Newbie from New Zealand

Hi there all, have found the info here usefull so thought I'd join up. Ive had the dreaded 1kz cracked head and about to refit. Hoping it will be the last time I do it!

hi and welcome to the forum sorry to hear about the head problem hope you fix it soon

Welcome from me as well. Many $'s for head ?

Hey Ricardo,

Welcome to the forums from a fellow kiwi, theres a couple of us floating around on these forums.

Hi and thanks! Head now replaced and no problems. I have been testing temps with an aftermarket temp gauge while towing my ski boat and it gets up to 110 degrees on long hills! I have added fluid to, and changed the fan fiscous coupling timing so it comes on earlier. Also added a huge oil cooler to take heat out of the auto trans fluid before it returns to the radiator in-tank cooler and removed plastic ducts to open up the front for more air to the vertical radiator. Not much else to do really to control heat! Incl old head pressure testing and paying for the new head to be fitted with the old vavles etc, cost about $1700 with myself doing the head removal/replacement .

Yeah welcome ricardo, i too see high temps around 100 -110 degrees with mine. I haven't ever cracked the head but i'm worried if i don't fix this. I suspect my radiators could be partially blocked or my water pump is stuffed. I have to replace my radiators soon anyway cause they are both leaking so when i do this i will do water pump as well and report back.

Hi, your radiators might not be stuffed, one of mine was leaking also but only needed a new seal. I have had both radiators out (bottom one is a bit of fun as it sits under the A/C radiator which must be supported) and end tanks removed. They had only very minor build up. Make sure they do a good check on them and have them "rodded" to ensure they are free flowing. I have a new water pump also and with the other mods as mentioned, still hits 110 with my 1100kg boat in tow on hills. Short of replacing the main radiator with a higher performing unit, I can't think of much else to control temps. Let me know how the radiators look. Rich.

Yeah my tanks are cracked unfortunately.

Didn't realize you were towing a boat... mine still reaches 110 degrees without towing.

When i receive the new radiators i will be doing the job myself so will let you know how i get on.

It's a good idea to do the viscous fan mod while everything is out too. Buzz me if you need any info. Rich.

Cheers mate will let you know.