Ford V-6 engine work

On Wed, 13 Aug 2003 01:58:48 GMT, "Ernesto Sanchez"
wrote:

Do you have any photos yet?
Ernesto
http://home1.gte.net/res0391z/index.html


There are a few photos in the Christavia Yahoo group. I have a few I
took of cog and flywheel I'll upload today if I can find the time.

Corky Scott

"Corky Scott" wrote in message
...
On 13 Aug 2003 07:38:50 -0400, Gregg Germain
wrote:

Hey Croky,

What airplane is this for?


--


--- Gregg
"Improvise, adapt, overcome."

Smithsonian Center for Astrophysics
Phone: (617) 496-1558


A Christavia Mk4. It's a largish four place high wing monoplane with
STOL

Ahhhh. Swope Farm and Mile Hi Fields beckon.

I'm envious, Corky.




performance. Empty weight is 1350 and gross wt is 2150.

Corky Scott

Corky Scott wrote:
: On 13 Aug 2003 07:38:50 -0400, Gregg Germain
: wrote:

:Hey Croky,
:
: What airplane is this for?
:
:
:--
:
:
:--- Gregg
: "Improvise, adapt, overcome."

:Smithsonian Center for Astrophysics
:Phone: (617) 496-1558
:

: A Christavia Mk4. It's a largish four place high wing monoplane with
: STOL performance. Empty weight is 1350 and gross wt is 2150.

: Corky Scott

Corky,

Did a goggle search, saw your web page. Very cool. Good luck with
it.



--- Gregg
"Improvise, adapt, overcome."

Smithsonian Center for Astrophysics
Phone: (617) 496-1558

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Barnyard BOb -- wrote:

600 ten thousandths
60 thousandths
6 hundredths
.6 tenths....

All the same thing.

When talking about inches, all that stuff you wrote equals 60 mils
which is a heck of a lot easier to say than "60 thousandths of an
inch". Heck, I can't even say the word "thousandths" with any degree
of clarity unless I say it really really slow. There ought to be a
law against such words.

For the record, one mil = 1/1000 of an inch.

And yes, Bob, you are surely correct about the 30 mil overbore and 6
mil piston/cylinder clearance.

David O -- http://www.AirplaneZone.com
++++++++++++++++++++++++++++

Indubitably, Dave, indubitably. 8-)


Barnyard BOb -- Peter Piper picked a peck of pickled peppers

Larry Smith wrote:

----snip----

Ahhhh. Swope Farm and Mile Hi Fields beckon.

I'm envious, Corky.


You're a better man than me. I took a look at the pictures and prose earlier in
the thread. Swope farm didn't look too bad since the 134 foot elevation change
is worth a little more than 50 knots, by my calculation, that the engine need
not contribute; although you'd better be ready when you're ready. On the other
hand, I'd rather just watch mile high from a safe distance; or better yet, not
in "real time".

Peter

Though "thousandths" is the correct word most of the machinists I've
worked with just say "thousands"

--
Bruce A. Frank



David O wrote:

Barnyard BOb -- wrote:

600 ten thousandths
60 thousandths
6 hundredths
.6 tenths....

All the same thing.

When talking about inches, all that stuff you wrote equals 60 mils
which is a heck of a lot easier to say than "60 thousandths of an
inch". Heck, I can't even say the word "thousandths" with any degree
of clarity unless I say it really really slow. There ought to be a
law against such words.

For the record, one mil = 1/1000 of an inch.

And yes, Bob, you are surely correct about the 30 mil overbore and 6
mil piston/cylinder clearance.

David O -- http://www.AirplaneZone.com

"Bruce A. Frank" wrote in message
...
Though "thousandths" is the correct word most of the machinists
I've
worked with just say "thousands"


Oddly I always said, "thow" ie. "30 thow"
--

..
--
Cheers,
Jonathan Lowe
modelflyer at antispam dot net

Antispam trap in place


--
Bruce A. Frank



David O wrote:

Barnyard BOb -- wrote:

600 ten thousandths
60 thousandths
6 hundredths
.6 tenths....

All the same thing.

When talking about inches, all that stuff you wrote equals 60
mils
which is a heck of a lot easier to say than "60 thousandths of an
inch". Heck, I can't even say the word "thousandths" with any
degree
of clarity unless I say it really really slow. There ought to be
a
law against such words.

For the record, one mil = 1/1000 of an inch.

And yes, Bob, you are surely correct about the 30 mil overbore
and 6
mil piston/cylinder clearance.

David O -- http://www.AirplaneZone.com

On Wed, 13 Aug 2003 05:33:03 -0500, Barnyard BOb --
wrote:


Could you possibly mean...

.028
.030

28 thousandths
30 thousandths


Barnyard BOb --


My apologies. I don't use a micrometer much and every time I do I
have to study and learn it over and over again.

I sympathize, since I did use a micrometer for many years. g
[Got that... big mouth Latchless Larry?]

I meant to say that the cylinders were rough bored to twenty eight
thousandths over, then honed to the final size which incorporated the
sixty thousandths piston clearance.

If that's .060" clearance, then that's what I meant to say.

To throw you another curve....
I'm thinking your piston clearance is really .006 or 6 thousandths.
Clare or Bruce may be chiming in on this one. g

Standard "rule of thumb" for engines you had no specs for was 2 thou
plus 2 thou per inch diameter. Which would be roughly 8 thou.
Camground pistons were usually fitted a bit tighter. Like about half
or less.
Factory spec for a 3.8 is 0.0014 to 0.0028

On Tue, 19 Aug 2003 07:23:47 -0400, David O
wrote:

"Bruce A. Frank" wrote:

Though "thousandths" is the correct word most of the machinists I've
worked with just say "thousands"

Yes, in the right context "thousands" sounds like a lazy "thousandths"
anyway. Given my trouble saying "thousandths", I'll have to remember
that.

David O -- http://www.AirplaneZone.com

Every machinist or mechanic I've ever met just calls them Thous.

clare @ snyder.on .ca wrote:

Yes, in the right context "thousands" sounds like a lazy "thousandths"
anyway. Given my trouble saying "thousandths", I'll have to remember
that.

David O -- http://www.AirplaneZone.com


Every machinist or mechanic I've ever met just calls them Thous.

I've heard both used in my somewhat limited exposure to that world.
Now if I started saying "thousandths" or "thous" instead of "mils" in
my professional work (EE, pc board fab, etc), I'd get strange looks
indeed. "Mil" has "of an inch" in the definition which pleases my
engineering sensibilities.

Along similar lines, before "Hertz" was adopted by SI in the late
'60s, most folks just said "kilocycles" instead of "kilocycles per
second". Hertz has "per second" as part of its definition which also
pleases my engineering sensibilities. A lot of hams, however, were
miffed when their beloved "kay cee" was supplanted through a tribute
to a dead German physicist.

David O -- http://www.AirplaneZone.com