Today's Message Index:
----------------------
1. 01:57 AM - Re: Popham Microlight Fair (UK) (Duncan & Ami)
2. 12:45 PM - 914 rough running (Jerry Rehn)
3. 12:58 PM - Re: 914 rough running (Robert Borger)
4. 05:13 PM - Re: 914 rough running (Jerry Rehn)
5. 05:45 PM - Re: 914 rough running (Robert Borger)
6. 08:37 PM - Re: 914 rough running (Jerry Rehn)
Message 1
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| Subject: | Popham Microlight Fair (UK) |
Not wishing necessarily to defend the "flex-wing boys", but I've been
cut up
by a Cub (cutting under and in front on final; he ".....didn't see me")
at
one of those events. So Europas are too slow for cubs?
Otherwise a place to be avoided during these events!
Duncan McF
do not archive
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of
nigel_graham@m-tecque.co.uk
Sent: 04 May 2013 23:25
Subject: Re: Europa-List: Popham Microlight Fair (UK)
Hi Fred,
I too thought those "procedures" were rather gracelessly worded. It's a
curious way of welcoming visitors, and totally out of character with an
airfield that enjoys a friendly atmosphere and hosts numerous
well-attended
events each year. I think it was strongly worded to make an impression
on
the flex-wing boys that have a bit of a reputation for joining in the
style
of Dick Turpin, and leaving with the enthusiasm of a bunch of
five-year-olds
at going-home time!
With regards to that Google Earthe picture, I've just looked at it and
can
confirm that those aircraft numbers represent the residents (including
the
Antanov AN2). On a fly-in day, that number can over double with aircraft
parking down both sides of 03/21.
The Europa Club AGM a couple of years back boasted about 34 Europas
(someone will correct me if that is wrong) in a line It looked
impressive
from the air.
<!--[if !supportEmptyParas]--> <!--[endif]-->
Nigel
On 04/05/2013 16:15, Fred Klein wrote:
On May 3, 2013, at 10:43 PM, nigel_graham@m-tecque.co.uk wrote:
Just a reminder to UK flyers that the Microlight Fair takes place this
weekend at Popham Airfield (EGHP).
The weather does not look too bad for a change. Popham Procedures below
to save you looking them up.
http://www.popham-airfield.co.uk/Microlight%20Trade%20Fair%20Procedures.p
df
Nigel,
After reading the Popham Procedures (charming!) and having a peek via
Google
Earth, I'm tempted to put a visit on my schedule for next year if the
event
attracts a goodly number of UK Europas.
The current Google Earth photo shows many aircraft on tie-downs...is
this an
indication of the number of planes based at Popham, or was the photo
taken
during an event?
Fred
do not archive
Message 2
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| Subject: | 914 rough running |
A little history. Engine has about 450 hours, always ran quite well,
replaced upper ignition module about two years ago.
On recent full boost takeoff, got to about 900 feet leveled off, pulled
throttle back and engine ran severe rough, pulled back to idle and engine
ran ok, didn't stop! Landed. Checked fuel filter, ok, looked for anything
around carbs, nothing. Tried several full run ups, ok. Tried second take off
everything fine, pulled back and again engine ran severe rough, pulled back
to idle, ran rough, landed. Parked plane, got tools, next day removed carbs
looked for issues. Found one of the four screws that holds down the rubber
diaphragm loose, very strange because I have never removed this before.
Anyway figured this was my problem. Fixed took off all ok. Got home. Next
day tried full boost, same issue again, didn't take off. Got carburetor
repair kit and went through both carbs. Reinstalled carbs double checked.
Started right up, as I move the throttle past 2300 rpm the yellow caution
light starts blinking, engine runs rough, reduce rpm the light goes off,
increase the light comes back on. Seems the engine runs off the idle jet ok
but not on the main jet.
I have also checked the waste gate for proper function, fuel pressure ok,
turbo lights come on and go off as they should when master is tuned on, I
have looked at the vent lines. The yellow blinking light can indicate a
sensor failure, seems like it would continue blinking if there was a
failure. Seems odd that it stops at low rpm. Seems I have some kind of a
vacuum or pressure issue, but am running out of ideas. I am about to go and
recheck again! Could a faulty sensor cause this?
Hope someone out there has some wise thoughts on this frustrating problem.
Worse yet, we have beautiful spring flying weather!
Thanks for help.
Jerry
914 Mono XS
Message 3
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| Subject: | Re: 914 rough running |
Jerry,
When you rebuilt the carbs, did the rebuild kit come with "O" rings
rather than gaskets for the big bolt that holds the carb bowl on?
Blue skies & tailwinds,
Bob Borger
Europa XS Tri, Rotax 914, Airmaster C/S Prop.
Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP
3705 Lynchburg Dr.
Corinth, TX 76208-5331
Cel: 817-992-1117
rlborger@mac.com
On May 5, 2013, at 2:43 PM, Jerry Rehn <rehn@rockisland.com> wrote:
A little history. Engine has about 450 hours, always ran quite well,
replaced upper ignition module about two years ago.
On recent full boost takeoff, got to about 900 feet leveled off, pulled
throttle back and engine ran severe rough, pulled back to idle and
engine ran ok, didn=92t stop! Landed. Checked fuel filter, ok, looked
for anything around carbs, nothing. Tried several full run ups, ok.
Tried second take off everything fine, pulled back and again engine ran
severe rough, pulled back to idle, ran rough, landed. Parked plane, got
tools, next day removed carbs looked for issues. Found one of the four
screws that holds down the rubber diaphragm loose, very strange because
I have never removed this before. Anyway figured this was my problem.
Fixed took off all ok. Got home. Next day tried full boost, same issue
again, didn=92t take off. Got carburetor repair kit and went through
both carbs. Reinstalled carbs double checked. Started right up, as I
move the throttle past 2300 rpm the yellow caution light starts
blinking, engine runs rough, reduce rpm the light goes off, increase the
light comes back on. Seems the engine runs off the idle jet ok but not
on the main jet.
I have also checked the waste gate for proper function, fuel pressure
ok, turbo lights come on and go off as they should when master is tuned
on, I have looked at the vent lines. The yellow blinking light can
indicate a sensor failure, seems like it would continue blinking if
there was a failure. Seems odd that it stops at low rpm. Seems I have
some kind of a vacuum or pressure issue, but am running out of ideas. I
am about to go and recheck again! Could a faulty sensor cause this?
Hope someone out there has some wise thoughts on this frustrating
problem. Worse yet, we have beautiful spring flying weather!
Thanks for help.
Jerry
914 Mono XS
Message 4
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| Subject: | Re: 914 rough running |
Bob
The kit didn't include the o ring, go figure. I had to order them separately
, but that's what I have on now, which replaced the old style flat washer.
Sent from my iPad
On May 5, 2013, at 12:57 PM, Robert Borger <rlborger@mac.com> wrote:
> Jerry,
>
> When you rebuilt the carbs, did the rebuild kit come with "O" rings rather
than gaskets for the big bolt that holds the carb bowl on?
>
> Blue skies & tailwinds,
> Bob Borger
> Europa XS Tri, Rotax 914, Airmaster C/S Prop.
> Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP
> 3705 Lynchburg Dr.
> Corinth, TX 76208-5331
> Cel: 817-992-1117
> rlborger@mac.com
>
> On May 5, 2013, at 2:43 PM, Jerry Rehn <rehn@rockisland.com> wrote:
>
> A little history. Engine has about 450 hours, always ran quite well, repla
ced upper ignition module about two years ago.
> On recent full boost takeoff, got to about 900 feet leveled off, pulled th
rottle back and engine ran severe rough, pulled back to idle and engine ran o
k, didn=99t stop! Landed. Checked fuel filter, ok, looked for anything
around carbs, nothing. Tried several full run ups, ok. Tried second take of
f everything fine, pulled back and again engine ran severe rough, pulled bac
k to idle, ran rough, landed. Parked plane, got tools, next day removed carb
s looked for issues. Found one of the four screws that holds down the rubber
diaphragm loose, very strange because I have never removed this before. Any
way figured this was my problem. Fixed took off all ok. Got home. Next day t
ried full boost, same issue again, didn=99t take off. Got carburetor r
epair kit and went through both carbs. Reinstalled carbs double checked. Sta
rted right up, as I move the throttle past 2300 rpm the yellow caution light
starts blinking, engine runs rough, reduce rpm the light goes off, increase
the light comes back on. Seems the engine runs off the idle jet ok but not o
n the main jet.
> I have also checked the waste gate for proper function, fuel pressure ok, t
urbo lights come on and go off as they should when master is tuned on, I hav
e looked at the vent lines. The yellow blinking light can indicate a sensor f
ailure, seems like it would continue blinking if there was a failure. Seems o
dd that it stops at low rpm. Seems I have some kind of a vacuum or pressure i
ssue, but am running out of ideas. I am about to go and recheck again! Could
a faulty sensor cause this?
> Hope someone out there has some wise thoughts on this frustrating problem.
Worse yet, we have beautiful spring flying weather!
> Thanks for help.
> Jerry
> 914 Mono XS
>
>
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Message 5
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| Subject: | Re: 914 rough running |
Jerry,
OK. That's your problem if you tightened the bolt to published Rotax
torque specs.
The O-ring is considerably thicker than the flat fiber washer. It
deforms the base of the carb bowl upwards so that it restricts the fuel
flow into the main jet. You don't have enough fuel flow to get your RPM
above 2200-2400 RPM.
I chased this same problem for almost 3 months before Nathan, the Rotax
tech from U.S.Aviation, happened to stop by the hanger one day. He
looked at it and immediately saw the problem as he'd worked on another
Europa with the same issue. I taxied the aircraft over to his shop and
he had it fixed in 2 days. He took the carb bowls off and restored them
to the correct shape. Then reassembled them carefully with just enough
torque on the bolt to seat the O-ring but not deform the bowl.
I don't know what technique Nathan used to correct the bent bowl bottom,
but that will have to be done. Maybe you can find a Rotax tech in your
area familiar with the problem who can do it for you.
Blue skies & tailwinds,
Bob Borger
Europa XS Tri, Rotax 914, Airmaster C/S Prop.
Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP
3705 Lynchburg Dr.
Corinth, TX 76208-5331
Cel: 817-992-1117
rlborger@mac.com
On May 5, 2013, at 7:12 PM, Jerry Rehn <rehn@rockisland.com> wrote:
Bob
The kit didn't include the o ring, go figure. I had to order them
separately, but that's what I have on now, which replaced the old style
flat washer.
Sent from my iPad
Message 6
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| Subject: | Re: 914 rough running |
Bob
Any idea what torque setting he used? And how he reshaped the bowls?
Sent from my iPad
On May 5, 2013, at 5:45 PM, Robert Borger <rlborger@mac.com> wrote:
> Jerry,
>
> OK. That's your problem if you tightened the bolt to published Rotax torq
ue specs.
>
> The O-ring is considerably thicker than the flat fiber washer. It deforms
the base of the carb bowl upwards so that it restricts the fuel flow into t
he main jet. You don't have enough fuel flow to get your RPM above 2200-240
0 RPM.
>
> I chased this same problem for almost 3 months before Nathan, the Rotax te
ch from U.S.Aviation, happened to stop by the hanger one day. He looked at i
t and immediately saw the problem as he'd worked on another Europa with the s
ame issue. I taxied the aircraft over to his shop and he had it fixed in 2 d
ays. He took the carb bowls off and restored them to the correct shape. Th
en reassembled them carefully with just enough torque on the bolt to seat th
e O-ring but not deform the bowl.
>
> I don't know what technique Nathan used to correct the bent bowl bottom, b
ut that will have to be done. Maybe you can find a Rotax tech in your area f
amiliar with the problem who can do it for you.
>
> Blue skies & tailwinds,
> Bob Borger
> Europa XS Tri, Rotax 914, Airmaster C/S Prop.
> Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP
> 3705 Lynchburg Dr.
> Corinth, TX 76208-5331
> Cel: 817-992-1117
> rlborger@mac.com
>
> On May 5, 2013, at 7:12 PM, Jerry Rehn <rehn@rockisland.com> wrote:
>
> Bob
> The kit didn't include the o ring, go figure. I had to order them separate
ly, but that's what I have on now, which replaced the old style flat washer.
>
> Sent from my iPad
>
>
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