Saturday, October 25, 2014

Onan gets an oxygen sensor

Got a 1 3/8" 16 gage J pipe to make an exhaust pipe with bung for an O2 sensor
Made a new 1/4" thick flange to fit on the exhaust manifold. Made a step bore to fit the larger 1 3/8" pipe.
O2 sensor bung
Ready to tack weld
Welded up.
Gasket made of Chesterton 199 inserted graphite, supposed to be good to 1650F and 2000 psi. This stuff is brittle and I made two gaskets to get a good one.
Dummy sensor to plug the hole. It is fairly well protected from road spray when the generator door is closed.

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