Today's Message Index:
----------------------
1. 08:35 AM - Oily Prop (727gs)
2. 08:46 AM - Re: Oily Prop (John B)
3. 08:48 AM - Re: Oily Prop (Justin Drafts)
4. 10:03 AM - Re: Oily Prop (Walter Lannon)
5. 12:17 PM - Valve Guide Cylinder Question (HS6A) (Philip Nicholson)
6. 01:03 PM - Re: Valve Guide Cylinder Question (HS6A) (George S. Coy)
7. 03:27 PM - Nose and main gear pressures (Jon Blake)
8. 06:43 PM - Re: Oily Prop (727gs)
9. 08:33 PM - Re: Oily Prop (Roger Kemp)
10. 08:33 PM - Re: Oily Prop (Roger Kemp)
11. 08:38 PM - Re: Oily Prop (Roger Kemp)
12. 08:41 PM - Re: Valve Guide Cylinder Question (HS6A) (Roger Kemp)
13. 08:50 PM - Re: Valve Guide Cylinder Question (HS6A) (cjpilot710@aol.com)
14. 09:56 PM - Re: Valve Guide Cylinder Question (HS6A) (Walter Lannon)
Message 1
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My Stock CJ prop has been slinging a fine mist of oil from the blade seals, it
appears. The local Dramader duster guy does his own props and has offered to help.
Anyone have any advice? Are the seals available and easy? Anyone done this?
Prop operates normally in flight.
Thanks in advance,
Steve near Chicago
--------
Steve near Chicago
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=456190#456190
Message 2
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The MT propeller, from Germany, solves the oil-slinging problem.
On Fri, May 13, 2016 at 8:35 AM, 727gs <727gs@att.net> wrote:
>
> My Stock CJ prop has been slinging a fine mist of oil from the blade
> seals, it appears. The local Dramader duster guy does his own props and has
> offered to help. Anyone have any advice? Are the seals available and easy?
> Anyone done this? Prop operates normally in flight.
>
> Thanks in advance,
> Steve near Chicago
>
> --------
> Steve near Chicago
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=456190#456190
>
>
Message 3
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Good morning Steve -
Yup, Doug Sapp offers a set of new prop hub seals at a good price. Altho
I've not (yet) replaced a set, I'm told its not a difficult task to do.
There's a special tool that's required as well.
Justin
On Fri, May 13, 2016 at 7:35 AM, 727gs <727gs@att.net> wrote:
>
> My Stock CJ prop has been slinging a fine mist of oil from the blade
> seals, it appears. The local Dramader duster guy does his own props and has
> offered to help. Anyone have any advice? Are the seals available and easy?
> Anyone done this? Prop operates normally in flight.
>
> Thanks in advance,
> Steve near Chicago
>
> --------
> Steve near Chicago
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=456190#456190
>
>
Message 4
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Steve;
Not necessarily from the "blade" seals.
Take a very close look at where the oil is exiting at the blade root. If it
is coming from the 3 slots in the blade grip it has nothing to do with the
seals.
In this case the oil is coming directly from the hub. If it is a new or
freshly overhauled prop. you should expect to see oil here for a few hours.
Under centrifugal loading oil will separate from the grease and exit at this
location. That is reason #1 from the slots and is of no concern as it will
dry up.
Reason #2 (from the slots) is different. Oil is still coming directly from
the hub but the source is engine oil leaking from the pitch change INNER
seal (or a leaking transfer tube gasket) into the hub. Unlike OUTER seal
leakage this will not initially be externally evident.
If oil or grease leakage is evident around the blade grip rather than (or in
addition to) the slots the Blade Bearing Grease seals are leaking.
If in doubt remove the pitch change unit and check for oil in the hub.
There should be none. Oil could also leak into the hub from a loose
transfer tube or poor gasket.
Walt
-----Original Message-----
From: 727gs
Sent: Friday, May 13, 2016 8:35 AM
Subject: Yak-List: Oily Prop
My Stock CJ prop has been slinging a fine mist of oil from the blade seals,
it appears. The local Dramader duster guy does his own props and has offered
to help. Anyone have any advice? Are the seals available and easy? Anyone
done this? Prop operates normally in flight.
Thanks in advance,
Steve near Chicago
--------
Steve near Chicago
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=456190#456190
Message 5
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| Subject: | Valve Guide Cylinder Question (HS6A) |
Good afternoon,
on behalf of my AME (who has already made some enquiries to members on this
list) I have a question:
Number four cylinder was 50/80, exhaust valve leak suspected. When checking
the cylinder, the exhaust valve guide was turning. He suggested he didn't
think it was supposed to. Apparently he checked with George Coy and Walt
Lannon (thanks) who both think that if a new cylinder is needed, then a
M-14 cylinder will drop right in (apologies if I have this wrong). I cannot
confirm this with Doug or Jill - both away.
In short, why is the valve guide turning? can I replace the valve guide or
do I have to replace the cylinder? If the cylinder, will an M-14 one do?
Apparently, Doug had no HS6A ones available. The plane is in Canada so not
keen on shipping cylinders back and forth across the border unless I have
no choice.
Input gratefully appreciated as my AME has stalled.
Thanks,
Phil Nicholson
C-FEPN
Message 6
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| Subject: | Valve Guide Cylinder Question (HS6A) |
The cylinders have the same basic dimensions, but are not the same. As I
mentioned I have a few used cylinders here, but are very old. Perhaps
someone on the list can provide a good cylinder for a Housai.
George Coy
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Philip
Nicholson
Sent: Friday, May 13, 2016 3:16 PM
Subject: Yak-List: Valve Guide Cylinder Question (HS6A)
Good afternoon,
on behalf of my AME (who has already made some enquiries to members on
this list) I have a question:
Number four cylinder was 50/80, exhaust valve leak suspected. When
checking the cylinder, the exhaust valve guide was turning. He
suggested he didn't think it was supposed to. Apparently he checked with
George Coy and Walt Lannon (thanks) who both think that if a new
cylinder is needed, then a M-14 cylinder will drop right in (apologies
if I have this wrong). I cannot confirm this with Doug or Jill - both
away.
In short, why is the valve guide turning? can I replace the valve guide
or do I have to replace the cylinder? If the cylinder, will an M-14 one
do? Apparently, Doug had no HS6A ones available. The plane is in Canada
so not keen on shipping cylinders back and forth across the border
unless I have no choice.
Input gratefully appreciated as my AME has stalled.
Thanks,
Phil Nicholson
C-FEPN
Message 7
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| Subject: | Nose and main gear pressures |
RG9lcyBhbnlvbmUgcmVjYWxsIHRoZSBwcm9wZXIgcHJlc3N1cmUgdGhlIG1haW4gYW5kIG5vc2Ug
c3RydXRzIHNob3VsZCBiZSBzZXJ2aWNlZCB0byBpbiBhIENKPyBKQgoKU2VudCBmcm9tIG15IFZl
cml6b24gV2lyZWxlc3MgNEcgTFRFIERST0lE
Message 8
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Thanks guys.
I'll wipe it down and run it this weekend and pay more attention to where it's
coming from.
I appreciate the help and Walt, the exhaust fit fabulously.
Steve
--------
Steve near Chicago
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=456225#456225
Message 9
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Call Doug Sapp. He should have them
Doc
Sent from my iPad
> On May 13, 2016, at 10:35 AM, 727gs <727gs@att.net> wrote:
>
>
> My Stock CJ prop has been slinging a fine mist of oil from the blade seals, it
appears. The local Dramader duster guy does his own props and has offered to
help. Anyone have any advice? Are the seals available and easy? Anyone done this?
Prop operates normally in flight.
>
> Thanks in advance,
> Steve near Chicago
>
> --------
> Steve near Chicago
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=456190#456190
>
>
>
>
>
>
>
>
>
>
Message 10
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New seals are a hell of a lot cheaper.
Doc
Sent from my iPad
> On May 13, 2016, at 10:45 AM, John B <jbsoar@gmail.com> wrote:
>
> The MT propeller, from Germany, solves the oil-slinging problem.
>
>
>> On Fri, May 13, 2016 at 8:35 AM, 727gs <727gs@att.net> wrote:
>>
>> My Stock CJ prop has been slinging a fine mist of oil from the blade seal
s, it appears. The local Dramader duster guy does his own props and has offe
red to help. Anyone have any advice? Are the seals available and easy? Anyon
e done this? Prop operates normally in flight.
>>
>> Thanks in advance,
>> Steve near Chicago
>>
>> --------
>> Steve near Chicago
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=456190#456190
>>
>>
>>
>>
>>
>>
>>
>> ==========
>> List" rel="noreferrer" target="_blank">http://www.matronics.com/Navig
ator?Yak-List
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>> eferrer" target="_blank">http://forums.matronics.com
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>
Message 11
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Excellent Walt
Doc
Sent from my iPad
> On May 13, 2016, at 12:02 PM, Walter Lannon <wlannon@shaw.ca> wrote:
>
>
> Steve;
>
> Not necessarily from the "blade" seals.
>
> Take a very close look at where the oil is exiting at the blade root. If it
is coming from the 3 slots in the blade grip it has nothing to do with the seals.
> In this case the oil is coming directly from the hub. If it is a new or freshly
overhauled prop. you should expect to see oil here for a few hours. Under
centrifugal loading oil will separate from the grease and exit at this location.
That is reason #1 from the slots and is of no concern as it will dry up.
>
> Reason #2 (from the slots) is different. Oil is still coming directly from
the hub but the source is engine oil leaking from the pitch change INNER seal
(or a leaking transfer tube gasket) into the hub. Unlike OUTER seal leakage this
will not initially be externally evident.
>
> If oil or grease leakage is evident around the blade grip rather than (or in
addition to) the slots the Blade Bearing Grease seals are leaking.
>
> If in doubt remove the pitch change unit and check for oil in the hub. There
should be none. Oil could also leak into the hub from a loose transfer tube
or poor gasket.
>
> Walt
>
>
> -----Original Message----- From: 727gs
> Sent: Friday, May 13, 2016 8:35 AM
> To: yak-list@matronics.com
> Subject: Yak-List: Oily Prop
>
>
> My Stock CJ prop has been slinging a fine mist of oil from the blade seals, it
appears. The local Dramader duster guy does his own props and has offered to
help. Anyone have any advice? Are the seals available and easy? Anyone done this?
Prop operates normally in flight.
>
> Thanks in advance,
> Steve near Chicago
>
> --------
> Steve near Chicago
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=456190#456190
>
>
>
>
>
>
>
>
>
>
>
>
>
Message 12
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| Subject: | Re: Valve Guide Cylinder Question (HS6A) |
Agree with George. They are not interchangeable.
Doc
Sent from my iPad
> On May 13, 2016, at 3:02 PM, George S. Coy <george.coy@gmail.com> wrote:
>
> The cylinders have the same basic dimensions, but are not the same. As I m
entioned I have a few used cylinders here, but are very old. Perhaps someone
on the list can provide a good cylinder for a Housai.
> George Coy
>
> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@ma
tronics.com] On Behalf Of Philip Nicholson
> Sent: Friday, May 13, 2016 3:16 PM
> To: Yak-List; Colin McGeachy
> Subject: Yak-List: Valve Guide Cylinder Question (HS6A)
>
> Good afternoon,
> on behalf of my AME (who has already made some enquiries to members on thi
s list) I have a question:
>
> Number four cylinder was 50/80, exhaust valve leak suspected. When checkin
g the cylinder, the exhaust valve guide was turning. He suggested he didn't
think it was supposed to. Apparently he checked with George Coy and Walt La
nnon (thanks) who both think that if a new cylinder is needed, then a M-14 c
ylinder will drop right in (apologies if I have this wrong). I cannot confir
m this with Doug or Jill - both away.
>
> In short, why is the valve guide turning? can I replace the valve guide or
do I have to replace the cylinder? If the cylinder, will an M-14 one do? A
pparently, Doug had no HS6A ones available. The plane is in Canada so not k
een on shipping cylinders back and forth across the border unless I have no c
hoice.
>
> Input gratefully appreciated as my AME has stalled.
>
> Thanks,
> Phil Nicholson
> C-FEPN
>
Message 13
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| Subject: | Re: Valve Guide Cylinder Question (HS6A) |
Give Allen Barrett at Barrett Precision Engines a call. He may made be
able to fix that cylinder for you. His number is 918-835-1089 and you can see
the web site at _www.bpaengines.com_ (http://www.bpaengines.com) .
He may be able to machine a valve guide. Very down to earth guy and
really knows engines.
Jim "Pappy" Goolsby
In a message dated 5/13/2016 3:17:36 P.M. Eastern Daylight Time,
pednicholson@gmail.com writes:
Good afternoon,
on behalf of my AME (who has already made some enquiries to members on
this list) I have a question:
Number four cylinder was 50/80, exhaust valve leak suspected. When
checking the cylinder, the exhaust valve guide was turning. He suggested he
didn't think it was supposed to. Apparently he checked with George Coy and Walt
Lannon (thanks) who both think that if a new cylinder is needed, then a
M-14 cylinder will drop right in (apologies if I have this wrong). I cannot
confirm this with Doug or Jill - both away.
In short, why is the valve guide turning? can I replace the valve guide or
do I have to replace the cylinder? If the cylinder, will an M-14 one do?
Apparently, Doug had no HS6A ones available. The plane is in Canada so not
keen on shipping cylinders back and forth across the border unless I have
no choice.
Input gratefully appreciated as my AME has stalled.
Thanks,
Phil Nicholson
C-FEPN
Message 14
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| Subject: | Re: Valve Guide Cylinder Question (HS6A) |
Phillip;
You definitely have this wrong. I did not suggest that an M14 cylinder
would be an acceptable alternate. I simply suggested that Jill, or
George Coy, may have access to a spare Huosai cylinder.
Walt
From: Philip Nicholson
Sent: Friday, May 13, 2016 12:16 PM
Subject: Yak-List: Valve Guide Cylinder Question (HS6A)
Good afternoon,
on behalf of my AME (who has already made some enquiries to members on
this list) I have a question:
Number four cylinder was 50/80, exhaust valve leak suspected. When
checking the cylinder, the exhaust valve guide was turning. He
suggested he didn't think it was supposed to. Apparently he checked with
George Coy and Walt Lannon (thanks) who both think that if a new
cylinder is needed, then a M-14 cylinder will drop right in (apologies
if I have this wrong). I cannot confirm this with Doug or Jill - both
away.
In short, why is the valve guide turning? can I replace the valve guide
or do I have to replace the cylinder? If the cylinder, will an M-14 one
do? Apparently, Doug had no HS6A ones available. The plane is in Canada
so not keen on shipping cylinders back and forth across the border
unless I have no choice.
Input gratefully appreciated as my AME has stalled.
Thanks,
Phil Nicholson
C-FEPN
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