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A most successful holiday vacation. The canopy plexiglass is now hysolled in
place (builder tips to follow later), and the engine is now hung on the
mount. It hardly looks like the same project! I'm now starting to dog
paddle my way thru the firewall-forward end of the Lancair builder's pool.
I'm laying out the firewall components in their entirety prior to drilling
any holes thru the firewall. I'm trying to get my battery mounted to the
firewall (on the hot side) and it's pretty close to the oil filter. Today's
question is "how much clearance is needed between the oil filter -- which is
attached to the engine and therefore moves in flight -- and firewall mounted
components?"
The battery in question is a B&C Specialties recombinant gas 32 amp-hour
battery. It is the same size as a G-25 battery but has a few more electrons
packed inside. Bill Bainbridge of B&C has "approved" (as it were)
rack-mounting this battery to the engine side of the firewall, though he
suggests a thin metal shield against radiated heat to prolong battery life.
The plan is to pop rivet thin aluminum sheets to the battery rack's sides, or
maybe just use aluminum tape.
The engine in question is an IO-360-B1F, which has an aft-mounted oil filter
situated so that it's spin axis is aligned with the airplane longudinal axis.
(i.e., it screws on the back and the open end points forwards...)
I can mount the battery and have 3/8 - 7/16 inch clearance between the side
of the filter and the battery. I have, on the other side, 1/8 inch clearance
between the battery and the nearest engine mount tube. Side to side motion
of the oil filter is of concern, but vertical motion is not a problem. The
question is simply how much clearance is needed.
There is a fall-back position here. A remote oil filter solves the problem.
I'm just trying to avoid the cost and the weight of the remote system.
Thanks in advance.
- Rob Wolf
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LML website: http://www.olsusa.com/Users/Mkaye/maillist.html
LML Builders' Bookstore: http://www.buildersbooks.com/lancair
Please send your photos and drawings to marvkaye@olsusa.com.
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