Anyone run 14mm plugs with adapters in a 0540?

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THESWAMPFOX
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Anyone run 14mm plugs with adapters in a 0540?

Post by THESWAMPFOX » Tue Dec 20, 2016 3:48 pm

What plug do you use?
I have the deep plug pockets and was wanting to run a longer 14mm plug that is in the same heat range.

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John Fenner
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Re: Anyone run 14mm plugs with adapters in a 0540?

Post by John Fenner » Wed Dec 21, 2016 9:53 am

I took long reach aircraft plugs and cut them down, drilled them and tapped the bore to 14 mm then faced off to the seating area, loctite them in and go, did same on short reach as well.
I never finish anyth,,,.

GMAC 76
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Re: Anyone run 14mm plugs with adapters in a 0540?

Post by GMAC 76 » Wed Dec 21, 2016 10:34 am

I have a couple a friends that have installed the adapters and run the long reach 14mm automotive NGK plugs in their experimental planes...I believe aircraft spruce has a application guide for heat range selection

mwood7800
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Re: Anyone run 14mm plugs with adapters in a 0540?

Post by mwood7800 » Sat Dec 24, 2016 10:32 am

Plugs are so cheap and last till they finally start to rust. What would the advantage be for a peanut plug

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Re: Anyone run 14mm plugs with adapters in a 0540?

Post by GMAC 76 » Sat Dec 24, 2016 1:21 pm

mwood7800 wrote:Plugs are so cheap and last till they finally start to rust. What would the advantage be for a peanut plug
from what my friends were telling me there are no long reach 18mm automotive plugs available....so by installing the adapters for 14mm they can use a long reach 14mm automotive plug which puts the spark farther into the combustion chamber where it belongs plus there are more heat ranges available....

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