Wrathall Mark wrote:

Mark Wrathall wrote:

I visited Brian Trubee in Seattle last week. Had a great time talking
rotaries and sitting in his RV-4. Thanks Brian. It's going to be a beauty!
He took me down to Boeing surplus! Boy now I understand when my wife says
shopping is fun:).

Last night's jet lag (woke up at 2am) got me thinking about some oil system
details that Brian and I touched on.

He is machining an adaptor plate to fit the oil filter mount plate and
connect up hoses to an remote filter. I figure you could use one less hose by
plumbing block-cooler-filter-block, and them just making a blanking plate
for the oil filter mount milled to connect the oil ports.

Checking the schematic, indicates the following consequences:
1. One less external oil line.
2. Oil lines shorter as the filter will likely be located back by the cooler
any way.
3. Easier routing, no need to route two tubes back past the intake/ignition.
4. Filter sees unregulated px instead of regulated.
5. Failure or wear of the regulator could cause system debris.

Point five seems to me to be a very unlikely failure mode. Anyone have
experience or comments on this.

My second thought was concerning maintenance. Those of you putting radiators
under the engine (Brian/Mike/Paul...) have you made any provision for oil
changes? Are you planning on an oil drain valve with hose overboard, or just
accepting a radiator drain and removal each oil change?

Mark Wrathall

I have the same problem in my 182. The oil drain plug is just above the muffler
so I plan on using a hose out of the bottom of the pan with a plug on the end.


Paul Lamar
 
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