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JabiruEngine-List Digest: 3 Msgs - 04/23/18

 
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cffd66(at)yahoo.com
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PostPosted: Tue Apr 24, 2018 6:34 am    Post subject: JabiruEngine-List Digest: 3 Msgs - 04/23/18 Reply with quote
Be careful with oil additives. For example, Avblend is not recommended as it dissolves some of the sealants used between the case halves, etc. I don't know about Sea Foam Deep Creep.
Regards,
Chuck D.

From: JabiruEngine-List Digest Server <jabiruengine-list(at)matronics.com>
To: JabiruEngine-List Digest List <jabiruengine-list-digest(at)matronics.com>
Sent: Tuesday, April 24, 2018 1:41 AM
Subject: JabiruEngine-List Digest: 3 Msgs - 04/23/18


*

=========================

Online Versions of Today's List Digest Archive

=========================

Today's complete JabiruEngine-List Digest can also be found in either of the

two Web Links listed below. The .html file includes the Digest formatted

in HTML for viewing with a web browser and features Hyperlinked Indexes

and Message Navigation. The .txt file includes the plain ASCII version

of the JabiruEngine-List Digest and can be viewed with a generic text editor

such as Notepad or with a web browser.

HTML Version:

http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter=2018-04-23&Archive=JabiruEngine

Text Version:

http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter=2018-04-23&Archive=JabiruEngine

=======================

EMail Version of Today's List Digest Archive

=======================



----------------------------------------------------------

JabiruEngine-List Digest Archive

  ---

Total Messages Posted Mon 04/23/18: 3

----------------------------------------------------------








________________________________ Message 1 _____________________________________

Time: 07:27:36 AM PST US

From: Bobby Paulk <bobbypaulk(at)comcast.net (bobbypaulk(at)comcast.net)>

Subject: compression

While doing my "Condition" inspection I found that #3 cylinder had dropped to 56

/ 80 on the differential compression gauge ( engine warm ). The other five were

72, 74, and 76 average. The leak is through the rings because I can hear it

in the Crankcase breather line to the catch can. The next day ( engine cold

) I put a pressure gauge on the cylinders and spun the engine with the starter.

All cylinders were up to 90 psi or above including the #3.

The engine is not using oil excessively ( about one to two ounces per hour ) and

the oil is clean - about the color of maple syrup after 25 hrs on it. I sprayed

all the cylinders with Sea Foam Deep Creep and am letting it sit until I

get back there to run it and check differential compression again.

Has anyone dealt with this problem or know how to fix. I plan on flying it for

a for an hour or two and try the differential compression test again.

Thanks for any input.

Bobby

Jabiru 3300 295 hrs.

Zodiac 601 B

________________________________  Message 2 _____________________________________

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simmor2



Joined: 29 Jun 2015
Posts: 26
Location: Murfreesboro, TN
PostPosted: Tue Apr 24, 2018 7:02 am    Post subject: JabiruEngine-List Digest: 3 Msgs - 04/23/18 Reply with quote
So, it was recommended to me to run the engine up in rpm fairly frequently to get the cylinders hot Enough to keep things clean. (Burning off carbon)

Just my 2 cents

- Rich

Quote:
On Apr 24, 2018, at 1:36 AM, JabiruEngine-List Digest Server <jabiruengine-list(at)matronics.com> wrote:

*

==================================================
Online Versions of Today's List Digest Archive
==================================================

Today's complete JabiruEngine-List Digest can also be found in either of the
two Web Links listed below. The .html file includes the Digest formatted
in HTML for viewing with a web browser and features Hyperlinked Indexes
and Message Navigation. The .txt file includes the plain ASCII version
of the JabiruEngine-List Digest and can be viewed with a generic text editor
such as Notepad or with a web browser.

HTML Version:

http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter 18-04-23&Archive=JabiruEngine

Text Version:

http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 18-04-23&Archive=JabiruEngine


================================================
EMail Version of Today's List Digest Archive
================================================


----------------------------------------------------------
JabiruEngine-List Digest Archive
---
Total Messages Posted Mon 04/23/18: 3
----------------------------------------------------------


Today's Message Index:
----------------------

1. 07:27 AM - compression (Bobby Paulk)
2. 03:58 PM - Re: compression (Tex Mantell)
3. 07:31 PM - Re: compression (Tim Yoder)



________________________________ Message 1 _____________________________________


Time: 07:27:36 AM PST US
From: Bobby Paulk <bobbypaulk(at)comcast.net>
Subject: compression

While doing my "Condition" inspection I found that #3 cylinder had dropped to 56
/ 80 on the differential compression gauge ( engine warm ). The other five were
72, 74, and 76 average. The leak is through the rings because I can hear it
in the Crankcase breather line to the catch can. The next day ( engine cold
) I put a pressure gauge on the cylinders and spun the engine with the starter.
All cylinders were up to 90 psi or above including the #3.

The engine is not using oil excessively ( about one to two ounces per hour ) and
the oil is clean - about the color of maple syrup after 25 hrs on it. I sprayed
all the cylinders with Sea Foam Deep Creep and am letting it sit until I
get back there to run it and check differential compression again.

Has anyone dealt with this problem or know how to fix. I plan on flying it for
a for an hour or two and try the differential compression test again.

Thanks for any input.

Bobby

Jabiru 3300 295 hrs.

Zodiac 601 B

________________________________ Message 2 _____________________________________


Time: 03:58:09 PM PST US
From: Tex Mantell <wb2ssj(at)rochester.rr.com>
Subject: RE: compression

Whats sea foam?

Sent from Mail for Windows 10

From: Bobby Paulk
Sent: Monday, April 23, 2018 10:26 AM
Subject: compression

While doing my "Condition" inspection I found that #3 cylinder had dropped
to 56 / 80 on the differential compression gauge ( engine warm ). The other
five were 72, 74, and 76 average. The leak is through the rings because I
can hear it in the Crankcase breather line to the catch can. The next day (
engine cold ) I put a pressure gauge on the cylinders and spun the engine
with the starter. All cylinders were up to 90 psi or above including the #3
..
=C2-The engine is not using oil excessively ( about one to two ounces per
hour ) and the oil is clean - about the color of maple syrup after 25 hrs
on it. I sprayed all the cylinders with Sea Foam Deep Creep and am letting
it sit until I get back there to run it and check differential compression
again.
Has anyone dealt with this problem or know how to fix. I plan on flying it
for a for an hour or two and try the differential compression test again.
Thanks for any input.
Bobby
Jabiru 3300 295 hrs.
Zodiac 601 B


________________________________ Message 3 _____________________________________


Time: 07:31:26 PM PST US
From: "Tim Yoder" <ftyoder(at)yoderbuilt.com>
Subject: RE: compression

Sounds like you are doing the correct things prior to the next check.

On your next flight I would recommend high power setting to help clean
potential dirty rings.


Tim


From: owner-jabiruengine-list-server(at)matronics.com
<owner-jabiruengine-list-server(at)matronics.com> On Behalf Of Bobby Paulk
Sent: Monday, April 23, 2018 7:26 AM
Subject: compression


While doing my "Condition" inspection I found that #3 cylinder had
dropped to 56 / 80 on the differential compression gauge ( engine warm
). The other five were 72, 74, and 76 average. The leak is through the
rings because I can hear it in the Crankcase breather line to the catch
can. The next day ( engine cold ) I put a pressure gauge on the
cylinders and spun the engine with the starter. All cylinders were up to
90 psi or above including the #3.

The engine is not using oil excessively ( about one to two ounces per
hour ) and the oil is clean - about the color of maple syrup after 25
hrs on it. I sprayed all the cylinders with Sea Foam Deep Creep and am
letting it sit until I get back there to run it and check differential
compression again.

Has anyone dealt with this problem or know how to fix. I plan on flying
it for a for an hour or two and try the differential compression test
again.

Thanks for any input.

Bobby

Jabiru 3300 295 hrs.

Zodiac 601 B










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