[Healeys] Spark Plugs

Bob Spidell bspidell at comcast.net
Wed Jan 27 09:00:26 MST 2021


Not with Healey plugs but, as an aside, Ford had a massive problem a few 
years ago (I should say, some Ford owners, namely those with 4.6L 
'Modular' engines, had a problem). These are SOHC engines, and their 
plugs were very long and skinny, and buried deep in the heads. The gap 
between the chamber end of the plug and the head was very narrow, and 
prone to 'carboning-up;' the problem was the plugs were made in two 
pieces and, when someone tried to remove the plugs--usually at 100K 
miles or so--the plug would pull apart, leaving the bottom end stuck in 
the head (much fun ensued). Since I had a 4.6L in my '08 Mustang I went, 
almost in a panic, to check my car's plugs but, fortunately, it had a 
later version of the heads that didn't bury the plugs so bad, and used a 
stronger, one-piece plug. I changed the plugs at about 90K miles and it 
was a piece of cake.

On 1/27/2021 7:46 AM, Bob Spidell wrote:
> Nope.
>
> The Champion plug that seems to be the most commonly available 
> off-the-shelf is RN12YC (I may have jumbled the letters). This for a 
> BJ8; my BN2 uses a different one, but I don't recall offhand (N9?). 
> The 'R' is for resistor, which I believe is about 15KOhms, the 'C' is 
> for copper (none of that fancy iridium or platinum stuff for an old 
> Brit car).  I run them with 7mm stranded wire secondaries, with 
> resistor plug caps--again, about 15KOhms--and have never had an issue, 
> and I have a Pertronix points sets on both my Healeys. They're good, 
> with one re-gap, for over 25K miles but, usually, if I go to the 
> trouble to pull them I put new ones in. Years ago I bought a bunch on 
> sale for about $1/ea. at Pep Boys.
>
> I've mentioned before that Champion brand is the go-to in light 
> aircraft piston engines; they have standard and 'fine-wire' electrodes 
> for engines that are known for lead fouling.
>
> Bob
>
>
> On 1/27/2021 7:28 AM, warthodson--- via Healeys wrote:
>> I have never had a spark plug let me down. Has anyone on the list 
>> ever had an issue that could be attributed to a spark plug? Using the 
>> incorrect spark plug for the application does not count, nor does 
>> failing to change plugs when required. Both of those are attributed 
>> to the failure of the person responsible for maintenance.
>> Gary Hodson
>>
>> -----Original Message-----
>> From: m.g.sharp at sympatico.ca
>> To: gradea1 at charter.net; fsufan1952 at yahoo.com
>> Cc: 'healey list' <healeys at autox.team.net>
>> Sent: Wed, Jan 27, 2021 6:48 am
>> Subject: Re: [Healeys] Spark Plugs
>>
>> I’m with Hank, Champions have never let me down.
>> Mirek
>> *From:*Healeys <healeys-bounces at autox.team.net> *On Behalf Of 
>> *gradea1 at charter.net
>> *Sent:* January 26, 2021 4:25 PM
>> *To:* 'fsufan1952 at yahoo.com' <fsufan1952 at yahoo.com>
>> *Cc:* 'healey list' <healeys at autox.team.net>
>> *Subject:* Re: [Healeys] Spark Plugs
>> Seems like a sacrelige to use Japanese plugs in a British machine. 
>> Especially since the 240 Z buried the British sports car market in 
>> the '70s.
>> I have always used Champion UN12Y plugs as specified for the BJ8, and 
>> never had a problem even though Champion had some bad press about 
>> their manufacturing.  Of course I use regular points, so maybe there 
>> is not as much demand on my plugs. Hank
>> -----------------------------------------
>> From: "Don via Healeys"
>> To: "healey list"
>> Cc:
>> Sent: Tuesday January 26 2021 10:28:46AM
>> Subject: [Healeys] Spark Plugs
>>
>>
>> Good Afternoon All
>> I’ve been using NGK spark plugs , BP6 ES. In my 67 BJ8 with 
>> electronic ignition. I just went to my local parts store and I was 
>> told they can’t get them anymore.
>> What else is everyone using with success?
>> Thank You , Don Day 67 BJ8

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