Air Locks
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Coolant Air-lock removal

MkIII Supras have a tendency to create air locks in the coolant system. This causes overheating. Here's how to get rid of them for ever.

Take out your thermostat

Drill a 5 mm hole at the top of the thermostat - where the litle valve thingy is sitting.

Refit thermostat

Fill up your coolant system

Let her get warm and refill system

 

Supplied by Niels Vangsoe (who has a very fast MkIII and knows what he's talking about, except when pissed)