Today's Message Index:
----------------------
1. 02:13 AM - Power loss, on taxi, vapour locking? (Richard Lamprey)
2. 07:53 AM - Re: Power loss, on taxi, vapour locking? (Jeff B)
3. 10:40 AM - Re: Power loss, on taxi, vapour locking? (Terry Seaver (terrys))
4. 05:14 PM - Electric winch or hand crank? (Martin Tuck)
Message 1
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| Subject: | Power loss, on taxi, vapour locking? |
Greetings from Kenya, using the new modern approach of communication with the forum
(thanks Ira!)
My Europa is classic, Rotax 912 UL, Warpdrive ground-adjusted prop. 550 hours
on the engine. The airfield altitude is 5500, the temperature was 28 C, so hot
and high but we are used to that.
Yesterday, I landed and back-tracked the runway, and on backtrack the engine suddenly
lost power. Full power to expedite the backtrack, she ran very rough,
almost cutting out. Reducing on the throttle just gave me a smooth 3000 rpm,
enough to move slowly. Back at the hangar, I opened up the cowlings, ran a fuel
flow check, no problems, plenty of fuel pressure (200% of max requirements).
Cleaned the plugs (quite clean, nothing unusual). Checked for full deflection
of the throttle cable at both carb ends, no problem there. The vapour return
line was clear, so no problem there. I closed up, did full power run up,
no problems, flew for another 15 minutes without incident.
Could this be due to vapour lock in the fuel lines under the cowling? The fuel
lines from fuel pump back to carbs runs in fire-sleeve along the top right side
of the engine, but I think this is pretty standard. On the previous landing
I had to go around, so full power and she was running quite hot, but nothing
unusual. We use unleaded petrol (95 octane), and I have read somewhere that
in UK you should not use mogas above 6000 density altitude due to vapour locking
characteristics. So every takeoff we do here is above this altitude anyway.
Does anyone have an idea of what caused this?
Best
Richard
Classic 5Y-LRY
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=350410#350410
Message 2
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| Subject: | Re: Power loss, on taxi, vapour locking? |
Richard,
Two things... Yes, it could be vapor lock. Check fuel lines and
insulate as needed. I used the orange silicone, 2000 degree cover and
it works well. Second, check to see that you don't have a leaky exhaust
that might allow heat to get to the carb bowls. This will boil the fuel
in them and cause the same effect as vapor lock.
Hope this helps.
Jeff - Baby Blue
On 8/24/2011 4:09 AM, Richard Lamprey wrote:
> --> Europa-List message posted by: "Richard Lamprey"<lamprey.richard@gmail.com>
>
> Greetings from Kenya, using the new modern approach of communication with the
forum (thanks Ira!)
>
> My Europa is classic, Rotax 912 UL, Warpdrive ground-adjusted prop. 550 hours
on the engine. The airfield altitude is 5500, the temperature was 28 C, so
hot and high but we are used to that.
>
> Yesterday, I landed and back-tracked the runway, and on backtrack the engine
suddenly lost power. Full power to expedite the backtrack, she ran very rough,
almost cutting out. Reducing on the throttle just gave me a smooth 3000 rpm,
enough to move slowly. Back at the hangar, I opened up the cowlings, ran a
fuel flow check, no problems, plenty of fuel pressure (200% of max requirements).
Cleaned the plugs (quite clean, nothing unusual). Checked for full deflection
of the throttle cable at both carb ends, no problem there. The vapour return
line was clear, so no problem there. I closed up, did full power run up,
no problems, flew for another 15 minutes without incident.
>
> Could this be due to vapour lock in the fuel lines under the cowling? The fuel
lines from fuel pump back to carbs runs in fire-sleeve along the top right
side of the engine, but I think this is pretty standard. On the previous landing
I had to go around, so full power and she was running quite hot, but nothing
unusual. We use unleaded petrol (95 octane), and I have read somewhere that
in UK you should not use mogas above 6000 density altitude due to vapour locking
characteristics. So every takeoff we do here is above this altitude anyway.
>
> Does anyone have an idea of what caused this?
>
> Best
> Richard
> Classic 5Y-LRY
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=350410#350410
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
>
>
Message 3
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| Subject: | Power loss, on taxi, vapour locking? |
We have a mono-wheel XS with a 912S and have had vapor lock on several occasions,
on the ground and in the air. We solved the problem by putting some aluminized
heat mat on the underside of the carb bowls and fuel lines and fittings near
the carbs that are too small to be covered in fire sleeve. This protected
those parts from the heat of the rear exhaust headers.
Regards,
Terry Seaver
A135/N135TD
-----Original Message-----
From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Richard Lamprey
Sent: Wednesday, August 24, 2011 2:10 AM
Subject: Europa-List: Power loss, on taxi, vapour locking?
Greetings from Kenya, using the new modern approach of communication with the forum
(thanks Ira!)
My Europa is classic, Rotax 912 UL, Warpdrive ground-adjusted prop. 550 hours
on the engine. The airfield altitude is 5500, the temperature was 28 C, so hot
and high but we are used to that.
Yesterday, I landed and back-tracked the runway, and on backtrack the engine suddenly
lost power. Full power to expedite the backtrack, she ran very rough,
almost cutting out. Reducing on the throttle just gave me a smooth 3000 rpm,
enough to move slowly. Back at the hangar, I opened up the cowlings, ran a fuel
flow check, no problems, plenty of fuel pressure (200% of max requirements).
Cleaned the plugs (quite clean, nothing unusual). Checked for full deflection
of the throttle cable at both carb ends, no problem there. The vapour return
line was clear, so no problem there. I closed up, did full power run up,
no problems, flew for another 15 minutes without incident.
Could this be due to vapour lock in the fuel lines under the cowling? The fuel
lines from fuel pump back to carbs runs in fire-sleeve along the top right side
of the engine, but I think this is pretty standard. On the previous landing
I had to go around, so full power and she was running quite hot, but nothing
unusual. We use unleaded petrol (95 octane), and I have read somewhere that
in UK you should not use mogas above 6000 density altitude due to vapour locking
characteristics. So every takeoff we do here is above this altitude anyway.
Does anyone have an idea of what caused this?
Best
Richard
Classic 5Y-LRY
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=350410#350410
Message 4
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| Subject: | Electric winch or hand crank? |
Hi Folks,
I think I asked this question before but I couldn't have kept the responses.
Someone recommended a electric powered winch to pull my monowheel onto
its trailer. I've read some reviews on Amazon but there are
diametrically opposed views on how good a job they do. The main
complaint being how slow they are or not very well built.
Ideally I would want one with a remote but I can't seem to find one with
a wireless remote, some have a wired remote but the cable seems too
short as I want to hold onto the wingtip to keep it level while the
winch does it's thing.
Alternatively I could keep it simple and use a hand crank - but the
wings will need to be kept level. I have made some attachments which
help some but once the tipping momentum gets going on side or the other
my hinged spring legs give way. You guys that use a trailer all time
must be using something. It takes me a good 30 mins to get everything up
on the trailer and seemingly a lot of physical strength - not good when
temps are in the 80s and 90s.
Also, when cranking what is the best thing to attach the cable to? Cable
round the axle on the side opposite to the brake came to mind. Not sure
I would want to pull on the tailwheel although that seems an obvious choice.
Any thoughts would be appreciated.
Not much flying this summer - we have had 45 days of 100+ F temps in
Wichita so far this year. The record is 50 days. Today was 106 deg F. Phew!
Regards,
Martin Tuck
N152MT
Wichita, Kansas
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