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Real-World Repairs for Real-World NOX Failures 200

uid 27's pic
posted by  Art Benstein on  Thu Dec 9 07:51 CST 2004
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last visit: Fri Oct 17 20:10 CST 2014
[RELATED]

A couple years ago a fellow list member had one heck of a time making NOx with a B23F - a non-egr vehicle in a warm climate. Though we had tried suggesting several diagnosis steps centered around the tendency for the LH2.0 AMM to degrade in the lean mode, and service bulletin (check valve) inspired Chrysler ignition timing lean-out, the results of various parts changing led to the conclusion the block passages were too full of rust to permit proper cylinder wall cooling - a good reason to dump the motor. Hard to swallow then; supported by Phil's tests now.

I especially liked the repair effected by tightening the exhaust connection. It is hard to picture a leak drawing in fresh air without doing the experiment.
--
Art Benstein near Baltimore Crrrrazy Ray's!






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