Geico266
Well Known Member
It was raining today so I pulled the top cowl to check things over. I decided to tidy up some loose wires, cables, and hoses, and look for chaffing. I noticed the black manifold pressure 1/4" ID hose that runs from the carb equalizing tube to the Dynon MP "signal converter" (mounted on the firewall) was extremely loose on the hose barb fitting. It looks like it has swelled up to a size much larger than .250 ID. The OD is .500 at the end near the carbs and the Dynon end is .435. The hose seems mushy also. I realize the Rotax is metric and the Dynon is English so finding a tube that fits both is tough, but this tube looks like it is swelling up from fuel vapors.
Any air leak will cause the engine to run lean and little rough. I don't recall the plans saying we should put any kind of clamp on it, but a little "double loop safety wire clamp" would certainly help prevent an air leak.
Any air leak will cause the engine to run lean and little rough. I don't recall the plans saying we should put any kind of clamp on it, but a little "double loop safety wire clamp" would certainly help prevent an air leak.
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