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The mkiv Supra Owners Club

stripping engine, took spark plugs out and found


MySupra

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It can get dirty round the plugs so nothing unusual to drag some grit particles out with the plugs, in regard to oil on them, as James mentioned, it's most likely cam cover gaskets weeping oil, luckily a fairly inexpensive and straight forward job.

 

On another note, the plugs do look a little coked up, does the car run a little rich?

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More than likely the hoses at the back of the head that feed the heater matrix then.

 

If your going as far as stripping the motor down it would a good call to replace all the

coolant hoses with either o/e or silicon

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