The Ford Barn

harry goebel · 12-09-2011, 05:57 AM

After chasing the noise for many years my radio is noise free. I completely forgot about Resistor type spark plugs. I am not a fan of Champion but these plugs seem to be OK, as far as performance, etc. They have the same heat range as the H-10. The number is 854-RH-10C. I have these in a 53 Mercury motor. Could not find any other manufacture that made resistor plug for my motor

richard crow · 12-09-2011, 07:51 AM

hi harry i remember years ago being told that h10 plugs were 1 thread longer then a reg plug don,t know if true or not is the threaded part of the new plug the same lenth as the h10 i don,t have one of each to match up

harry goebel · 12-09-2011, 08:40 AM

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That I do not know, but is supposed to be a direct replacement. I never had any problems removing the H-10 when I used them before. What brought the resistor plug to my attention again, was a 49 spare motor that I took out of my 48 coupe. It had Autolight resistor plugs in it. I also have a noise suppressor inline with the power wire, but still had noise till I installed the resistor plugs.

12-09-2011, 05:57 AM	#1
harry goebel Member Join Date: May 2010 Location: Miami, Fl Posts: 74	Noise in Radio After chasing the noise for many years my radio is noise free. I completely forgot about Resistor type spark plugs. I am not a fan of Champion but these plugs seem to be OK, as far as performance, etc. They have the same heat range as the H-10. The number is 854-RH-10C. I have these in a 53 Mercury motor. Could not find any other manufacture that made resistor plug for my motor

12-09-2011, 07:51 AM	#2
richard crow Senior Member Join Date: May 2010 Posts: 1,769	Re: Noise in Radio hi harry i remember years ago being told that h10 plugs were 1 thread longer then a reg plug don,t know if true or not is the threaded part of the new plug the same lenth as the h10 i don,t have one of each to match up

12-09-2011, 08:40 AM	#3
harry goebel Member Join Date: May 2010 Location: Miami, Fl Posts: 74	Re: Noise in Radio Sponsored Links (Register now to hide all advertisements) That I do not know, but is supposed to be a direct replacement. I never had any problems removing the H-10 when I used them before. What brought the resistor plug to my attention again, was a 49 spare motor that I took out of my 48 coupe. It had Autolight resistor plugs in it. I also have a noise suppressor inline with the power wire, but still had noise till I installed the resistor plugs.