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This year's annual



 
 
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  #11  
Old November 5th 06, 07:23 AM posted to rec.aviation.owning
Jack Allison[_1_]
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Posts: 188
Default This year's annual

Jon Kraus wrote:
Are you ****ed that you are only getting 65 PSI compression out of a 500
SMOH hour cylinder? I think that the high copper count doesn't
necesarily mean anything drastic... Our first annual in the Mooney was
almost 10 AMU's. Our second was 5 AMU's... Following this logic maybe
this year's will be 2.5 AMU's.... Yea right!! :-)

Heck, keep going Jon and your annuals will be essentially free! :-)


--
Jack Allison
PP-ASEL-Instrument Airplane

"To become a Jedi knight, you must master a single force. To become
a private pilot you must strive to master four of them"
- Rod Machado

(Remove the obvious from address to reply via e-mail)
  #12  
Old November 5th 06, 07:32 AM posted to rec.aviation.owning
RST Engineering
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Posts: 1,147
Default This year's annual

And I don't wanna...

I don't WANNA

I DON'T WANNA

hear you bitching in here how much your annual cost you until you can tell
me how much of the owner assisted annual you did. So far as I can see,
about 75-80% of what you've had "done" could have been done yourself.

Jim



"A Lieberma" wrote in message
. 18...
It's been a solid week, and I am still not flying in my Sundowner.....



  #13  
Old November 5th 06, 07:42 AM posted to rec.aviation.owning
Jack Allison[_1_]
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Posts: 188
Default This year's annual

RST Engineering wrote:
And I don't wanna...

I don't WANNA

I DON'T WANNA

hear you bitching in here how much your annual cost you until you can tell
me how much of the owner assisted annual you did. So far as I can see,
about 75-80% of what you've had "done" could have been done yourself.


So Jim, it's ok to bitch about the costs associated with one's annual
and required repairs if, in fact, one has done as much of the owner
assisted work as possible? Really? And all this time I thought it was
just bitching about annuals that got under your skin :-)

Oh yeah, one more thing...never, NEVER, *NEVER* say something like "My
annual cost me insert amazing AMU amount here". Always, ALWAYS,
*ALWAYS* separate out the inspection from the *required repairs*

--
Jack Allison
PP-ASEL-Instrument Airplane

"To become a Jedi knight, you must master a single force. To become
a private pilot you must strive to master four of them"
- Rod Machado

(Remove the obvious from address to reply via e-mail)
  #14  
Old November 5th 06, 02:32 PM posted to rec.aviation.owning
Jon Kraus
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Posts: 194
Default This year's annual

The sad thing is Jack, I'd be happy as hell if the annual were only 2.5
AMU's!! :-)

Jack Allison wrote:
Jon Kraus wrote:

Are you ****ed that you are only getting 65 PSI compression out of a
500 SMOH hour cylinder? I think that the high copper count doesn't
necesarily mean anything drastic... Our first annual in the Mooney was
almost 10 AMU's. Our second was 5 AMU's... Following this logic maybe
this year's will be 2.5 AMU's.... Yea right!! :-)

Heck, keep going Jon and your annuals will be essentially free! :-)


  #15  
Old November 5th 06, 03:09 PM posted to rec.aviation.owning
Jay Honeck
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Posts: 3,573
Default This year's annual

Oil analysis came back with high count of copper
#3 cylinder low on compressions


Do you taxi full rich?

We used to, which occasionally have us slightly low compression
readings on one or more cylinders in the hangar. The low cylinder
would move, as there was nothing really wrong. G We now lean
aggressively until we get to the runup area, and have never seen the
problem again.


Was this due to lead fouling?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

  #16  
Old November 5th 06, 04:01 PM posted to rec.aviation.owning
Newps
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Posts: 1,886
Default This year's annual



A Lieberma wrote:
Newps wrote in
:


If it's passing the rings then it's coming out the breather line, not
likely to get better. Everybody thinks the rings move during
operation, no way. You don't just happen to get unlucky and have the
rings lined up at the annual.



Since he got the compression up to 65, I am willing to give it a go.

With this in mind, how many hours down the road should I get him to run
another compression test?


10-15.



He did have me change the oil from 15 weight to 20 weight. Do you think
this will mask the problem any?


The oil has nothing to do with it.
  #17  
Old November 5th 06, 04:03 PM posted to rec.aviation.owning
RK Henry
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Posts: 83
Default This year's annual

On Sat, 04 Nov 2006 21:53:04 -0700, Newps wrote:

A Lieberma wrote:

I am not sure *exactly* what the A&P did (I am not mechanically
inclined). He told me it was complete "blow by" where it was passing the
rings. So, he did something to improve it, and I think he did something
what you described above with the rocker / valves but used a different
term.


If it's passing the rings then it's coming out the breather line, not
likely to get better. Everybody thinks the rings move during operation,
no way. You don't just happen to get unlucky and have the rings lined
up at the annual.


Actually, the rings do move during operation. It's when they quit
moving that we have problems. They don't rotate so much, but they do
squirm in and out as the piston moves up and down in the cylinder,
accommodating themselves to minor variations in the cylinder. I've
seen rings that were glued firmly into their grooves by deposits, not
moving at all, instead of springing free as they left the cylinder.
You don't get much sealing from rings in that condition, and once the
rings are stuck, that causes more damage.

The additive Allen mentioned could have been Avblend
(www.avblend.com). It's expensive, so you know it's FAA approved. Some
A&Ps use it. You can shop around for a slightly better price. Just fly
and maybe Avblend will loosen things up, in which case it's worth it.
Every once in a while, you get lucky.

  #18  
Old November 5th 06, 04:44 PM posted to rec.aviation.owning
A Lieberma
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Posts: 318
Default This year's annual

B A R R Y wrote in
:

Do you taxi full rich?


My field elevation is a whopping 325. I do taxi full rich, but do lean it
back a tad after the startup, just enough where I can hear the engine
smooth out. But by no means agressive.

No lead on the plugs, as Jay pointed out, so it's not due to plug fouling.
That sure would be the cheap fix!

Allen
  #19  
Old November 5th 06, 04:47 PM posted to rec.aviation.owning
A Lieberma
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Posts: 318
Default This year's annual

Newps wrote in
:

With this in mind, how many hours down the road should I get him to
run another compression test?


10-15.


Will do so. It's simple enough to do and I think good insurance.

He did have me change the oil from 15 weight to 20 weight. Do you
think this will mask the problem any?


The oil has nothing to do with it.


Ok, my simple non mechanically inclinded mind would have thought the
thicker the viscosity, then the harder the piston head would have to move
through the cylinder, giving it an illusion of a higher compression.

Allen

  #20  
Old November 5th 06, 04:55 PM posted to rec.aviation.owning
A Lieberma
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Posts: 318
Default This year's annual

"RST Engineering" wrote in
:

hear you bitching in here how much your annual cost you until you can
tell me how much of the owner assisted annual you did. So far as I
can see, about 75-80% of what you've had "done" could have been done
yourself.


Now, you got me curious, on all the problems listed, other then the oil
change, what exactly could I have legally done?

It's only a semi complaint about the cost, not so much for the workmanship,
but for what has to be worked on (low compression cylinder and corrosion).

Hell, in my opinion, A&P's are the doctors of my airplane engine. I work
on computers, not engines and airframes. I just want my airplane the
safest one on the ramp.

Also, the time it takes to do an annual amazes me, which would mean with my
work schedule the plane would be down longer then it be.

So, no you won't hear me complain about the basic annual cost, as I know my
A&P is of utmost integrity and quality. He's got enough bisiness passing
through his hands without having to jack up any prices or look for
problems.

Allen
 




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