10w40 is not thick enough,you need 15w40 like Shell Rotella or any good diesel oil thats 15w40.Like somebody else said 15w40 was made to replace the old Diesel oil that was used back in the 1960s called series 3 or straight 30 weight.I guess you could try some straight 30 weight diesel oil,but 15w40 does a better job of lubricating your bearings and if you have them worn out 30 weight wont help on that part.It might stay in the seals better a little bit,but 15w40 is better oil for a Diesel.Ask somebody at an International shop about it.If all he did was put rod bearings in and you ran it out of oil then its probably going to need to be rebuilt after you find out where the oil was going when it ran out of oil.If its leaking,nows the time to fix that while you are working on it.Putting rod bearings and 10w40 in a engine thats got bigger clearances now because of lack of oil is not going to do much good maybe.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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