Today's Message Index:
----------------------
1. 05:53 AM - Re: Bing carb body (Jim Weston)
2. 10:51 AM - Re: 100 LL vs Mogas (Andy Fultz)
3. 05:36 PM - Re: 100 LL vs Mogas (Jim Weston)
4. 10:56 PM - Re: 100 LL vs Mogas (Andy Fultz)
Message 1
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Sorry that it's taken me, only, six months to catch up on reading my Stratus
emails. But I do have some recent experience/info on this subject.
Fortunately, I haven't had problems with the auto gas gumming up the carbs.
But I did switch to avgas (100LL) for about a year; for other reasons.
Recently, my engine ended up with a loss of compression on one cylinder.
Remembering from the past when I've had lower compression aircraft engines
(those designed to run on the old 80 octane avgas) that the 100LL, even
though it's called Low Lead is actually very high in lead content and will
form lead deposits on the valve seats; causing the valve to not seal well, I
decided to run the engine some and see how it did. I tied the plane down
well and ran the engine for a good warmup and a couple of full power runs.
This caused the lead to clear and the compression came back up. I then
proceeded with my plans and took my grandson for a ride to an airport about
60 miles south of us. All was uneventful. But when I went to the airport a
few days later and pulled the engine thru to feel the compression, after the
engine had cooled thoroughly, I now had almost no compression on three of
the four cylinders. At this point, I decided that it was time to do two
things. One, get the avgas out of the plane, and go back to car gas. And,
two, do as I used to on one of my previous planes and add some TCP to the
fuel. TCP used to be added to leaded car gas (most advertised by Shell;
remember 'Buy Shell with TCP' was the slogan?) to scavenge out the lead.
(By the way, lead in this situation can build up lead deposits on the spark
plugs and foul out the plugs; saw it several times on my 150hp Lycoming in
my Piper Tri-Pacer years back; that's how I learned about adding TCP)
Anyway, I ran the engine, on the ground, for about 10 minutes with most of
the fuel replaced with auto gas (ran out of gas cans to drain the avgas
into) and TCP added. The compression came up nicely on two of the three low
cylinders. The third one was still pretty mushy feeling. I decided to take
it one spin around the pattern to get the temps up and work it at full power
on takeoff. When I checked the next day, after a good cool down, three of
the four cylinders were nice and snappy on compression, and the fourth one
was almost there; just slightly less than the other three. So, I took it
for a 45 minute flight and I'm very happy to say that all four cylinders are
nice and strong/snappy on compression again. This is the same scenario that
I remember from my past experiences with my Lycoming.
Anyway, sorry for the fairly long writeup. I just wanted to pass along some
experience that I hope might be of some help to someone. The moral to the
story is the avgas will run fine, just be careful about lead buildup long
term in lower compression engines. Maybe this info will save someone from
tearing the engine apart when the compression drops off for what turns out
to be a simple reason.
Jim Weston
CH601HDS w/Stratus, flying it since 1998
_____
From: owner-stratus-list-server@matronics.com
[mailto:owner-stratus-list-server@matronics.com] On Behalf Of ron hansen
Sent: Friday, April 19, 2013 5:44 PM
Subject: Re: Stratus-List: Bing carb body
Gary,
Sorry I don't have a carb body for you, but I can also say auto gas gummed
up my carbs causing lots of delays and expense. Fortunately all prior to my
first flight. I switched to avgas after getting the carbs cleaned out and
I'm not going back. Auto gas starts getting cloudy and gummy very quickly
especially her in California.
Ron Hansen
Los Angeles
On Thu, Apr 18, 2013 at 7:28 AM, gary krysztopik <pelican640@yahoo.com>
wrote:
Hello Stratus owners,
Does anyone have a Bing Model 64 carb or carb body that they could sell?
Auto gas gummed up a jet and it broke off, and I wrecked the carb body
trying to get it out.
I looked on ebay and there are a few old ones for about $120 so that's my
plan right now.
I appreciate any help,
Gary
target="_blank">http://www.matronics.com/Navigator?Stratus-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
Message 2
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| Subject: | Re: 100 LL vs Mogas |
Jim,
I'm curious as to how many hours you had on your engine when you started t
o have problems?
Andy F
Sent from my iPad
On Oct 24, 2013, at 7:52 AM, "Jim Weston" <k4cod@bellsouth.net> wrote:
> Sorry that it's taken me, only, six months to catch up on reading my Strat
us emails. But I do have some recent experience/info on this subject.
>
> Fortunately, I haven't had problems with the auto gas gumming up the carbs
. But I did switch to avgas (100LL) for about a year; for other reasons. R
ecently, my engine ended up with a loss of compression on one cylinder. Rem
embering from the past when I've had lower compression aircraft engines (tho
se designed to run on the old 80 octane avgas) that the 100LL, even though i
t's called Low Lead is actually very high in lead content and will form lead
deposits on the valve seats; causing the valve to not seal well, I decided t
o run the engine some and see how it did. I tied the plane down well and ra
n the engine for a good warmup and a couple of full power runs. This caused
the lead to clear and the compression came back up. I then proceeded with m
y plans and took my grandson for a ride to an airport about 60 miles south o
f us. All was uneventful. But when I went to the airport a few days later a
nd pulled the engine thru to feel the compression, after the engine had cool
ed thoroughly, I now had almost no compression on three of the four cylinder
s. At this point, I decided that it was time to do two things. One, get the
avgas out of the plane, and go back to car gas. And, two, do as I used to o
n one of my previous planes and add some TCP to the fuel. TCP used to be ad
ded to leaded car gas (most advertised by Shell; remember 'Buy Shell with TC
P' was the slogan?) to scavenge out the lead. (By the way, lead in this sit
uation can build up lead deposits on the spark plugs and foul out the plugs;
saw it several times on my 150hp Lycoming in my Piper Tri-Pacer years back;
that's how I learned about adding TCP) Anyway, I ran the engine, on the gr
ound, for about 10 minutes with most of the fuel replaced with auto gas (ran
out of gas cans to drain the avgas into) and TCP added. The compression ca
me up nicely on two of the three low cylinders. The third one was still pre
tty mushy feeling. I decided to take it one spin around the pattern to get t
he temps up and work it at full power on takeoff. When I checked the next d
ay, after a good cool down, three of the four cylinders were nice and snappy
on compression, and the fourth one was almost there; just slightly less tha
n the other three. So, I took it for a 45 minute flight and I'm very happy t
o say that all four cylinders are nice and strong/snappy on compression agai
n. This is the same scenario that I remember from my past experiences with m
y Lycoming.
>
> Anyway, sorry for the fairly long writeup. I just wanted to pass along so
me experience that I hope might be of some help to someone. The moral to th
e story is the avgas will run fine, just be careful about lead buildup long t
erm in lower compression engines. Maybe this info will save someone from te
aring the engine apart when the compression drops off for what turns out to b
e a simple reason.
>
> Jim Weston
> CH601HDS w/Stratus, flying it since 1998
>
> From: owner-stratus-list-server@matronics.com [mailto:owner-stratus-list-s
erver@matronics.com] On Behalf Of ron hansen
> Sent: Friday, April 19, 2013 5:44 PM
> To: stratus-list@matronics.com
> Subject: Re: Stratus-List: Bing carb body
>
> Gary,
>
> Sorry I don't have a carb body for you, but I can also say auto gas gummed
up my carbs causing lots of delays and expense. Fortunately all prior to m
y first flight. I switched to avgas after getting the carbs cleaned out and
I'm not going back. Auto gas starts getting cloudy and gummy very quickly e
specially her in California.
>
> Ron Hansen
> Los Angeles
>
>
>
> On Thu, Apr 18, 2013 at 7:28 AM, gary krysztopik <pelican640@yahoo.com> wr
ote:
> Hello Stratus owners,
>
> Does anyone have a Bing Model 64 carb or carb body that they could sell? A
uto gas gummed up a jet and it broke off, and I wrecked the carb body trying
to get it out.
>
> I looked on ebay and there are a few old ones for about $120 so that's my p
lan right now.
>
> I appreciate any help,
> Gary
>
>
>
>
> target="_blank">http://www.matronics.com/Navigator?Stratus-List
> tp://forums.matronics.com
> _blank">http://www.matronics.com/contribution
>
>
>
>
> http://www.matronics.com/Navigator?Stratus-List
> http://forums.matronics.com
> http://www.matronics.com/contribution
>
>
>
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| Subject: | Re: 100 LL vs Mogas |
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| Subject: | Re: 100 LL vs Mogas |
I'm pushing 400 hours on mine running avgas and have not noticed the problem
s you have encountered. Maybe I should run a tank of Mogas once in a while
to "delead" mine so I won't have any problems. I just don't trust Mogas to
be the same stuff every time I get it and I know avgas is the same every ti
me.
Andy F.
Sent from my iPad
On Oct 24, 2013, at 7:36 PM, Jim Weston <k4cod@bellsouth.net> wrote:
> It was at about the 245 hr point when I started using avgas. Now at 263 h
r when I had the lead buildup problem. However, the problem that I've encou
ntered really has nothing to do with total time on the engine.
>
> Jim
>
>
> Sent from my Verizon Wireless 4G LTE Smartphone
>
>
>
> -------- Original message --------
> From: Andy Fultz <andynfultz@bellsouth.net>
> Date: 10/24/2013 1:51 PM (GMT-05:00)
> To: stratus-list@matronics.com
> Subject: Re: Stratus-List: 100 LL vs Mogas
>
>
> Jim,
> I'm curious as to how many hours you had on your engine when you started
to have problems?
>
> Andy F
>
> Sent from my iPad
>
> On Oct 24, 2013, at 7:52 AM, "Jim Weston" <k4cod@bellsouth.net> wrote:
>
>> Sorry that it's taken me, only, six months to catch up on reading my Stra
tus emails. But I do have some recent experience/info on this subject.
>>
>> Fortunately, I haven't had problems with the auto gas gumming up the carb
s. But I did switch to avgas (100LL) for about a year; for other reasons. R
ecently, my engine ended up with a loss of compression on one cylinder. Rem
embering from the past when I've had lower compression aircraft engines (tho
se designed to run on the old 80 octane avgas) that the 100LL, even though i
t's called Low Lead is actually very high in lead content and will form lead
deposits on the valve seats; causing the valve to not seal well, I decided t
o run the engine some and see how it did. I tied the plane down well and ra
n the engine for a good warmup and a couple of full power runs. This caused
the lead to clear and the compression came back up. I then proceeded with m
y plans and took my grandson for a ride to an airport about 60 miles south o
f us. All was uneventful. But when I went to the airport a few days later a
nd pulled the engine thru to feel the compression, after the engine had cool
ed thoroughly, I now had almost no compression on three of the four cylinder
s. At this point, I decided that it was time to do two things. One, get the
avgas out of the plane, and go back to car gas. And, two, do as I used to o
n one of my previous planes and add some TCP to the fuel. TCP used to be ad
ded to leaded car gas (most advertised by Shell; remember 'Buy Shell with TC
P' was the slogan?) to scavenge out the lead. (By the way, lead in this sit
uation can build up lead deposits on the spark plugs and foul out the plugs;
saw it several times on my 150hp Lycoming in my Piper Tri-Pacer years back;
that's how I learned about adding TCP) Anyway, I ran the engine, on the gr
ound, for about 10 minutes with most of the fuel replaced with auto gas (ran
out of gas cans to drain the avgas into) and TCP added. The compression ca
me up nicely on two of the three low cylinders. The third one was still pre
tty mushy feeling. I decided to take it one spin around the pattern to get t
he temps up and work it at full power on takeoff. When I checked the next d
ay, after a good cool down, three of the four cylinders were nice and snappy
on compression, and the fourth one was almost there; just slightly less tha
n the other three. So, I took it for a 45 minute flight and I'm very happy t
o say that all four cylinders are nice and strong/snappy on compression agai
n. This is the same scenario that I remember from my past experiences with m
y Lycoming.
>>
>> Anyway, sorry for the fairly long writeup. I just wanted to pass along s
ome experience that I hope might be of some help to someone. The moral to t
he story is the avgas will run fine, just be careful about lead buildup long
term in lower compression engines. Maybe this info will save someone from t
earing the engine apart when the compression drops off for what turns out to
be a simple reason.
>>
>> Jim Weston
>> CH601HDS w/Stratus, flying it since 1998
>>
>> From: owner-stratus-list-server@matronics.com [mailto:owner-stratus-list-
server@matronics.com] On Behalf Of ron hansen
>> Sent: Friday, April 19, 2013 5:44 PM
>> To: stratus-list@matronics.com
>> Subject: Re: Stratus-List: Bing carb body
>>
>> Gary,
>>
>> Sorry I don't have a carb body for you, but I can also say auto gas gumme
d up my carbs causing lots of delays and expense. Fortunately all prior to m
y first flight. I switched to avgas after getting the carbs cleaned out and
I'm not going back. Auto gas starts getting cloudy and gummy very quickly e
specially her in California.
>>
>> Ron Hansen
>> Los Angeles
>>
>>
>>
>> On Thu, Apr 18, 2013 at 7:28 AM, gary krysztopik <pelican640@yahoo.com> w
rote:
>> Hello Stratus owners,
>>
>> Does anyone have a Bing Model 64 carb or carb body that they could sell?
Auto gas gummed up a jet and it broke off, and I wrecked the carb body tryi
ng to get it out.
>>
>> I looked on ebay and there are a few old ones for about $120 so that's my
plan right now.
>>
>> I appreciate any help,
>> Gary
>>
>>
>>
>>
>> target="_blank">http://www.matronics.com/Navigator?Stratus-List
>> tp://forums.matronics.com
>> _blank">http://www.matronics.com/contribution
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