.8bar (14.5psi) is the minimum ( http://tinyurl.com/5tgnu9u
). However, the latter link looks incorrect as it states the K34 is a 5.8hp engine, not the correct 7hp engine that I know it is.
So... for you folks that own them, have owned them or work on them. I would like to know what ACTUAL oil pressure you see at idle as well as what the oil pressure is when you run at full rev's.
I'll be calling Farymann as well as two knowledgeable mechanics tomorrow and will post the results.