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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
Show Parts for Model:

Re: 1855 sudden oil psi drop

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Author  [Modern View]
Banditfarmer

05-19-2013 19:50:05
174.103.154.185



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As stated it could have a bad O ring causing the coolant leak. As for the drop in oil pressure the 1855 was never ment to have 15W40 run in it, It just thins down to much. The older diesels run on strait 30W diesel oil. I tried what everybody told me to run in my 1550 diesel, 15W40 Rotella. Well it started allright then after 15 min or so it lost oil pressure and I shut it down and drained the oil, It was thin as water. I went back to my old oil strait 30W and new filter and we were good to go with good oil pressure after an hour of hard workin, Lesson learned. The oil you are getting now like the 15w40 is made for a new diesel engine not one built in the 70s. If the 1855 has a lot of hours on it, Its loose and thin oil is the last thing you want in it to hold oil pressure. I know this may be a pain to try but its worthy a try to find a good strait 30W or 40W to try. I hope this helps. Bandit

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