Today's Message Index:
----------------------
1. 09:53 AM - Carb flooding (flynno)
2. 01:51 PM - Re: Carb flooding (Thilo Kind)
3. 02:59 PM - Re: Carb flooding (K BURNS)
Message 1
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Hi all, a friend of mine has just finished his 912s powered Savana build
and has been running up the motor. Starts on the button and super
smooth, however after six or seven minutes of taxi up and down the air
strip the port side carb overflows and the motor runs very rough.
We shut down right away and the float bowl is totally full, indicating a
needle and seat problem, when we pressurise the carbs engine off-fuel
pump on then check float level all is normal .Seems this carb will only
overflow when the motor is running.
Both carbs have just come back from the Rotax agent after being checked
over , re installed today but the same problem persist.
Any idea's please.
Flynn
South Africa
Message 2
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Hi Flynn,
Could it be a blockage of the carb overflow tube? The overflow tubes of both
carbs need to see the same pressure, otherwise flooding will occur. If you
extend the overflow tubes, the pressure will vary.
Good luck
Thilo
_____
From: owner-rotaxengines-list-server@matronics.com
[mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of flynno
Sent: Wednesday, June 17, 2009 18:40
Subject: RotaxEngines-List: Carb flooding
Hi all, a friend of mine has just finished his 912s powered Savana build and
has been running up the motor. Starts on the button and super smooth,
however after six or seven minutes of taxi up and down the air strip the
port side carb overflows and the motor runs very rough.
We shut down right away and the float bowl is totally full, indicating a
needle and seat problem, when we pressurise the carbs engine off-fuel pump
on then check float level all is normal .Seems this carb will only overflow
when the motor is running.
Both carbs have just come back from the Rotax agent after being checked over
, re installed today but the same problem persist.
Any idea's please.
Flynn
South Africa
17:55:00
Message 3
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| Subject: | Re: Carb flooding |
Flynn,=0A=0AI have seen this problem caused by a sliver of rubber cut from
inside the rubber fuel hose blocking the float needle from seating, carb ma
y be cleaned then checked on the bench then a sharp edge downstream of filt
er can send a slver in to the float bowl, other problems may be caused by g
ell from automotive fuels evaporating in the carb.=0A=0AKevin=0A=0A=0A=0A
=0A________________________________=0AFrom: Thilo Kind <thilo.kind@gmx.net>
=0ATo: rotaxengines-list@matronics.com=0ASent: Wednesday, 17 June, 2009 9:5
0:41 PM=0ASubject: RE: RotaxEngines-List: Carb flooding=0A=0A=0AHi Flynn,
=0A-=0ACould it be a blockage of the carb overflow tube? The overflow tub
es of both carbs need to see the same pressure, otherwise flooding will occ
ur. If you extend the overflow tubes, the pressure will vary.=0A-=0AGood
luck=0A-=0AThilo=0A-=0A=0A________________________________=0A=0AFrom:ow
ner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-
server@matronics.com] On Behalf Of flynno=0ASent: Wednesday, June 17, 2009
18:40=0ATo: rotaxengines-list@matronics.com=0ASubject: RotaxEngines-List: C
arb flooding=0A-=0AHi all, a friend of mine has just finished his 912s po
wered Savana build-and has been running up the motor. Starts on the butto
n and super smooth, however after six or seven minutes of taxi up and down
the air strip the port side carb overflows and the motor runs very rough.
=0AWe shut down right away and the float bowl is totally full, indicating a
needle and seat problem, when we pressurise the carbs engine off-fuel pump
on then check float level all is normal .Seems this carb will only overflo
w when the motor is running.=0ABoth carbs have just come back from the Rota
x agent after being checked over , re installed today but the same problem
persist.=0AAny idea's please.=0AFlynn=0ASouth Africa=0A -=0A -=0Ahttp:/
/www.matronics.com/Navigator?RotaxEngines-List=0Ahttp://forums.matronics.co
m=0Ahttp://www.matronics.com/contribution=0A -No virus found in this inco
ming message. Checked by AVG - www.avg.com 270.12.70/2177 - Release Date: 0
==
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