I just thought of something. On Cummins engines there is a passage hole that allows intake air to go through the rocker assy., and in the engine top cover. On turbocharged engines that hole MUST be plugged as too much pressure will pressurize the crankcase. I guess you have already checked crankcase pressure?
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Today's Featured Article - Upgrading an Oliver Super 55 Electrical System - by Dennis Hawkins. My old Oliver Super 55 has been just sitting and rusting for several years now. I really hate to see a good tractor being treated that way, but not being able to start it without a 30 minute point filing ritual every time contributed to its demise. If it would just start when I turn the key, then I would use it more often. In addition to a bad case of old age, most of the tractor's original electrical system was simply too unreliable to keep. The main focus of this page is to show how I upgr
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