O.S. Engines Support Ask Bill Baxter your questions about O.S. Engines.


Old 08-11-2010, 03:39 PM
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Default 120ax

ive got a 120ax installed on a hanger 9 frenzy and i cant get it to run because the tank is higher than the engine, so i purchased a cline regulator ,but i have to drill a pressure tap in the crankcase! so where do i drill and put the tap ive never done this before!!
Old 08-11-2010, 07:31 PM
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Default RE: 120ax

Directly in the middle of the bck cover so it will not hit the crank.
Old 08-12-2010, 08:44 AM
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Default RE: 120ax

You can drill a hole in the rear cover anywhere it's convenient, but the center is probably the best, because of the thicker boss that's there. Just make sure that the tap is flush with the inside of the rear cover so that it does not hit anything, and that no metal shards have gotten inside the engine.

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