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jdemaris
02-03-2006 17:25:43
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Re: opinion of John Deere 450B in reply to firefighter, 02-03-2006 14:53:50
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Just adding a little on top of what the other guy stated. We sold 350s and 450s new, and the 450 series held up much better. The crawlers we sold to loggers and quarriers took an awful beating, and we'd get a lot of 1010s and 350s with cracked side-frames, cracked track frames, transmission cases, steering-clutch housings, blown reversers, etc. Rarely ever saw it happen with a 450. The first 450s were underpowered, but the early 450Bs had bigger engines, and the late 450Bs also had turbos - both were fine on power. Deere Company had a class-action lawsuit against them for every 450 and 2010 series crawler they ever made with the HL-R to correct a problem with it taking off in neutral. So, the one you're looking at should of been fixed. If it was, there will be a neutral gate sawed into the four-speed quadrant for the gear-transmission. One thing you ought to check that would not be immediately apparent is the oil pressure at low engine speed once the engine is good and warmed up - like after it's run for half an hour. Very often 450s get in-frame engine jobs including sleeves, pistons, main and rod bearings, oil pump, but . . . not the balancing shafts or bushings. So, the such engines with worn shafts will hold good oil pressure until the entire engine gets good and hot, and then often it will drop to near zero at low speed. That's one thing you don't see with the three cylinder 350s because they don't have balancers. 3, 5, 6, and 8 cylinder engines don't have the balancing problem that four cylinder engines have.
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