Plugs again

[HarryW]

Whilst cleaning and reseting my plugs last night I was slightly suprised to find that they were B8ECS's and not B7ECS as normally fitted .

Questions -
Whats the difference between the two?
Should I continue with them?
Should I change them back to B7ECS's?
I've set them at 0.85 as i couldn't find a definitive setting either 0.8 or 0.9 being quoted, whats best?

In addition i noticed that the plugs at the extremes of the block i.e. plugs 1, 2, 7 & 8 seemed more sooty than the ones on the inside of the block, is this because it's 'cooler' at the edges of the block?

Thanks in advance.

Harry

[HarryW]

Tim/steve/peter

any ideas??, as I've never heard of the B8ECS being used before, I take it by the higher number it is a 'colder' version of the B7ECS??

H

[HarryW]

Thanx for the advice I think I’ll fit the 7's then, might just hang onto the 8's though just in case.
I'll be careful Steve when I take them out so as I don't start a nuclear reaction.
I got given the number of NGK tech support earlier, I may just ring them tomorrow out of curiosity to see what they say anyway.

Harry

BTW re a previous thread the 'C' definately stands for copper in the 'ECS' part.