Sinjen Posted June 27, 2020 Share Posted June 27, 2020 Hi allFeel a little silly asking this question so apologies in advance.Have bought 4 new NGK BCPR7ES plugs, the main coils on cyl 1 and 3 have gone back on neatly but 2 and 4 are now sitting proud having "clipped" in (approx 7mm proud).I bought the 3330 variant having followed advice on a well known suppliers website but I'm now thinking I should've gone for the 1272 and that they have a slightly shorter overall length.Can anyone confirm this or point out that I've done something very stupid before I shell out for another set?Cheers in advanceEU3 1.6 K Series Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted June 27, 2020 Member Share Posted June 27, 2020 Private Message sent. Link to comment Share on other sites More sharing options...
Sinjen Posted June 27, 2020 Author Share Posted June 27, 2020 Picture of the current problem :) Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted June 27, 2020 Member Share Posted June 27, 2020 Link to comment Share on other sites More sharing options...
SM25T Posted June 27, 2020 Share Posted June 27, 2020 Very odd. Are you sure they are pushed home properly. Link to comment Share on other sites More sharing options...
Sinjen Posted June 27, 2020 Author Share Posted June 27, 2020 Pretty sure they are, putting a fair amount of weight into it, I just get the 1 seating "click". The plugs that came out were the OEM champion nlp100290 jobbies, they measure 5mm less overall length. Thread dia, length etc are the same as these NGK's, the extra length comes from the top half of the plugs... Link to comment Share on other sites More sharing options...
SM25T Posted June 27, 2020 Share Posted June 27, 2020 Sounds like you have answered your own question. Link to comment Share on other sites More sharing options...
Sinjen Posted June 27, 2020 Author Share Posted June 27, 2020 No not really, my original question was, are the 1272 variants a shorter length? This, before I buy a set and find out that they too are too long. Cheers. Link to comment Share on other sites More sharing options...
revilla Posted June 28, 2020 Share Posted June 28, 2020 Following as I've also seen this on VVC engines with BCPR7ES (3330). Link to comment Share on other sites More sharing options...
SM25T Posted June 28, 2020 Share Posted June 28, 2020 Could they be copy plugs from an unknown source ? Link to comment Share on other sites More sharing options...
revilla Posted June 28, 2020 Share Posted June 28, 2020 Mine were from Euro Car Parts so should be genuine. Link to comment Share on other sites More sharing options...
Sim Posted June 28, 2020 Share Posted June 28, 2020 Why would 1 &3 fit differently to 2&4 - surely the fit is going to be the same on all? (I've an EU2 , so don't understand the subtleties of EU3) Simon Link to comment Share on other sites More sharing options...
John Vine Posted June 28, 2020 Share Posted June 28, 2020 Have you tried swapping pairs 1+3 and 2+4 to see whether the problem moves with them?JV Link to comment Share on other sites More sharing options...
revilla Posted June 28, 2020 Share Posted June 28, 2020 1 & 3 have a coil pack on top of them. The spring contacts on these will probably just be a bit more compressed than usual.2 & 4 then have flying leads which sit proud.It's a wasted spark setup with one coil driving two plugs. Link to comment Share on other sites More sharing options...
John Vine Posted June 28, 2020 Share Posted June 28, 2020 Thanks for that, Andrew. I'd carelessly assumed that all connectors were the same! (Blame my EU2 heritage.)JV Link to comment Share on other sites More sharing options...
John Vine Posted June 28, 2020 Share Posted June 28, 2020 Re #8:The latest NGK spark plug catalogue (2017/18) lists BCPR7ES (3330) as an alternative to the recommended BCPR7E (1272), so I would hazard a guess that they have the same overall dimensions. JV Link to comment Share on other sites More sharing options...
Sinjen Posted June 28, 2020 Author Share Posted June 28, 2020 Thanks guys, it's a little confusing. Got these from Opie oils so I'd imagine they are genuine. I'll do some ringing around tomorrow and will report back if anything comes of it. Link to comment Share on other sites More sharing options...
p.mole1 Posted June 29, 2020 Share Posted June 29, 2020 You could try spraying a little bit of WD40 into each cap first, sometimes they can stick a bit Link to comment Share on other sites More sharing options...
Sinjen Posted July 1, 2020 Author Share Posted July 1, 2020 Had an email conversation with the ever helpful Dave Andrews and his feedback was that providing the leads are located on the ferrules securely and the coil cover is in place it shouldn't be a problem. The VVC head has 12mm longer leads so would potentially sit proud even more. If worried about movement of the leads then a spacer can be made up from HD foam.I did manage to push the leads down a few mm more with the help of some WD40 (cheers p.mole) and more leverage, so they're sitting 5mm proud now which I'm ok with. Having done some measurements, the plugs should fit fine with 1mm spare, I think the problem is more to do with the tightness of internal ferrule locating tubes (oi oi), maybe over time they'll loosen a tad. Cheers all Link to comment Share on other sites More sharing options...
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