If you followed
the string of posts
recently they gave
general info on
adapting the Renesis
pump to the
eariler 13B
rotarys.........Mark
Steitle was the first
to retrofit it to his
Cosmo 20B/ Lancair
ES..........There
was a lot of
chatter (a lot from
me) concerning how to
do it...........Since
then Mark has provided
a photo
and some general
instructions how he
did
it...............The "Cosy
Girrrls" are currently
in process adding
the Renesis pump to
their 93-95 13BREW
engine................Chrissi
said they would take
photos for our
group when
available.............Basically
you purchase a 2004-08
Renesis front engine
cover which has the
waterpump hsg built
into
it................Next
you bandsaw the
waterpump hsg from the
rest of the cover and
after a bit of
grinding, fileing, etc
you clean up all the
rough sharp edges and
make it presentable
enough
to mount on your
engine.................At
this point it looks
like all but one of
the pump hsg mount
holes has
matching studs on
the Cosmo 20B (Mark
helicoiled that one
and bolted
it)..............The
Cosmo 13B and
93-95 13BREW have
the same mismatch plus
one
other.............As
you face the front of
the engine the
far left hand stud
is too low but both
these engines have a
machined pad just
above this stud that
is not
drilled and
threaded...............The
reason being the stock
Cosmo 20B pump is
slightly larger in
diameter
and these engines
use that pad but it is
not threaded on the
Cosmo 13B and 93-95
13BREW.............
That is the way I
understand the
situation at this
point.......Whatever I
have wrong about this
explanation
I am going to have
to depend on Mark and
the "Cosy Girrls" to
correct me as I have
only done a quick
and dirty fit on
one of my 86-91 13B
front side
housings...........I
am 55 miles from my
hangar and my day
job (caretaker for
mother) did not allow
me extended time to
check all this
out.........I have a
Cosmo 13B
but the front cover
is not removed and I
lacked the time the
day I
did this............That
part was just eyeball
measured.........The
Renesis pump can
probably be adapted to
the 86-91 13B but will
involve some more
work as two studs
do not match and might
compromise pump
integrity and rigidity
for belt tension
loads.
David the
"Mazmart" pump is a
stock pump with their
proprietary impeller
installed on
it...........Photos
of 20B and 13BREW
front hsgs attached...
Please Jump in
here Mark and Chrissi
give us the straight
info and correct
anything I have wrong
!!.........
Kelly Troyer
"DYKE
DELTA JD2"
(Eventually)
"13B ROTARY"_
Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil
Manifold
"TURBONETICS"_TO4E50
Turbo
From:
David Moyer <davidm@remconinc.com>
Sent:
Mon, December 27,
2010 11:45:27 AM
Subject:
[FlyRotary] Re:
Mazmart Renesis
Waterpump
Very nice to get
just want you want
for Christmas. I
got a few myself
for my Cozy.
Wondering if that
will fit my Cosmo
engine. Are the
pumps the same?
Sure looks much
more substantial
and should provide
much better flow.
David Moyer