Engine over heating on AC, minor tweek, DONE

Sometime back in April - May 2009EE 90 Heat Up I requested members to help me with the occasional overheating problem of my daily ride EE90 Auto -It was temporarily fixed after I got the Aircon compressor changed, 3000 km later the problem resurfaced, and I was on & off travelling and paid very less attention. Because My Prado was drowned in rains and it was in TOTAL DONE electronically.

this year June i made up my mind and got the EE90 over hauled. Got major stuff carried in from Dubai & Singapore, -

75 KM done and over heating on the aircon problem showed up, It took day lights outta me and my mechanic, 1. went to aircon shop he checked Thumbs Up, 2. Got the Silencer replaced from front to rear, 3. replaced the radiator - 300 KM done and temp shot up when aircon switched-on, was consistent.

spoke to a friend exporting right hand drive cars from Japan worldwide and explained him the problem, on & off he was chasing some former Toyota guys he knew off - 3 weeks (1900 KM done without aircon) later he called n asked for "CHANGE THE Main engine Pulley Set" -

Locally tried to source but was not convinced of available stuff punched rivetted sliped bolts etc, asked a friend to source it from sharjah - he got me 2 genuine from scarp yard, (2300KM done without aircon) - replaced the Pulley. and WOW, Problem done resolved, - Radiator returned, to the radiator wala for Rs. 500 less. back on the original one. Now its 5700 KM and 2 trips to Quetta, and often to Mirpur Khas temp with aircon needle stays at past 40 min. (consider your clock arm at 40 min).

The pulley we removed from the engine was OK apparently however on close bright light and magnified glass inspection it was revelaed that the rubber bushing over which the outter pulley is screwed. It torques the aircon compressor, was badly cracked. The slip happening between main pulley & aircon pulley happens at high speeds which does not give enough torque to compressor, and WAS causing over heating -