Today's Message Index:
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1. 05:49 AM - Re: A engine out (bender)
2. 06:55 AM - Re: A engine out (tools)
3. 10:14 AM - Wicks notice: Spruce Spar Lumber (Cuy, Michael D. (GRC-RXD0)[Vantage Partners, LLC])
4. 11:28 AM - Continental Conn Rod Bolts (tkreiner)
5. 03:39 PM - Re: A engine out (Michael Weston)
6. 05:56 PM - Re: A engine out (Pietflyer1977)
7. 05:59 PM - Alliance Ohio Fly-in (Pietflyer1977)
8. 06:17 PM - Re: Wings ready for primer and paint (Ken Bickers)
9. 08:29 PM - Re: Alliance Ohio Fly-in (Don Emch)
Message 1
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Subject: | Re: A engine out |
The metal built up on the ring is from the transfer to the cylinder wall.. its
not bad... a hone will take it out.. melted aluminum scraped off the wall by the
ring... most of the "melting" is low on the skirt.. I'm sure its not a mixture
issue.. the top of the piston is fine along with the head and valves.. plugs
all look good.
this is a service bulletin from ford about oil pumps
http://www.oldcarmanualproject.com/manuals/Ford/1932/pages/p_%2067_jpg.htm
Jeff
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Subject: | Re: A engine out |
I was thinking a lot about oil pressure too, but was thinking about my tractors
that do that a lot as well... but then... air plane usage means you're using
all the horsepower available, all the time (unlike my tractor in "retirement"
mowing mode). The weakest point is going to go first, and that must have been
that cylinder.
Water cooled engines run less piston/cylinder clearance than air cooled, it must've
just got hot enough to interfere. You mentioned it wasn't getting quite
up to rpm prior to the failure, must've been the start of the event.
Happy to hear you can merely hone the cylinder to get it back to good. What kind
of cylinder hone do you use, a parallel rack and pinon stone, exanding parallel
stone or ball? I'd recommend the first, which will enlarge the cylinder
more, but maintain perfect round. The increased clearance won't hurt a bit.
Most manuals don't recommend reboring until your in excess of 0.008 clearance
if the cylinder is within taper and out of round specs (which are FAR less).
I'm thinking more might be better running these in airplanes.
Probably do need more oil pressure, especially if Ford recommended it for cars
back then. Water temp wouldn't likely have showed the problem very obviously.
Glad to see you found a likely smoking gun.
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Subject: | Wicks notice: Spruce Spar Lumber |
Just got this from Wicks. Of possible interest.
One year I ordered my spar stock and to save truck shipping costs Wicks del
ivered my spars to OSHKOSH
and I took them home atop my vehicle! THAT is customer service!
Mike C.
[cid:image001.png@01CE7D6F.593EC1D0]
[cid:image002.jpg@01CE7D6F.593EC1D0]<http://r20.rs6.net/tn.jsp?e=001wUo6e
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ka spruce lumber. We can provide spars up to 1" thick and 10" wide. Also ca
n provide up to 18' lengths. Place your order today. Lead time running only
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charges.
[cid:image003.jpg@01CE7D6F.593EC1D0]
Click to order
[cid:image004.png@01CE7D6F.593EC1D0]
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Wicks Aircraft Supply | 410 Pine Street | Highland | IL | 62249
Message 4
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Subject: | Continental Conn Rod Bolts |
If you have a small Continental, i.e., an A or C series engine, even an O-200,
this may be of interest to you. We're offering this to the Piet list members
first, EAA 302 members second (my EAA Chapter), and plan to list any remaining
items on eBay after OSH.
Continental P/N 530213 is the replacement Conn Rod Bolt for all of the above referenced
engines (also used on some engines that are quite a bit larger and generally
not used on a Piet.) My IA has recommended that because I don't know
the history of my engine... it would be very wise to replace these.
About half the bolts are packed in the paper/foil US procurement bags, and are
NOS items from Fed Surplus. New, unused, unwrapped. The other half are in single
bags, and/or unbagged, as we've opened a few to see what was inside.
After a net search, we've found that the sellers with the $12 item cost generally
don't have stock... and the most available parts are around $16 each.
Since the sealed bags hold 10 pieces, we're offering them for $100., which is only
$10. per bolt. The loose bolts will also be the same cost. I will be prepared
to bring these to Brodhead, to save on shipping costs, if you're interested.
Supply is limited, so if you need any, PM me ASAP.
--------
Tom Kreiner
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Subject: | Re: A engine out |
(preamble),I'm no expert but, i have seen a lot of blown-up engines. the piston
in your motor has damage consistent with preignition. the pinking,detonation,causes
the ring land to collapse. trapping the ring. typically,when you have a
bore that is too tight, the seizure is more symmetrical than yours.often these
are referred to as having seized "four square" as the damage starts at the sides
of the thrust faces. did the damage point at the exhaust valve in the block?
if not then you should check the rod for straitness . you should anyway, along
with whether or not the rod is centered and not side loaded anyway there
is a lot of inspection to undertake before reassembly. thats my two cents worth.just
glad you didnt get hurt!.
Message 6
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Subject: | Re: A engine out |
I had the exact same thing happen to my Model A. Looked just the same. The other
3 pistons were all in the beginning stages and were not far behind the first
one. After getting apart I found that the piston to wall clearance on a A is
only .002. And seamed way to tight to me. I had all my cylinders honed out to
.004 for more clearance due to running hard for a period of time. But after thinking
about it for a long time because I never really knew that caused it, it
was really bugging me. And I got to thinking one night that with all the trouble
I have on a daily basis with China made parts in my business I wonder it something
is up with the new China made pistons? ( that is all you can buy these
days ) Maybe the alloy is not right and these pistons are not expanding etc.
at the correct rates? My opinion is that something is up with the new pistons
( maybe not ) but I just don't know. Haven't ran mine again yet but if I was
you I would search high and low to find some NOS parts to rebuild your engine.
Hope you don't have any more trouble and would like to hear progress reports
of how it's going.
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http://forums.matronics.com/viewtopic.php?p=404430#404430
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Subject: | Alliance Ohio Fly-in |
Is anyone in the Midwest going to the Barber Airport fly-in this weekend in Alliance,
OH ? Anyone ever go? A good fly-in with a good turn out? Thanks
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http://forums.matronics.com/viewtopic.php?p=404431#404431
Message 8
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Subject: | Re: Wings ready for primer and paint |
Chuck, here is another picture of one of the wings while still in the
rotator stand. The vertical post of the rotator stand is one inch wide,
which offers a way to get a rough measure of the depth of the airfoil.
Also the under-camber of the Pietenpol airfoil is very apparent. Cheers,
Ken
On Tue, Jul 9, 2013 at 6:54 AM, C N Campbell <cncampbell@windstream.net>wrote:
> **
> Yeah. They do look good. They look awfully thin to me. Maybe it's just
> the angle the picture was made or the camera or maybe the fact that I built
> my ribs from the GN-1 rib profile. I think It's a bit thicker than
> the Pietenpol rib -- but not that much. The main difference is in the
> nose shape. I read somewhere that the thicker nose would give a little
> better climb. Don't know that to be true -- I haven't gotten to that stage
> yet. That Stewart System looks great. My only experience is with Ceconite
> and the Randolph dope process -- I will go with Stewart's glue and house
> paint -- if I ever get that far. Chuck
>
> ----- Original Message -----
> *From:* Rick <lmforge@earthlink.net>
> *To:* pietenpol-list@matronics.com
> *Sent:* Tuesday, July 09, 2013 8:00 AM
> *Subject:* Re: Pietenpol-List: Wings ready for primer and paint
>
> Lookin' good Ken!
>
> Rick Schreiber
>
> Sent from my iPad
>
> On Jul 9, 2013, at 12:10 AM, Ken Bickers <bickers.ken@gmail.com> wrote:
>
> Slowly but surely, step by step, inch by inch -- progress.
>
> Cheers, Ken
>
> <Wings ready for primer and paint.JPG>
>
> *
>
> href="http://www.matronics.com/Navigator?Pietenpol-List">http://www.matronics.com/Navigator?Pietenpol-List
> href="http://forums.matronics.com">http://forums.matronics.com
> href="http://www.matronics.com/contribution">http://www.matronics.com/c*
>
> *
>
> *
>
>
Message 9
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Subject: | Re: Alliance Ohio Fly-in |
I'll be there in my Piet. I think Shad is planning to go too. For sure I'll be
there Saturday. If I get very ambitious I'll take my son over Friday and we'll
camp out. A few years ago there were 6 Piets there! If the weather is good
there is usually a decent turnout. Good grassroots kind of flying! Keep in
mind Frank Pavliga keeps both of his beautiful Piets there too, the Rudolph
Piet and Sky Gypsy. Also he has the one and only flying Waco Nine there. It
is beautiful! If you can make it, come and look for the green Piet and introduce
yourself.
Don Emch
NX899DE
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http://forums.matronics.com/viewtopic.php?p=404439#404439
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