zsmith3rd(at)earthlink.ne
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 Posted: Wed Jan 25, 2006 9:31 am Post subject: R912 oil filter & breather hose |
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List -
Somebody emailed me off-list asking about safety-wiring the oil filter and also asked if there was an easy way to prevent the oil tank breather hose from making bottom of plane nasty.
My apologies.....in a hasty session of deleting a bunch of stuff, yours got trashed. At this point we insert DO NOT ARCHIVE.
At a Rotax factory school we were shown the easy way to safety the filter: Put an appropriate size hose clamp around the filter right at the base of the filter, nice and snug, don't crush the filter. Then safety the clamp with wire around the clamp bolt head and through the nearby engine case bolt head which already has a hole for the wire. The clamp can be rotated such that the clamp bolt is near the case bolt.....makes for a really short safety wire.
ZAC drawings/assembly manual (mine, at least) call for a hose from the oil tank breather to a point just below the bottom of the firewall (in the airstream).
If you run this hose to a bottle, akin to the water overflow bottle, then the dripping oil ends up in the bottle and not smeared all over the bottom of the fuselage. One caution.....no need for a short hose inside the bottle, and drill a couple of #30 holes in the bottle cap so it too can breathe. Mounting on the firewall is much like the radiator overflow bottle; where it fits best.
My 912 previously lived on a pusher, had the breather bottle setup, and never got spatters on the tail surfaces.
Hope this is helpful, whoever you were,
Zed/701/R912/90% etc
do not archive
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