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Heya all,
Just bought some NGK Iridium plugs for my 93 L Series (Ea82, petrol, carby) now the issue is these were freighted to Kalbarri ex Perth and they all have the code BPR6EIX however they have sent three with another number of 6637 underneath and one with 3484, the question are these the same plug.

Research on the NGK site reveals the codes for the plugs (Below)

SUBARU LEONE 1800 AP5 EA82
1986/10 Start date
1989/1 End date
BP6ES 7811
22401AA020 6427
BPR6EVX 6764
BPR6EIX 3484
BPR6EIX-P 2664 4

Now I have always been using the BP6ES with the 7811 code, but the Iridium is showing a code of 3484 to which Perth sent me one of, but do some research on google with (93 Subaru Leone BPR6EIX) and most will show to use code 6637.

Got me stuffed any ideas.

Cheers

WayneO.............................

hmmm, never looked for numbers beyond the basic BP6ES etc. The extra bits not just a carton code ? Some Bosch ignition stuff has an extra part letter "C" ? indicating simply a clear plastic bubble packaging rather than in a box. I use BP7ES being a colder plug for hotter conditions for what I am burning nd then if you have an mpfi EA82 the BCP series are great - smaller 5/8" hex body of the plug as the bigger standard often causes the larger plug socket to foul the head casting. How were the plugs invoiced - basic numbers or the extras ?

Wonder if you are reading too much into it...I just went in and had a look http://www.ngk.com.au/spark-plugs-part- ... to-iridium

entered BP6ES and did not get any additional numbers like you are concerned about - just got their recommended iridium number - after reading and accepting the disclaimer Sometimes the additinal numbers are there if the gap set at factory is above old fashioned norm of 0.8mm such as the BP6ES 11 - they got a 1.1mm factory set gap

steptoe wrote:Sometimes the additinal numbers are there if the gap set at factory is above old fashioned norm of 0.8mm such as the BP6ES 11 - they got a 1.1mm factory set gap

Gday Steptoe, thanks for that you hit the nail on the head, I just checked the gap difference between the two codes and one is 1.1mm and the other 0.8mm, cheers for that.

4 New NGK IRIDIUM IX Spark Plug BPR6EIX # 6637, Iridium IX Plug, 14mm Thread Size, 19mm (3/4") Reach, 13/16" (20.6mm) Hex Size, Gasket Seat, Resistor, Removable Terminal Nut, JIS Height, Projected Tip, Fine Wire (0.6mm) Iridium Center Electrode, Tapered Cut Ground Electrode, .031" (0.8mm) Gap, Heat Range 6


NGK IRIDIUM IX car spark plug BPR6EIX 3484 for VW
specification
Iridium IX Plug,
Thread Size:14mm
Reach: 19mm (3/4")
Hex Size:5/8" (20.8mm)
Gasket Seat
Resistor
Solid Terminal Nut
Fine Wire :(0.8mm) Iridium Center Electrode
Gap:.043" (1.1mm)
Heat Range :6

Cheers

WayneO..................

The centre electrode diameter is different, so is the "reach", whatever that is lol.

Definitely only use all the same plugs, otherwise you'll do damage to your coil. Larger gaps will cause the coil to work harder and get hotter, thus the chance of failure.

0.3mm doesn't sound much but under compression that gap is increased 10 fold, so best to get that one replaced.

RSR 555 wrote:Definitely only use all the same plugs, otherwise you'll do damage to your coil. Larger gaps will cause the coil to work harder and get hotter, thus the chance of failure.

0.3mm doesn't sound much but under compression that gap is increased 10 fold, so best to get that one replaced.

Thanks for that Paul, I will have the other one replaced before installing all 4, again your advice has saved me some future heartache, The Ciders are on me when I get down there.

Cheers

WayneO...................

Kalbarri_baru wrote:The Ciders are on me when I get down there.

No worries bro.. just make sure you buy the Dicken's brand

http://www.youtube.com/watch?v=HQkNqrisok4

RSR 555 wrote:No worries bro.. just make sure you buy the Dicken's brand ]

Sorry bloke like I said I am a little short at the moment, so I can't get Dicken's just hafta do with Justin Cider, LOL, hey top clip btw.

Kalbarri_baru wrote:Sorry bloke like I said I am a little short at the moment, so I can't get Dicken's just hafta do with Justin Cider, LOL, hey top clip btw.

hahaha.. I heard this about you From what you told me, you'll be lucky to get the Justin Cider

RSR 555 wrote:hahaha.. I heard this about you From what you told me, you'll be lucky to get the Justin Cider

Now now, in my defence it is quite cold here at the moment.

Kalbarri_baru wrote:Now now, in my defence it is quite cold here at the moment.

Hahaha.. gold.. thanks for the good laugh bloke