----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----
Glen, 1. I heard that this was a problem too. But the fact is they are readily available. The unshielded plug Champion M41E is available from Aircraft Spruce where I got mine. 2. That's what the cups are for. They shield the complete plug and wire connection. 3. I got mine from Fresno Airparts Co. (great people and low cost as airparts go) 559-237-4863. 4. I have Slick mags and the harness can be gotten from many mag suppliers (Slick no. M1780). 5. Sorry, I and a friend (he has the lathe) did mine. It is a little hard to find the die as it is 5/8-24 thread. But they are out there from big tool suppliers. 6. Mine is a "Little Beautiful Doll" and she doesn't have bumps. Some have them and some don't (I'll leave it at that). -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Monday, February 28, 2005 8:38 AM To: McClure, Rich; [email protected] Subject: Re: [COUPERS-FLYIN] bumps on cowling Rich A couple of more questions, if you don't mind. 1. Are the shorter plugs readily available? 2. I heard that the shorter plugs may cause noise on the radios...is this true? 3. Are the "Ercoupe Cups" readily available? 4. Where can I buy the "newer type screw-on harness" 5. Is there a shop you can recommend to do the machine work? 6. Is it true that the planes with the bumps are girls? Thanks. Glen Davis CFII Grumman Tiger N70GD 1946 Ercoupe N3103H |-----| _________(*)_________ o o o ----- Original Message ----- From: "McClure, Rich" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; <[email protected]> Sent: Monday, February 28, 2005 8:37 AM Subject: RE: [COUPERS-FLYIN] bumps on cowling > > > Glen, > This has to do with the use of a shorter spark plug on top of the > cylinders. > The newer, typical plug and ignition harness wire attaches directly out of > the top of a longer spark plug (this can be used on the bottom plugs). But > if this is used on the top spark plugs, then the bumps are required to > provide clearance with the wire and the cowling. But with the use of > shorter > plugs and a Ercoupe cup, the newer type screw-on harness wires are > installed > at more of a right angle to the plug. This gives the needed clearance > without the cowling bumps. I've attached a couple of pictures showing the > original cup parts and the newer Ercoupe-cup parts that I used on my > plane. > The only negative to the cups is that they have to be machined to fit the > standard thread used on the ignition harness wire. They come with a larger > thread diameter. but this is easily done with a lathe and correct die. It > sure looks a lot cleaner without the cowling bumps. > Richard McClure (N94004) > > <<MVC-025S.JPG>> <<MVC-022S.JPG>> <<MVC-013S.JPG>> > > ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers/
<<attachment: winmail.dat>>
