polar gap plugs

[dzorde at aesprodata.com.au]

     My 2 cents worth.  The plugs used in Alfa boxer motors are standard 
     ring plugs, 1 center electrode and 4 ground electrodes.  They are made 
     by Golden Lodge (hope it is spelled correctly), I think the Alfa 33 
     uses a 25HLY, but don't ask what the temp is like.
     
     Dan        dzorde at aesprodata.com.au


______________________________ Reply Separator _________________________________
Subject: Re: polar gap plugs
Author:  diy_efi at coulomb.eng.ohio-state.edu at INTERNET
Date:    4/17/96 8:58 AM


> >engines at Autolite they can't even be made to pre-ignite.   They 
> >would also foul out pretty quickly after a few cold starts in
> >a street motor.
> 
> Not necessarily . . . they were original equipment in Alfa Romeo 4 cylinders 
> when the cars were still imported.  Maybe the Autolite plugs were colder than 
> the Lodge used in the Alfa.
     
Possibly, but I'd be interested to know exactly what plugs were OEM for 
those engines, to see exactly how cold they are.  I don't think they 
used a standard surface gap, but I could be wrong.  Also, the alfa's may 
have leaner starts not so hard on the plug..
     
     
Steve