Hi Guys,

 

Does anyone know the recommended gap for NGK BKR7EIX on a twincharger?. I have a set in already with #3 just starting to fail after about 15k.

Lucky you got 15,000 miles out of them.  I have seen ones fail at 5,000 miles and i had ones at 8,000 miles a few years back.

 

0.7mm was what they were set at.     What are the ones set at that you have ready to go in.

 

EDIT, 

Just checked, it was 8's i had in that failed at 7,000 miles. well the 1 plug did, and that was with Stage 1.

Edited 12 July, 20187 yr by Offski

Stock gap is 0.8mm according to their website. I will get the feeler guages out to check. Any idea why it's often #3 that goes?

Yes i know why plug 3 goes.

Inlet Manifold, Engine Management and fundamental design and manufacturing faults, oiling the plug, carbon build up and over heating.

Why a Twincharger dies.

Get DENSO plugs.

 

http://briskoda.net/forums/topic/237997-bkr7eix-or-br8eix-spark-plugs/?page=3 

I'm going to pull them now, will post a pic of the plugs coming out. Is cylinder 1 under the diverter valve? Left side when stood in front of the engine bay?.

Edited 12 July, 20187 yr by FlexibleMouse