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Discussion Starter · #1 ·
Ive never changed the plugs myself before so Ive never really had the chance to see how bad they can get.
Im just going over the Astra at the mo changing anything that looks like it needs done.
Here are some pics of the plugs. The only one which was slightly different was number 4 (gearbox side of engine). Number 4 had a sooty style build up around it and wasnt as tight in as the others.

Number 1
Number 2
Number 3
Number 4
Better view of 4
 

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they look ok .... im no expert but a pale brown colour on the electrode is a good thing ......... but lots of things can change this depending on your motor .aslong as they are all roughtly the same and not jet black or white
they will b ok
there is normaly a page in a hanes manual that shows all the difrent problem with plugs

tom
 

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Discussion Starter · #4 ·
Yeah, the only thing I couldnt understand was that 4 was slightly coated in carbon.
Maybe it just wasnt in tight enough and some was getting out past the seal?
 
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