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I found a solution to the exhaust pipe hanger puzzle on my 0-360, crossover
type, two tail pipe RV6.  Its a variation of the reccomended set up by the
mfg..  Attach an almost vertical 1/8"x3/4" steel strap leg to the most
convenient oil sump bolt.  Attach this to a rubber strap supplied by a
generic auto exhaust hangar with several #10 bolts to get a solid
attachment.  Cut off the single 1/4" brad that attaches the steel strap with
the rounded part that fits the top of a exhaust pipe and secure with several
(3 or 4) #10s.  Attach the rounded strap to the exhaust with a ss hose
clamp.
Now for the critical part,  attach a 3/8" tube (I used stainless) from the
left to the right lower hanger with a single #10 bolt loose enough to move
easily.  The tube should be fitted last so the holes can be drilled with no
binding of the bolts.  Use high temp lock nuts on the cross tube.
This has worked for the last 500 hours, previous more elegant designs lasted
less than 50 hours.

Steve Colwell     Legacy #32

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.