Posted by jdemaris on February 16, 2009 at 06:38:33 from (72.171.0.141):
In Reply to: O/T Turbo Chargers posted by John B. on February 15, 2009 at 18:28:09:
At the last John Deere dealer I worked at, we had several new turbo Deeres get delivered with bad turbos and Deere Co. said it was caused by the trucking with the stacks facing the wind.
Can't say I did a controlled scientific experiment on it, but that's what Deere Co. came up with. We always covered vertical stacks when trucking.
As far as what you say with it not being possible? You lost me with your reasoning. Take a turbo four cylinder engine. One common exhaust outlet attached to all four cylinders. Some can have both intake and exhaust valves open a bit. Might even be some exhaust or intake connection leaks somewhere. With the turbo bearings dry with no oil pressure or lube, and the tractor on a cross-country trip? They are just sleeve bearings with a steel ring seal and not tolerant to any dry running. I don't find it hard to believe even a slow turning turbo running dry for several days of high-speed driving might get damaged. I know for sure we took delivery of some bad ones and the trucking contractor had to pay for it.
I kind of wonder why it's even worth worrying about? Doesn't take much to cover the exhaust and play it safe.
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