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1. 11:42 PM - Re: Kitfox-List Digest: 2 Msgs - 09/08/15 (michael paton)
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Subject: | Re: Kitfox-List Digest: 2 Msgs - 09/08/15 |
Hi, I looking for the answer on this hassle as I have exactly the same prob
lem, I had a Kitfox 5, with the 100 hp rotax moter, when cool it starts eas
ily, but when hot runs fine but cant restart if I turn it off !!!!I Zambia
,Africa based, Michael Paton
On Wednesday, September 9, 2015 9:03 AM, Kitfox-List Digest Server <ki
tfox-list@matronics.com> wrote:
*
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Today's complete Kitfox-List Digest can also be found in either of the
two Web Links listed below.=C2- The .html file includes the Digest format
ted
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and Message Navigation.=C2- The .txt file includes the plain ASCII versio
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HTML Version:
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Messages Posted Tue 09/08/15: 2
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Today's Message Index:
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=C2- =C2- 1. 07:07 AM - Hard starting 582 using 100LL=C2- (Harold McC
onnell)
=C2- =C2- 2. 09:53 AM - Re: Hard starting 582 using 100LL=C2- (Guy Bu
chanan)
________________________________=C2- Message 1=C2- ____________________
_________________
Time: 07:07:55 AM PST US
From: Harold McConnell <kf30hm@yahoo.com>
Subject: Kitfox-List: Hard starting 582 using 100LL
I am flying a Kitfox 3 with a Rotax 582 engine.=C2- The plane has 1012 h
ours on it and this engine has about 500 hours on it.=C2- I began a proje
ct to fly to all of the airports in North Dakota and have been to about hal
f of them so far.=C2- My problem is, none of the airports stock 87 octane
no alcahol=C2- fuel and that is what=C2-I use 99% of the time and have
great results. The warm engine starts instantly when using 87 octane fuel.
=C2- When I started my tour, I filled up with 100LL and=C2- the engine
runs great but after flying between airports and stopping the engine, it re
fuses to start.=C2- I have tried everything I can think of to remedy the
problem to no avail.=C2- I thought it might be a vapor lock problem so I
shielded the gascolator and the fuel lines all have fire sleeve on them, no
change.=C2- I put a new kit in the fuel pump and replaced the pulse line
, no change.=C2- I have tried using the choke and primer but when it is h
ot, it will not start.=C2- I have changed plugs, still no luck.=C2- I d
o notice that the plugs are dry when I pull them out after trying to start
and are a bit white due to the 100LL I guess.=C2- They check ok.=C2- I
am using the BR8ES resistor plugs with resistor caps.=C2- I have found th
at if I pull a plug from each cylinder and put a few drops of gas in each c
ylinder and reassemble the engine and cowling, the engine will start, usual
ly.=C2- I have tried a lot of things to try to correct this problem and s
o far have not been able to fix it.=C2- Any ideas out there?=C2-
Harold McConnellKitfox 3 with 582 oil injected1012 hours airframe 500 engin
e.NE North Dakota
________________________________=C2- Message 2=C2- ____________________
_________________
Time: 09:53:09 AM PST US
Subject: Re: Kitfox-List: Hard starting 582 using 100LL
From: Guy Buchanan <gebuchanan@cox.net>
Tough one. I ran a 582 grey head for 500 hours running nothing but 100LL
with no problems whatsoever. I did use Decalin reliably so that may have
helped. The fact that it starts after a manual prime indicates no fuel,
rather than flooding, but it looks like you've covered all the bases
there. Since it doesn't appear to be electrical the only thing I can
suggest is to get systematic about following the fuel flow:
1. Test flow rate before fuel pump.
2. Test flow rate at the carb by turning over the engine.
3. Carefully check carb bowls and bowl vents.
4. Check for carb air leaks, particularly in the sockets. (White plugs
=C2- =C2- indicate lean running.)
5. Check compression.
6. Check for crankcase leaks. (Maybe seals dried out.)
7. Check for exhaust blockage.
Obviously I don't think your problem is 100ll related. I'm guessing it's
either tangentially related or merely coincidental based on your recent
increased usage. (Of course you're going to tell me that you put 87 back
in and the engine starts reliably cold and hot. :-D )
Good luck!
Guy Buchanan
Ramona, CA
Kitfox IV-1200 / 912-S / Warp 3cs / 500 hrs. flying again.
Now a glider pilot, too.
S -
-
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
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