1999 SWB Pajero 3.5 overheating in desert only

[gaurav]

Hey Dragon: The day you visit Dubai, shoot me an email and will go in desert together and you can drive my ride.

Now planning to change spark plugs by myself (for first time in life) with this as im getting very curious to start feeling my rides by myself (personal satisfaction)

Will post pics when i hit proper desert drive soon. Thanks.

[dragon]

never go on your own though mate just incase an unfortunate accident occurs at least you have someone to help you .
wish i could afford to take you up on that offer mate

[gaurav]

never go on your own though mate just incase an unfortunate accident occurs at least you have someone to help you .
wish i could afford to take you up on that offer mate

If u mean for desert drive, i DAMN agree that to never go alone after seeing and recovering many of my friends who dare to go alone and i got a call after few hrs with their coordinates to drag them out. We usually go out with 5, 10 cars every week almost.

If you mean for changing plug, then yes i tried and i got scared and came back with these pictures.lol. Will be visiting professional soon.

[gaurav]

SAD SAD SAD, Please help guys.

Just came from desert drive and immediately after 2 km in sand my pajero again started overheating and started throwing coolant from expansion bottle, so i exited and as i hit road temp came back normal.

So far i have done all this following things, please advise what next.

New 3 point (newer model pajero type) NGK (BKR6ETUB) spark plugs
New 3 HT lead and new 3 coils (due to slight missing and roughness)
Cleaned the radiator thorougly by opening it fully line by line
Filled with 40% (water): 60% mixture of radiator coolant (prestone)
Changed the viscose fan
Checked AC fan is working
Thermostat is out (but it was new, and i have preserved it in a jar of water to be refitted once all is well)
Changed Air filter
Changed fuel filter
Changed EGR gasket


On road it runs with beautiful acceleration and shifts normal and never overheat. I tried driving in 4x4 gear under 80kmph on road and still no overheating. As it enter desert it throw heat and at first start throwing coolant out of expansion bottle and coolant in the bottle start boiling VERY HOT.

It could be start of screwed up head gasket????? (then how come its still doing 0 - 100 in 12 secs on road)

Its 3.5 with 24 valve and 1999 model, if anyone has this model can you please confirm if the original radiator is 2 line or 3 line? As im also doubting it cud be radiator because when i removed and got it cleaned i saw it is 2 line but on the head of radiator there was design of 3 line, so may be previous owner thought of cost cutting in maint and got 2 line rad in past in place of 3 lines.