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Old 12-11-2017, 10:37 AM
6 Gun 6 Gun is offline
Join Date: Jun 2005
Posts: 846
Cool Plugs

I'm experimenting and so far temp range looks great and running on bottom with no fowling.Who knows how much more stress is being put on the coil and how much sooner it will fail changing the plugs every 50 hours right now that may make up the difference than running a aircraft plug 500hrs?
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Old 12-11-2017, 10:42 AM
vic syracuse vic syracuse is offline
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Join Date: May 2005
Location: Locust Grove, GA
Posts: 2,385

Originally Posted by 6 Gun View Post
I have ran NGK auto plugs for last 100 hours on one of my slick mags gapped at out of the box .025 has worked very well and cost $2.30 each don't know how to post pics but if anyone wants to know how I converted wire to auto send me a PM.
I don't think this setup will be reliable in the long run. The gap is a little large for a magneto, but more importantly the resistance of auto plugs is usually over 5K. That's hard on the magneto components, especially the points.

Vic Syracuse

Built RV-4, RV-6, 2-RV-10's, RV-7A, RV-8, Prescott Pusher, Kitfox Model II, Kitfox Speedster, Kitfox 7 Super Sport, Just Superstol, DAR, A&P/IA, EAA Tech Counselor/Flight Advisor, CFII-ASMEL/ASES
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Old 12-11-2017, 02:26 PM
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chrispratt chrispratt is offline
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Join Date: Oct 2005
Posts: 657

Originally Posted by az_gila View Post
That sort of fouling is good reason to change to the REM37BY plugs with extended tips -

Should be good and approved in all of our engines, but you can check here -
Thanks Gill. I'll consider this on my next change.

Chris Pratt (2019 VAF DUES PAID)
RV-8 Flying, 775+hours
Lycoming O-360-A1A, Hartzell CS
52F (Aero Valley Airport, TX)
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