Pietenpol-List: Model-A starting problem

An archive of the Matronics Pietenpol Listserve.
Locked
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Model-A starting problem

Post by matronics »

Original Posted By: Lawrence Williams
Subject: Pietenpol-List: Model-A starting problem> > Excuse me folks, a fellow lover of the blue has got a problem..> > Ive been trying to start my Model-A Pietenpol, which is stiff from fresh overhaul.Try as I might, I cant get even a puff or > pop out of it. Fuel, compression, timing and spark right? I can > guarantee fuel by pouring a small amount in the spark-plug hole > before propping (have also utilized starting fluid). Certainly has > compression (verified with a thumb over the spark-plug hole while > searching for top dead center). Timing is set at 28-degrees BTC > and if you lay a spark-plug on the head and give it a flip youll > see spark also when turning the rotor to line it up while > holding the mag in my hand I got one hell of a shock. I fear that > it may just be my weakling status keeping me from my reward but > Ive had others give a shot with no joy. Suspect that enough > speed can not be generated to obtain sufficient spark.> > The magneto Im utilizing is a Vertex mag that slips into the > distributor hole and it does not have an impulse coupler. There > isnt enough room between the firewall and engine to mount an > aircraft mag so the plans solution is out. I wonder if a stock > automobile (Model-A) ignition system (battery, coil, condenser and > such) might give a better slow speed spark at least to get it > running long enough to loosen the tight engine so I could go back > to the magneto.> > Any ideas, schemes or shots in the dark will be entertained. The > only reward will be a yet another YouTube video of a Model-A > Pietenpol running.> > Bill> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 846#365846> > > > > > > > > > ________________________________________________________________________________Date: Tue, 7 Feb 2012 20:50:05 -0800 (PST)
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Post by matronics »

Original Posted By: "Dortch, Steven D MAJ NG NG NGB"
Excuse me folks, a fellow lover of the blue has got a problem..Ive been trying to start my Model-A Pietenpol, which is stiff from fresh overhaul.Try as I might, I cant get even a puff or pop out of it. Fuel, compression,timing and spark right? I can guarantee fuel by pouring a small amount inthe spark-plug hole before propping (have also utilized starting fluid). Certainlyhas compression (verified with a thumb over the spark-plug hole while searchingfor top dead center). Timing is set at 28-degrees BTC and if you laya spark-plug on the head and give it a flip youll see spark also when turningthe rotor to line it up while holding the mag in my hand I got one hell of ashock. I fear that it may just be my weakling status keeping me from my rewardbut Ive had others give a shot with no joy. Suspect that enough speed cannot be generated to obtain sufficient spark.The magneto Im utilizing is a Vertex mag that slips into the distributor hole andit does not have an impulse coupler. There isnt enough room between the firewalland engine to mount an aircraft mag so the plans solution is out. I wonderif a stock automobile (Model-A) ignition system (battery, coil, condenserand such) might give a better slow speed spark at least to get it running longenough to loosen the tight engine so I could go back to the magneto.Any ideas, schemes or shots in the dark will be entertained. The only reward willbe a yet another YouTube video of a Model-A Pietenpol running.BillRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Re: Pietenpol-List: Model-A starting problem

Post by matronics »

Original Posted By: BYD
Subject: Re: Pietenpol-List: Model-A starting problemThis recent experience was with a 65 HP Continental but bear with me.I helped a buddy put brand new mags, harnesses, and plugs on his 65HP AeroncaChamp. We had plenty of help! We could not get the thing to fire at all. I spunthe prop till I dropped. Everyone "troubleshot the thing."We had compression, Spark, and fuel but not at the right time. Everyone had anopinion. (New mags are bad, the rebuilt carb is flooding everything, your Magswitch is bad, the plugs are bad....) Finally on a cold day when no one was around we took a good look at everything.Too many hands had ended up with several wires going to wrong plugs. (I knowthat we originally put them to the correct plugs, but don't know when they weremoved.) We pulled everything off and started from scratch by finding TDC. Thenturned the prop to 30 degrees before TDC. We set the mags up according to thedirections and and put them on. Ran the wires to all the right holes. Turnedthe prop while checking each cylinder for compression and when the plug sparked.Used the timing box and got both mags firing at exactly 30 degrees (thistook very little adjustment.) This whole process took about 1 hour. I pulled the prop through 4 blades, he yelled "contact", I answered "HOT!!" andit fired on the first blade. The plane flies strong and starts very easy. Morals of the story: Don't get too much help!, Don't overthink the problem! Don'tbe afraid to back up and redo anything you are not sure of. Hope this helps. Blue Skies,Steve D----- Original Message -----
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Re: Pietenpol-List: Model-A starting problem

Post by matronics »

Original Posted By: helspersew(at)aol.com
Double check plug wires..... #1 cylinder is now at the BACK of the engine.--------PAPA MIKERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Model-A starting problem
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Post by matronics »

Original Posted By: BYD
Bill,Mine was started from a fresh overhaul so that in itself is not a problem. I had the advantage of a Slick with the impulse, and never tried to start it without it. Aren't a lot of the older Ford Piets just using non-impulse mags? The only advise is the same as others. Start from scratch and check everything once again. Like Papa Mike said, make sure #1 is really #1, etc. Do you have a fuel primer? Just curious. It has GOT to be something basic.Dan HelsperPuryear, TN-----Original Message-----
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Re: Model-A starting problem

Post by matronics »

Original Posted By: "tools"
Clearly not fuel.Clearly not mag or spark if you can see AND got a good shock.I'm leaning towards timing also. I'd say slow down, back up and retime thatbaby and try again.Go slow, it can only few one of a very few things.Let us know what you find and when we can see that video of it running!Douwe________________________________________________________________________________Subject: Pietenpol-List: Re: Model-A starting problem
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Re: Pietenpol-List: Model-A starting problem

Post by matronics »

Original Posted By: Amsafetyc
Wow, you're mentioning all the right things. I rebuilt a little 4 cyl industrialengine on a bobcat not too long ago. While it started and ran, there was just"something" wrong. EVERYONE looked at it. I finally got a call from some guy via a bulletin board who figured it out by readinga post. After bucketloads of engine tune ups and wire replacements, Isomehow merely put the plug wires on backwards, because the distributor ran theopposite to what I'm used to.Not sure it would have started by hand, so it's just another little thing to check.Lastly, you say you can see a spark at the plug next to the hole. Can you tell(might want to wait till dark to check, if it's a nice blue/white spark, or ayellow/orange one? That will help answer your question about "enough" spark.If that is the case, yes, a battery powered ignition system will definitely giveyou better spark independent of rotation speed.I also like to diagnose these problems in at least semi dark. You sometimes findsparks going to ground where they're not supposed to be, thusly weakening whatis at the plug. Can see them easily in dark, but not at all in sunlight.ToolsRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Model-A starting problem
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Re: Pietenpol-List: Model-A starting problem

Post by matronics »

Original Posted By:
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Re: Pietenpol-List: Model-A starting problem

Post by matronics »

Original Posted By: r.r.hall(at)cox.net
Subject: Re: Pietenpol-List: Model-A starting problemHate to chime in with something that you probably know. To find TDC we turned the prop to get the piston beginning compression stroke onthe #1 cylinder. We installed a device that screws into the plug hole and intrudesto touch the piston when it comes up. when It touched the device. we setthe prop dial (a compass like device) on Zero. then you turn the prop the otherway until it touches again. Note the degrees on the dial. Divide that in half,take out the plug device and turn the prop to that degree. then zero theprop dial. That is TDC. Then turn it to the proper degrees before TDC (it was30 for us) . Easy enough. Blue Skies,Steve D----- Original Message -----
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Re: Pietenpol-List: Model-A starting problem

Post by matronics »

Original Posted By: BYD
I had some real problems when I first set mine up (with the Wico mag)...180 degreesoff....had spark etc....------Original Message------
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

RE: Pietenpol-List: Model-A starting problem

Post by matronics »

Original Posted By: r.r.hall(at)cox.net
Many airplanes in the 20s 30s and 40s did not have impulse mags. My dad had a Piper Super Cruiser that did not have impulse mags and=2C yes it was hard to start when hot.Doug DeverIn beautiful Stow OhioDate: Wed=2C 8 Feb 2012 11:47:00 -0500
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Re: Model-A starting problem

Post by matronics »

Original Posted By: Michael Perez
UPDATE: First, Id like to thank my fellow lovers of the blue for sharing theirexperiences related to my current struggle. Some I have experienced before postinglike using the spark-plug at the front of the plane (rear of the engine)as #1 the first time I was setting up the ignition to discovering plug wires3 and 4 swapped while checking the plugs to see if they were wet (I blame thatgoofy firing order). I dont believe to be 180-degrees off since the rotor ispointing at the #1 contact inside the cap when the engine is at top dead center.To be clear I use the following procedure to set the timing, which I haveused on regular aircraft engines and have reviewed with an IA that I trust:With the #1 plug removed (usually all of them and yes, #1 is the rear one on aPiet) I move the propeller with my thumb on the #1 spark-plug hole until I feelthe compression poofing on my thumb. Then with a popsicle stick (the pistonisnt directly under the spark-plug hole), I rock the propeller back and forthuntil I can feel that the piston is all the way up and between the connectingrod rocking on the crank I declare this position top dead center (TDC). Next,I turn the blade backwards watching a protractor with a pendulum pointing toa scale of degrees until it is indicating the amount of advance I want. Atthis point, I connect a buzz-box to the magneto and rotate the base until thelight and buzzer just come on where I set the locking screw to hold the base atthat position.I have come to learn that 30-degrees is the maximum advance to be shooting forand because my Vertex magneto has 12-degrees advance built in (between 700 and1000 engine RPMs) the maximum I should be setting my static advance is 18-degrees.I have received suggestions from that range clear down to 0-degrees tosee if I can at least get a pop. I also was looking at dyno reports from Synderswebsite and another source and noticed they listed 0-degrees static and 28-degreesmaximum advance as the normal setup for running their tests.I have been to the airport and set the static advance at 5-degrees following theprocedure above but the weather here is rainy, and my trusted assistant is offgoofing around in the snow up in the mountains. I dont wish to prop it aloneon a wet ramp so I wait for the situation to improve.Stand by, film at 11.BillRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Fri, 10 Feb 2012 18:11:30 -0800 (PST)
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Re: Pietenpol-List: Re: Fuel Tank and Engine

Post by matronics »

Original Posted By: "bradandlinda tds.net"
Hey, that looks like a nice design, I see that you have angled the bottom of thetank, is this to facilitate leg room for the passenger? This is kinda what Iwas thinking of doing(when I get that far). I do not think I want to put in atank in the wing center section at all. I do think that running the A-65 withthe long fuse and a tank configuration as thus will be a possible configurationwhilst keeping the cabanes vertical? Any words of wisdom on this?Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sat, 11 Feb 2012 10:39:45 -0600Subject: Re: Pietenpol-List: Re: Fuel Tank and Engine
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Post by matronics »

Original Posted By: Ben Charvet
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Re: Pietenpol-List: Re: Model-A starting problem

Post by matronics »

Original Posted By: Brett Phillips
Subject: Pietenpol-List: Re: Model-A starting problem> > Well, after a lot of propping, adjustments, rebuilding a new temporary ignitionsystem, more propping and more adjustments plus > following multiple paths of advise and opinions, it finally > happened. ANNA (name taken from serial number) finally barked. My > Model-A engine finally turned gasoline into noise and heat. Thank > you all for the ideas and suggestions.> > And, as promised;> > http://youtu.be/i8TkYaS0zmE> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 493#367493> > > > > > > > > > ________________________________________________________________________________Subject: Re: Pietenpol-List: Re: Model-A starting problem
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Re: Model-A starting problem

Post by matronics »

Original Posted By: "BYD"
Hey guys, so I'm about to order my first lot of wood, I'm going to start with thetail section. My question is, when I was looking for spruce at wicks and aircraftspruce, all I see is cap strips. is all the wood considered cap stripstock?Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Model-A starting problem
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Post by matronics »

Original Posted By: "Dortch, Steven D MAJ NG NG NGB"
Well, after a lot of propping, adjustments, rebuilding a new temporary ignitionsystem, more propping and more adjustments plus following multiple paths of adviseand opinions, it finally happened. ANNA (name taken from serial number)finally barked. My Model-A engine finally turned gasoline into noise and heat.Thank you all for the ideas and suggestions.And, as promised;http://youtu.be/i8TkYaS0zmERead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Re: Pietenpol-List: Re: Model-A starting problem

Post by matronics »

Original Posted By: BYD
Subject: Re: Pietenpol-List: Re: Model-A starting problemBEAUTIFUL!! That model A sounds great. Blue Skies,Steve D----- Original Message -----
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Re: Pietenpol-List: Re: Model-A starting problem

Post by matronics »

Original Posted By: helspersew(at)aol.com
Great video! It looks like a distributor was ultimately the weapon of choice.During the last part I could almost watch the engine limber up as you proppedand propped and propped away. Give it a couple hours of running and it will feelsloppy in comparison. Great job!Brett PhillipsStrasburg, VA________________________________________________________________________________Subject: Re: Pietenpol-List: Re: Model-A starting problem
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Post by matronics »

Original Posted By: BYD
Hi Bill,Terrific video. Needed a good laugh this morning. You got the right attitude. Never give up. Congratulations!!!!!Dan HelsperPuryear, TN-----Original Message-----
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Re: Model-A starting problem

Post by matronics »

Original Posted By: Jim Markle
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Re: Model-A starting problem

Post by matronics »

Original Posted By: Lawrence Williams
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Re: Pietenpol-List: Re: Model-A starting problem

Post by matronics »

Original Posted By: Rick Holland
Subject: Re: Pietenpol-List: Re: Model-A starting problem
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Re: Pietenpol-List: Re: Model-A starting problem

Post by matronics »

Original Posted By: Amsafetyc
I picked this up this morning on the Bearhawk list.This guy has a few engines available that would be perfect for a PietenpolAnd at decent prices:Forwarded message:________________As those of you who follow my posts probably know, I am being rather frugal inbuilding my Patrol. I had purchased an engine (in my price range) from a guy inTexas named Dan Martinez. He seemed like a great guy to deal with, and all themembers of the EAA chapter in San Antonio I checked with said he was a greatmechanic.So I asked Dan if he would send me a list of the other things he wascurrently selling. He send me a hand-written list (says he is notcomputer-savvy) so I typed it out for him.So if anyone in the group would be interested ... I placed the list onmy web serverhttp://poplar.us/DanMartinez.pdfBergy_________________________HansNX15KVWaller, TX________________________________________________________________________________Subject: Re: Pietenpol-List: Re: Model-A starting problem
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Post by matronics »

Original Posted By:> helspersew(at)aol.com
Great job loved the video the airplane stuff wasn't bad either. She sounds and looks great congratsJohnSent from my iPhoneOn Feb 29, 2012, at 9:43 AM, Rick Holland wrote:> Nice work Jim. Wish I could have been there as you were at my place to witness the first running of mine. However we crank-snapping corvair types prefer exercising our minds rather than our backs when it comes time to fly, we use a "relatively" modern invention called an electric starter (actually first patented in 1911).> > rick> > On Wed, Feb 29, 2012 at 5:37 AM, Jim Markle wrote:m>> > TOTALLY AGREE!!! That was SO much fun! Gave me goose bumps....> > > > -----Original Message-----
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Re: semi Piet related on color scheme and advertising

Post by matronics »

Original Posted By: "Kyle85"
Subject: Pietenpol-List: semi Piet related on color scheme and advertisingJust a thought, if I paint my Piet in the colors of my daughters company with advertising on the sides for free would than be considered a commercial use?_http://mikebrandolino.suite101.com/gelato-di-babbo---small-town-product-with-international-flair-a402254_ (http://mikebrandolino.suite101.com/gela ... ir-a402254) It looks like she's going to be moving her product line into the Chicago, Detroit and Midwest markets soon and maybe Florida. I think she needs a Piet to advertise for her________________________________________________________________________________Subject: Pietenpol-List: Re: semi Piet related on color scheme and advertising
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Re: Pietenpol-List: Re: semi Piet related on color scheme and advertising

Post by matronics »

Original Posted By: helspersew(at)aol.com
Wow. What a beautiful sound.You're going to love that airplane=2C and you will quickly forgiveher for all the pain she caused by wearing out all those starters=3Bo)Oscar ZunigaAir Camper NX41CC "Scout"Flying Squirrel N2069Z "Rocket"Medford=2C ORwebsite at http://www.flysquirrel.net ________________________________________________________________________________Subject: Re: Pietenpol-List: Re: semi Piet related on color scheme and advertising
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Post by matronics »

Original Posted By: jarheadpilot82
Dang it Terry, ....I have a multiple-year contract with Mr. Loensloe to display his ad, and BTW he is paying me huge sums to do it. Please nobody squeel to the feds on this. I can really use the money right about now.Dan HelsperPuryear, TN-----Original Message-----
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Model-A starting problem

Post by matronics »

Original Posted By: "BYD"
> Subject: Pietenpol-List: Re: Steel LG Lug Thickness>>> Sorry, Mark, I don't remember. It was thin gauge that was laying in thescrap bin. The control horn steel would probably be ok. It has to be thinenough to form around the lugs and the top of the gear. Maybe get a coupleof 12x12 pieces of various sizes to be on the safe side? You'll end upusing whatever you get for something.>> --------> Kevin "Axel" Purtee> NX899KP> Austin/Georgetown, TX>>> Read this topic online here:>> http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Model-A starting problem
Locked