The Ford Barn

Junknshit · 12-05-2011, 02:01 PM

While reading thru back posts I keep coming to there being too many threads in alum. heads, and what's left of my mind keeps saying I remember something about this from years back, so last night I dug thru several boxes of old counter displays and handouts that I have collected. I found a handout by The Electric Auto-Lite Company, Toledo, Ohio; Sarnia, Ont. Form 809-A. It is called an "Auto-Lite Plug Check Indeicator" and is a pocket tool. On the reverse it lists heat ranges and plug numbers and styles. P=10mm, A=14mm, B=18mm and T=7/8ths by 18 thread plugs. In the A style plug they list A-7, AN-7, and AL-7, and list the AL-7 as being an extended reach plug for aluminum heads.

I wonder if any such similar plugs are available today?

flatjack9 · 12-05-2011, 09:34 PM

Yes there are. Just need to check through the plug catalogs.

Junknshit · 12-06-2011, 05:25 AM

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Thanks flatjack9. I guess my mind still functions right sometimes.

12-05-2011, 02:01 PM	#1
Junknshit Banned Join Date: Oct 2011 Location: Wash. Posts: 233	Aluminum heads-too many threads While reading thru back posts I keep coming to there being too many threads in alum. heads, and what's left of my mind keeps saying I remember something about this from years back, so last night I dug thru several boxes of old counter displays and handouts that I have collected. I found a handout by The Electric Auto-Lite Company, Toledo, Ohio; Sarnia, Ont. Form 809-A. It is called an "Auto-Lite Plug Check Indeicator" and is a pocket tool. On the reverse it lists heat ranges and plug numbers and styles. P=10mm, A=14mm, B=18mm and T=7/8ths by 18 thread plugs. In the A style plug they list A-7, AN-7, and AL-7, and list the AL-7 as being an extended reach plug for aluminum heads. I wonder if any such similar plugs are available today?

12-05-2011, 09:34 PM	#2
flatjack9 Senior Member Join Date: May 2010 Location: Oshkosh, Wi Posts: 4,527	Re: Aluminum heads-too many threads Yes there are. Just need to check through the plug catalogs.

12-06-2011, 05:25 AM	#3
Junknshit Banned Join Date: Oct 2011 Location: Wash. Posts: 233	Re: Aluminum heads-too many threads Sponsored Links (Register now to hide all advertisements) Thanks flatjack9. I guess my mind still functions right sometimes.