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Spark Plugs What are you guys using in the Essex V6 ?

Posted: Mon Sep 21, 2020 7:57 pm
by Steve_S
What spark plugs are you guys using in the Essex engine ? I remember back in the day they liked the Motorcraft AGR22 but no longer available as far as I can find

Spark Plugs What are you guys using in the Essex V6 ?

Posted: Mon Sep 21, 2020 8:01 pm
by AJL Electronics
BPR6ES.

Spark Plugs What are you guys using in the Essex V6 ?

Posted: Mon Sep 21, 2020 8:26 pm
by Gillsfan
I have a spark plug question. I have the green ones fitted I was planning to change to the other set are the spare set I've had in the garage for a few years. My eagle-eyed friend noticed that the spare set had a different number on them. I got them with a job lot of 5a spares and assumed they where Essex ones. My google search seems to indicate they are hot plugs for the Essex. Does anyone have any thoughts?
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Spark Plugs What are you guys using in the Essex V6 ?

Posted: Mon Sep 21, 2020 8:46 pm
by philhoward
The BP5ES look just like the fakes GeoffTE had issues with...

Spark Plugs What are you guys using in the Essex V6 ?

Posted: Mon Sep 21, 2020 8:59 pm
by Will Anderson
These and they are worth the money.

Spark Plugs What are you guys using in the Essex V6 ?

Posted: Mon Sep 21, 2020 9:18 pm
by willholderogri
I use bp6es all the time never had any issues .I checked my cheap eBay ones and they were genuine .

Spark Plugs What are you guys using in the Essex V6 ?

Posted: Mon Sep 21, 2020 9:20 pm
by GeoffTE
Steve, I would definitely check those bp5es ones against the criteria to look for in a possible fake plug. See my post of 31 Aug
https://www.scimitarweb.co.uk/sgwrs/vie ... =1&t=43822

Spark Plugs What are you guys using in the Essex V6 ?

Posted: Mon Sep 21, 2020 9:55 pm
by scimjim
No need for hotter plugs on a road car - use 6’s.

Spark Plugs What are you guys using in the Essex V6 ?

Posted: Mon Sep 21, 2020 10:24 pm
by Old and Slow
Don't forget, the BPR has a resistor in the feed, the BP doesn't; if you have resistive ignition leads then don't use the BPR as you will possibly develop misfiring.
The difference between 5 and 6 isn't much - hotter plugs might cause pre-ignition on the track, but unlikely on the road.
If you have copper HT leads they are worth trying, I don't think I'd be able to feel any difference (but might hear it interfering with the radio!)

Spark Plugs What are you guys using in the Essex V6 ?

Posted: Sat Oct 17, 2020 9:37 pm
by adamwilkes
I started off mistakenly using BPR6ES plugs (with resistors built in) and carbon leads - now changed to BP6ES spark plugs and it starts a LOT more easily, with no other changes to the engine.

Spark Plugs What are you guys using in the Essex V6 ?

Posted: Sat Oct 17, 2020 10:12 pm
by scimjim
adamwilkes wrote:
Sat Oct 17, 2020 9:37 pm
I started off mistakenly using BPR6ES plugs (with resistors built in) and carbon leads - now changed to BP6ES spark plugs and it starts a LOT more easily, with no other changes to the engine.
I reckon your plugs were probably faulty then.

Spark Plugs What are you guys using in the Essex V6 ?

Posted: Sat Oct 17, 2020 10:26 pm
by ScimiTom
I fitted NGK BUR6ET spark plugs to my 5a three years ago, in the belief that these were the recommended type. Have these fallen out of favour? :?

Spark Plugs What are you guys using in the Essex V6 ?

Posted: Sat Oct 17, 2020 10:54 pm
by adamwilkes
In the project thread 'SAR Massive irregular misfire', with ref to spark plugs with & without built-in resistors on page 8 it seemed that :
AJL Electronics wrote:
Thu Aug 27, 2020 2:19 pm

The reason that the two types exist is the variance in HT leads. If you have the carbon string type that were popular once, then you use non resistor plugs. If you have wire HT leads, then resistor plugs are required.
So I assume that because I have carbon-based HT leads (new ones, with innate resistance for interference-suppression), I certainly need BP6ES, not the ones with a resistor built in (BPR6ES). And they seem to be happy chappies.

Spark Plugs What are you guys using in the Essex V6 ?

Posted: Sun Oct 18, 2020 4:33 am
by philhoward
That’s pretty much how I have worked with traditional ignition systems - the resistor bit is either in the loads (carbon/suppressed/etc) OR the plugs (an R in the part number in the case of NGK plugs) but not both.

Spark Plugs What are you guys using in the Essex V6 ?

Posted: Sun Oct 18, 2020 9:02 am
by scimjim
I’ve just looked up the original plug spec in the handbooks (autolite AG22) and the NGK alternative is BP7ES.