Author Topic: ngk plugs BP6ES or 5ES? plus suggested gap please  (Read 3050 times)

Paul99

  • Full Member
  • Silver
  • ****
  • United Kingdom, England, Hampshire UK
  • Posts: 300
  • 230 SL White. 1966.
ngk plugs BP6ES or 5ES? plus suggested gap please
« on: September 23, 2012, 18:24:23 »
Looks like the best plugs for a 66 230 good engine (no oil burn/good commpression etc) are either 6ES or 5ES - is that still the case?  and gap size please?

Jkalplus1

  • Guest
Re: ngk plugs BP6ES or 5ES? plus suggested gap please
« Reply #1 on: September 24, 2012, 13:52:25 »
Lots of replies to that one if you perform a search. 

I am replacing Bosch W6DC gapped at 29 thousandths with NGK BP5ES and I will gap them at 35 thousandths, but I have a Pertronix Ignitor installed and a Bosch red coil.  I run a rebored engined with 3000 km since the last overhaul, even and good compression on all six, no noticeable oil consumption over the last 2000km since I changed the oil.  The plugs I am replacing display the light brown color that we like to see.