spotted this;

[kennyrodg]

could this possibly be whats causing our 2.4 td's to spew all the coolant out.
http://www.toyotasurf.asn.au/forum/v...ghlight=cooler
mines got a very recent modified head.its fine around town,hit the motorway or a long hill climb and hey presto,no coolant left.maybe this is old news but i thought i'd bang it up all the same.
let me know what you think.

[whirly03]

i think mr toyota has spent millions developing the coolant system,,,maybe you shouyld leave it alone,,,,,, and just run lees anti freeze in your water so it decipitates the heat beetter