red colour on sparkplug#3
01 October 2002, 06:23 PM
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as the title suggests i changed the s/p today all was fine,i noticed thought that #3's cyl. spark plag had a red colouring that the others did not have.
anyone can speculate on the colouring?
the car has no mods and only 42000kms-my00
anyone can speculate on the colouring?
the car has no mods and only 42000kms-my00
02 October 2002, 12:56 PM
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What fuel you running? Using octane boosters? Sounds like MMT, but why only on one plug I don't know...remember, Big end bearing on 3 is prone to failure...might be first signs that you are running lean...?
02 October 2002, 12:59 PM
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I heard that octane boosters can cuase your plugs to turn redesh in colour, supposibly completely harmless; however, the puzzling thing in your case is it only occured on 1 plug......go get it looked at imho
Cheers,
Ray
Cheers,
Ray
)
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03 October 2002, 10:59 AM
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May be something as simple as water ingress into the plug cap,have you ever powerwashed your engine.
I have seen this before when changing plugs,and Ive put it down to water ingress.......not on Subarus tho.
I have seen this before when changing plugs,and Ive put it down to water ingress.......not on Subarus tho.
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