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  1. I had a thread on this about a year ago, never had much time to work on this, things have been ridiculously busy. 70 to 80 hour weeks and farming besides, doesnt leave me much time for this stuff. Anyhow, 826 sat for 17 years with water in the oil because of a bad oil cooler, not by my hands was this left torn apart. Family friend is a mechanic. We pulled the engine, took it to him and he went through it. Injectors, injection pump, head and block magnafluxed and machines if necessary, crank ground, rod and main bearings matched to ground crank, pistons rings, sleeves all done to this engine. I am sure I am forgetting a few things. When reinstalled on the tractor and running, I never like the oil pressure. The light never comes on, but I added a gauge and actually a second one to verify. At cold start up, usually around 25 to 30 psi, when oil was warm at idle it would be 2 to 3 psi. After adding some washers to the oil bypass spring, I got the pressure up to about 1 psi per 100 rpm. I just wasnt satisfied with that on a new engine, I know it is enough, but barely and on a new engine, I am not satisfied. After thinking about it, I realized that the oil pump was never changed, after sitting that long with water in the oil and around 18k hours, I felt it was worth a try. Installed new oil pump which came with new bypass valve and watched engine oil pressure shoot up to 90 psi on start up, but after warming up, drops of to a little less than old pump. Thinking the old pump was tired and not regretting changing it, but still not satisfied. I trust the mechanic did a good job on what he knew and he is very experienced on diesel engine, just never rebuilt a German international before. He is also 2 hours away and is older and not wanting to travel much anymore. I am wondering what my next step is? I have been told oil pressure can be greatly affected by cam bearings in these engines and they have to be installed and line bored. I am no engine builder and happy to admit it. I just want better oil pressure on this thing so that I dont have to worry about it. I would like to see 15 to 20 psi at idle like our 966. I am happy to answer questions about the rebuild as best I know them. What am missing? TIA Jared
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