thank you for all the info....I did down load the service bulletins. One of
them is to drill a 3/32 hole from inside valve cover to atmosphere to prevent
oil drain back problems. This engine was stored in cheyenne wyoming since
2006...never started. still in shrink wrap. I did have owner video turning
over engine to verify no bore rust. Hope it works out with out tear down.Sent
from my Sprint Samsung Galaxy S10e.
-------- Original message --------From: Kayak <kayak1...@gmail.com> Date:
3/21/21 5:38 PM (GMT-06:00) To: KRnet <krnet@list.krnet.org> Subject: KR>Re:
prop for 2200 jabiru in kr2 As to that engine: I had a Jab 2200 and flew it
across the country in anAVID Mk4 with extended speed wings. At gross weight we
got it up to11,200on a hot day over CA Central Valley... It climbed at
1100fpm sea level.85HP and light as a feather...There are updates to those
engines you may want to check on for sure. Also,mine was cranking slow after
sitting. I got the 3300 starter, no change,bigger battery, no change, heavier
batt cables, no change. It "felt" okhand turning. But due to the flywheel dowel
update and just for maintand because of this "dragging", tore it down. Turns
out the small end ofthe conn rods had surface rust which had taken up the
clearance and weretightening up. Also, there is a strict protocol when these
are not run. Ifthat wasnt followed, tear it down and inspect it if u are
qualified.Also, the long head studs and thru bolts can fail under
certaincircumstances (detonation) and that too can be avoided, so check
that.BTW, there was a raging debate about rolled threads vs cut threads on
thoselong cylinder studs. Jab used cut threads but rolled threads were said
tobe superior in holding power and resisting tensile breakage. I'm not
surewhere that conversation went. This was around 2010.I just googled and found
this thru bolts and studs
update.https://jabiru.net.au/wp-content/uploads/2018/05/JSB031-3_Through_Bolt_Replacement_and_Upgrade.pdfI
think they are neat motors, light, and perform very well but it would payto
find out all these little details. They run like a Singer sewing machine!Seems
like a great choice for the KR!BTW as to props, mine had all the wrong prop
56-44 prince (IIRC) and when Iwent to a Tenn 64x36 (again, IIRC, might have
been 38 pitch), itdramatically improved climb performance with only a slight
increase incruise RPM. Props are weird that way!Also, mine had the older more
conservative carb jetting needle and I burned5+ GPH, but the newer leaner
needle can reduce that by 1 GPH.Hope some of these recollections help! :)On
Sun, Mar 21, 2021 at 9:39 AM Forest Rothwell <frayrothw...@gmail.com>wrote:> I
have a new old stock 2200 jabiru (2006) that is 80 hp coming for my> kr2. I
would like to hear your rcommendations on prop manufacturers,> lengths and
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