Hey all, Last week i pulled my plugs out and found this:






The order left to right is from the timing case back to the gearbox.

Then i swapped them all around so the fourth plug went into the second cylinder( from timing case) And also put in a new dizzy cap, rotor button, tightened the actuator, and actually put an air filter in it (didnt have one when i bought it) drove for a week heres the result:






Anyone know what this means? They dont look right......
Cheers, James.

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"BESSY"
SOLD

4th one looks alot more carboned up compared to the rest, burning a bit of oil in that one mebbe... the rest dont look too bad

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Quench my thirst with gassoline!

too much boost. 2 middle ones lean, outer ones rich. you have TB injection.

What boost you running?

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parts needed: malpassi rising rate reg and lotsa work/time
605X405X78 intercooler
D3B4ST8 is almost done

18-20psi this week when i wasnt careful!!But that was only once or twice (Broken Actuator) now thats fixed ill be running 16psi.
But that photo was taken after idling for 5 minutes and then giving it a few revs in neutral then idling for a minute. Any carbon deposits like the ones on the outer too should have burned off while idling (in theory?)

_________________
"BESSY"
SOLD

ehhh. no. and that's too much boost, unless you're tryina blow your engine. 15-16psi max. for stock injectors and TB injection. If you want it to last, run 10.

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parts needed: malpassi rising rate reg and lotsa work/time
605X405X78 intercooler
D3B4ST8 is almost done

The standard cordia intake manifold has preference for cylinders 2 & 3.............it's usual for cylinders 1 & 4 to be a little carboned due to it's design (longer runner).............that's the downfall of Throttle body injection.

What you see is normal.

Center plugs are fine. Black/dark body and grey-white electrode is actually quite good, those 2 are running well. I agree with what Andrew said.

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For all your Cordia's needs in Adelaide.
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