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Old 12-29-2019, 03:03 PM   #25
Island Cessna
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Join Date: Feb 2011
Posts: 305
I think the water injection is both to lubricate a cutlass bearing on the inside of the deadwood, and as a bonus cool the packing gland. Is there a chance it was originally fed from a tee on the vented loop between the heat exchanger outlet and the exhaust elbow? That is the more common configuration, taking advantage of the fact that the exhaust takes far less water than the heat exchanger.
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