OS 91 Surpass question
10-05-2003, 03:44 PM
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OS 91 Surpass question
I do not know what the nipple on the front case is for??? Went to OS site but could not get a manual (outdated motor). Please help TIA Doc
10-05-2003, 03:47 PM
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RE: OS 91 Surpass question
If you are talking about the nipple on the bottom front of the engine it is to drain excess oil out of the crankcase. Just put fuel tubing on it and position it to exit the bottom of the airplane at the back of the cowling.
