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Tuesday, 29 April 2008

Spark plug change Ferrari 308 GT4

Spark plugs changed. NGK BP6ES, stock 0.7mm gap

1 Biscuit
2 Biscuit
3 Dirty
4 Biscuit
5 Dirty
6 Dirty
7 Biscuit – difficult to get out, the seal lock ring had run down the plug thread
8 Biscuit

Great plug discussion on www.ferrarichat.com and the NGK website

Watery grease on plug ceramic for plugs 6 and 7. Plug extender seals 6,7,8 hard and perished. Replaced extenders and seals with new from Superformance costing £80 total.