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With all due respect, gentlemen: The 310 is an outstanding motor when rebuilt properly. From the factory, there were a number of faults, all of which have been corrected today through updated parts and proper rebuild procedures. Cranks were not properly balanced from factory and motors shook themselves apart. Some also had incorrect spec. of rod bolt installed and failed very soon. The shaking made a bad problem worse with the wrist pin bushings; a two-piece split bushing was used. Oil capacity was not sufficient on 1855 to maintain oil's quality at high temps. This is why 1855 diesel 310 was worst of any. The 1955s had oil coolers and 1855s made in 1974 and later also had oil coolers. 1755s never did but ran at lower hp. To properly rebuild a 310: have crank balanced. You will need to take in rods, pistons, flywheel, balancer, pulley, and pressure plate. Install updated pin bushings (one piece) and updated rod bolts, both available through AGCO, and ensure that sleeve projection above counterbore in block is correct (.002-.004). Should tend toward the lower value of .002. Shims are available to bring value to within this range if your sleeve counterbore has settled some. Also, go a little tighter on head bolt torques. Add 15-20 ftlbs for proper head gasket crush and retention. Do this, and your 310 will give good reliable service for many thouand hours. The 283 is a good engine too, again, with all due respect. 1655s and WFE 2-70s are out there with 7-8000 hours on 283 diesels without overhauls. And they sure are peppy and good on fuel. Hope this helps, Todd. Waukesha engines are great, but the 310 was one engine that tarnished the reputation somewhat because of the problems listed above. But several are today in service after being rebuilt properly and they are nice.
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