Return-Path: Received: from sccrmhc11.comcast.net ([204.127.202.55] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTP id 1000746 for flyrotary@lancaironline.net; Mon, 13 Jun 2005 15:55:42 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.202.55; envelope-from=kenpowell@comcast.net Received: from 204.127.205.142 (sccrwbc66.asp.att.net[204.127.205.166]) by comcast.net (sccrmhc11) with SMTP id <2005061319545601100401lde>; Mon, 13 Jun 2005 19:54:56 +0000 Received: from [68.51.45.41] by 204.127.205.142; Mon, 13 Jun 2005 19:54:55 +0000 From: kenpowell@comcast.net To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Engine Not Starting Date: Mon, 13 Jun 2005 19:54:55 +0000 Message-Id: <061320051954.26182.42ADE48F0008299E00006646220702105304040A99019F020A05@comcast.net> X-Mailer: AT&T Message Center Version 1 (Dec 17 2004) X-Authenticated-Sender: a2VucG93ZWxsQGNvbWNhc3QubmV0 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_26182_1118692495_0" --NextPart_Webmail_9m3u9jl4l_26182_1118692495_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit I hate to admit it but I have ALOT of experience with this subject - can you say 2-stroke motorcycle in the early '70s. Here is what worked for me (in no particular order): 1. wash the plugs with spray brake cleaner (only worked for mildly fouled plugs) 2. wash the plugs with Easy Off oven cleaner ('borrowed' from my Mom's kitchen - I particularly liked this one) 3. heat the plugs with a propane torch to burn the deposits off; this had mixed results because I tended to overheat the plugs and destroyed them-worked good if done correctly) 4. bead blasting - quick and easy but scored the plug so they re-fouled' easily) Bet Bill Jepson knows some real neat tricks because of his years in the motorcycle industry? Ken Powell Bryant, Arkansas 501-847-4721 RV-4 -------------- Original message -------------- > > ----- Original Message ----- > From: "Rogers, Bob J." > To: "Rotary motors in aircraft" > Sent: Monday, June 13, 2005 9:53 AM > Subject: [FlyRotary] Engine Not Starting > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html > > > I believed in the past that this easy plug fouling was specific to my single > rotor. > While tuning the carb, I am using quite a bit of rich mixture condition. > Most of the time after a couple of restarts the game is over, and it doesn't > start again. Also shutting the engine off for the day after running in rich > condition results in not being able to restart it the next morning. > Taking the plugs out and cleaning them with wire brush and air is not doing > any good. The only way I found is beat blast the plug all the way down to > the base of the insulator. This works every time. > It is obviously carbon build up on the insulator. Why is it doing it every > time? is it specific for the rotary? what is done in the RX7 done to prevent > that from happening? > > Richard Sohn > N-2071U > Work on single rotor. > > > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html --NextPart_Webmail_9m3u9jl4l_26182_1118692495_0 Content-Type: text/html Content-Transfer-Encoding: 8bit

I hate to admit it but I have ALOT of experience with this subject - can you say 2-stroke motorcycle in the early '70s. Here is what worked for me (in no particular order):

1. wash the plugs with spray brake cleaner (only worked for mildly fouled plugs)

2. wash the plugs with Easy Off oven cleaner ('borrowed' from my Mom's kitchen - I particularly liked this one)

3. heat the plugs with a propane torch to burn the deposits off; this had mixed results because I tended to overheat the plugs and destroyed them-worked good if done correctly)

4. bead blasting - quick and easy but scored the plug so they re-fouled' easily)

Bet Bill Jepson knows some real neat tricks because of his years in the motorcycle industry?

Ken Powell
Bryant, Arkansas
501-847-4721
RV-4

-------------- Original message --------------

>
> ----- Original Message -----
> From: "Rogers, Bob J."
> To: "Rotary motors in aircraft"
> Sent: Monday, June 13, 2005 9:53 AM
> Subject: [FlyRotary] Engine Not Starting
> >> Homepage: http://www.flyrotary.com/
> >> Archive: http://lancaironline.net/lists/flyrotary/List.html
>
>
> I believed in the past that this easy plug fouling was specific to my single
> rotor.
> While tuning the carb, I am using quite a bit of rich mixture condition.
> Most of the time after a couple of restarts the game is over, and it doesn't
> start again. Also shutting the engine off for the day after running in rich
> condition results in not being able to restart it the next morning.
> Taking the plugs out and cleaning them with wire brush and air is not doing
> any good. The only way I found is beat blast the plug all the way down to
> the base of the insulator. This works every time.
> It is obviously carbon build up on the insulator. Why is it doing it every
> time? is it specific for the rotary? what is done in the RX7 done to prevent
> that from happening?
>
> Richard Sohn
> N-2071U
> Work on single rotor.
>
>
> >> Homepage: http://www.flyrotary.com/
> >> Archive: http://lancaironline.net/lists/flyrotary/List.html

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