Today's Message Index:
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1. 05:50 AM - Re: A-65 rebuild (Tommy Walker)
2. 05:55 AM - Re: Re: A-65 rebuild (Tommy Walker)
3. 07:38 AM - Re: Re: A-65 rebuild (Monty Barrett Sr)
4. 02:52 PM - Re: Re: A-65 rebuild (Deems Herring)
Message 1
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Subject: | Re: A-65 rebuild |
All, the crank was tested at a well known service shop in Tulsa. I trust their
findings, so I'm going to search for rebuilt or new crank. I've had prices
of 3100 and 2800 for new, so that's probably where I'm headed unless a good deal
on a used one pops up.
While the engine is going in an experimental, I don't want to trust anything to
chance as far as the engine goes. I just got bit on this used O200 purchase.
Thanks, there's a lot of good information on the posts here. You guys have lots
more information that I hope to access (one question at a time as suggested
by Randy :) ).
--------
Tommy Walker
N8701 - Anniston, AL
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=333152#333152
Message 2
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Subject: | Re: A-65 rebuild |
Deems, I'm the one building the O200. Dave is building an A65. Looking for
a crank.
Thanks,
Tommy
On Mon, Mar 7, 2011 at 8:16 PM, Deems Herring <dsleepy47@hotmail.com> wrote:
> Tommy, did I miss something? are you rebuilding an A-65 or an O-200?
>
> The problem with the original cylinders is the threads where the liner
> threads into the head. If you didn't know the steel liners are threaded at
> the top and they screw into the aluminum heads. the way the threads are made
> in the aluminum of the old style cylinders creates a stress concentration
> point and the cylinders crack at the end of the threads and it is possible
> for the head to separate from the rest of the cylinder. The newer style
> cylinders have a different thread design. This is different from the
> cracking in the area of the valves which all small continentals are
> susceptible too and which can be repaired but do not expect repaired heads
> to last as long as they did before the repair. I would not consider head
> repairs on cylinders you do not have a 100% accurate history on. Here are
> some pictures of the kind of cracks that lead to separation:
> http://www.sacskyranch.com/eng82.htm and here is another place with good
> information on the O-200.
>
> Deems
>
>
> > From: n4546v@mindspring.com
>
> > To: continental-list@matronics.com
> > Subject: Re: Continental-List: Re: A-65 rebuild
> > Date: Sun, 6 Mar 2011 19:53:52 -0800
>
> >
> n4546v@mindspring.com>
> >
> > Hello Tommy:
> >
> > Yes, I am on most of the ZA lists. We have corresponded before.
> >
> > The following contains many facts and a lot of my opinions. It is worth
> > exactly what you are paying for it.
> >
> > If you have a O-200 that is used in a certified aircraft, with original
> > Continental cylinders identified by casting numbers, they are subject to
> > cylinder head cracking.
>
> *
>
>
> *
>
>
Message 3
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Subject: | Re: A-65 rebuild |
Tommy,
No sir. I do not have one. Try Aircraft Specialties Services,
918-836-6872. Ask for Harold or Greg. IF they don't have one try
Aircraft Engine and Accessories in
Dallas. Sorry I don't have their phone number butit shouldn't be hard
to find.
Monty B.
-----Original Message-----
From: owner-continental-list-server@matronics.com
[mailto:owner-continental-list-server@matronics.com] On Behalf Of Tommy
Walker
Sent: Monday, March 07, 2011 4:32 PM
To: continental-list@matronics.com
Subject: Re: Continental-List: Re: A-65 rebuild
I would probably pay $2100.00 for a certified crank. I was
quoted 2814.00 for a new one today. That's not bad (relative term)
either.
You got one Monty?
Tommy
On Mon, Mar 7, 2011 at 2:47 PM, Monty Barrett Sr
<MONTY@bpaengines.com> wrote:
Sr" <MONTY@bpaengines.com>
Hey, Man,
A cracked flange is a serious defect. I wouldn't mess
with it 1/2
second. Fixing something in a race car shop is a whole
bunch different
than fixing something for an aircraft. 3 or 4 reasons
readily come to
mind. 1. Race car can just pull into the pits. 2. The
materials may
be and probably are different. The 0-200 crankshaft is
forged from AISI
4340, not the best welding material in the world. Too
much carbon in
the base metal and it's nitrided. 3. Do you have any
idea what happens
with control issues introduced when you sling a prop off
? 4. How much
is your safety worth ?
A serviceable tagged crankshaft from a reputable shop
would probably
cost $2100 or so.
Monty Barrett
Barrett Precision Engines, Inc.
Over 40 years in the aircraft engine business.
-----Original Message-----
From: owner-continental-list-server@matronics.com
[mailto:owner-continental-list-server@matronics.com] On
Behalf Of Randy
L. Thwing
Sent: Monday, March 07, 2011 1:11 PM
To: continental-list@matronics.com
Subject: Re: Continental-List: Re: A-65 rebuild
Thwing"
--> <n4546v@mindspring.com>
do not archive
Tommy:
I'm sure the news about it being "unrepairable" is for
Certified use.
For
experimental use, you could repair in any manner. Now,
I'm not saying
to be
slipshod and unsafe, but put out the word of what the
damage is and seek
help. Go to your local race engine shop for opinions.
There may be a
very
safe way to reapir this, just not FAA approved.
But that's one very good reason to go experimental, to
get OUT of the
certified business.
OK the flange is cracked, how's the rest of it? Journal
conditions,
straightness?
Good Luck,
Randy, Las Vegas
----- Original Message -----
From: "Tommy Walker" <twalker@cableone.net>
To: <continental-list@matronics.com>
Sent: Monday, March 07, 2011 9:26 AM
Subject: Continental-List: Re: A-65 rebuild
> <twalker@cableone.net>
>
> Randy, thanks for the valuable information.
>
> However, I just got hit with some bad news this
morning. The flange
> on my
> O200 crank is cracked and not repairable. So, it is
back to square
one
> for me. I hate to throw away my investment in this
engine, so I am
> searching for a replacement.
>
> Anyone have a lead on a crank?
>
> Thanks,
>
> Tommy Walker in Alabama
>
> --------
> Tommy Walker
> N8701 - Anniston, AL
>
>
>
>
> Read this topic online here:
>
>
http://forums.matronics.com/viewtopic.php?p=333063#333063
>
>
>
>
>
>
>
>
>
>
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Message 4
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Subject: | Re: A-65 rebuild |
Sorry Tommy I guess I got lost with the subject line.
Try here: http://www.barnstormers.com/index.php and do a couple of searches
for Continental or O-200=2C Tom Romanchik should have some ads there. All
I know about him is that I have purchased a few O-200 parts from him and th
ey have been as described and fairly priced=2C not cheap. YMMV
Good hunting.
Deems
Subject: Re: Continental-List: Re: A-65 rebuild
From: twalker@cableone.net
Deems=2C I'm the one building the O200. Dave is building an A65. Looking
for a crank.
Thanks=2C
Tommy
On Mon=2C Mar 7=2C 2011 at 8:16 PM=2C Deems Herring <dsleepy47@hotmail.com>
wrote:
Tommy=2C did I miss something? are you rebuilding an A-65 or an O-200?
The problem with the original cylinders
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