If they are just using a regular spark plug boot that sounds like the problem. I really liked the aluminum shrouds that go over the entire insulator that Steve sells.
Steve recomends .014 or .016 or something like that. A magneto really can't fire very well on a big gap. I am kind of surprised your engine kept running good. Brian Kraut Engineering Alternatives, Inc. www.engalt.com -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of Kenneth L Wiltrout Sent: Sunday, June 27, 2004 9:15 PM To: kr...@mylist.net Subject: Re: KR> Ignition noise Hi Brian, This e-mail just showed up------------Revmaster sent me Autolite 425 plugs which are resistor plugs according to their web site. Revmaster does use a shielded harness. After telling Joe at revmaster about the radio noise he said what did u gap the plugs at? I said since there were no instructions I left them at .030 as that's what they were all set at, then he said that's my problem, re gap to .016, so I did and believe it or not the noise went away on the ground but in flight it came back about 75% of what it was. So I called an avionics shop and was told to get some shielding ( the tubular variety that is woven like Chinese finger cuff's ) and slide it over the last couple of inches of wire prior to the plug boot and down over the boot as well, and for good measure solder a wire to the shielding and ground that to the block as well. So I'm waiting for the shielding now. I may call Steve at Great Plains, I completely forgot about him----------------------------Thanks! On Sat, 12 Jun 2004 14:56:42 -0400 "Brian Kraut" <brian.kr...@engalt.com> writes: > Are you using resistor plugs? > > Great Plains recommeds only Bosch W8AC plugs. I used them and had > no noise. > > I am not familiar with the Revemaster conversion. Great Plains uses > an > aluminum machined piece that completely covers the plug. The > standard > shielded ignition wires connect to this piece and keep the plug > completely > shielded. Steve recommends connectiong a wire from the aluminum > piece to > the engine if there is noise, but I never had to do that. > > Does the Revmaster use a shielded harness? Are you using it off of > a mag? > > Brian Kraut > Engineering Alternatives, Inc. > www.engalt.com > > -----Original Message----- > From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On > Behalf Of Kenneth L Wiltrout > Sent: Saturday, June 12, 2004 2:23 PM > To: kr...@mylist.net > Subject: KR> Ignition noise > > > Due to the high cost of aviation plugs I decided to buy the > Revmaster > conversion kit to auto plugs---------------------that being said > the > engine runs excellant but now I have unbearable ignition noise. If I > had > to do it over I never would have done this. Any of you radio techs > out > the know of a solution?? If I have too I will re install a new > aviation > harness and plugs. ( but I'd rather not $$$ ) THANKS!! > > ________________________________________________________________ > The best thing to hit the Internet in years - Juno SpeedBand! > Surf the Web up to FIVE TIMES FASTER! > Only $14.95/ month - visit www.juno.com to sign up today! > > _______________________________________ > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > > > _______________________________________ > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > ________________________________________________________________ The best thing to hit the Internet in years - Juno SpeedBand! Surf the Web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today! _______________________________________ to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
