surface gap ?? plugs??

[sloopy]

what are surface gap plugs for? when are they used, and why are they used

 

[ob]

Re: surface gap ?? plugs??

My manual says they are typically used in high performance applications to reduce incedence of fouling

 

[Hooty]

Re: surface gap ?? plugs??

They're also used in engines that operate a lot at low rpm's, like trolling. <br />Same deal, they don't foul as quick as regular gapped plugs.<br /><br />c/6<br /><br />Hooty

 

[Walker]

Re: surface gap ?? plugs??

I never had much luck with them in my 120 Johnson. 821 Champions work for me.

 

[Hooty]

Re: surface gap ?? plugs??

Roger that Walker but I don't troll much either.<br /><br />c/6<br /><br />Hooty

 

[sloopy]

Re: surface gap ?? plugs??

Hug me

<br /><br />Is there a way I can find out what type I need? I troll for 8 to ten hours at a time at idle so will they help ?

 

[sloopy]

Re: surface gap ?? plugs??

Hooty I'm sorry to ask this but are you a male or femail? I was just wondering becuase of the name

 

[Hooty]

Re: surface gap ?? plugs??

Hooty iz short for Hootyman.<br /><br />c/6<br /><br />Hooty

 

[ob]

Re: surface gap ?? plugs??

sloop my omc manual gives an optional fixed gap plug for sustained high speed operation but does'nt specify any for trolling.

 

[Hooty]

Re: surface gap ?? plugs??

Check with NAPA or some other auto supply and see if they can cross reference the plug you're using now to a surface gap plug.<br /><br />c/6<br /><br />Hooty

 

[sloopy]

Re: surface gap ?? plugs??

so what do I need for a 1997 6 horse power evinrude?<br />what do I need for a 1937 elto pal?

 

[BillP]

Re: surface gap ?? plugs??

I didn't keep the surface gaps either. Regular champions went back in and stayed after the first change. There was no difference in performance, slow or fast. The only difference was the surface gaps cost double or something. That was in 1980 on a 140 Johnson.<br /><br />Aren't the surface gaps meant to work only with high power CD ignitions?