Thread: Toyota Surf

I've had a 1994 non intercooled turbo 3litre Toyota Surf for some 6yrs or so now, it's coming up to 159thousand kms, had it since 70kms
It' hasn't given me any trouble but Dinos thread got me thinking , maybe I should spend some money on it to
help avoid this cracked head thing people talk about
I am not exactly handy as a mechanic, I do know that if you turn the key on and it doesn't go then there is probably something wrong.

It has a 1KZ-TE motor is Auto and as I said neary 160th kms.
I've been told it has the bigger radiator. I've some questions perhaps the more knowlegeable could help with

1- how do I know when the injectors need done and should they be done about now.
2- would fitting a proper snorkel be of any benefit, if so what type is best.
3- I'm fairly certain my LSD doesn't work and have had the oil changed but it still doesn't seem to go, when I have it in normal two wheel drive and one back wheel is off the ground it goes nowhere , the wheel off the ground just spins, I have to put it in 4x4high to get the front wheels to drag me forward.
Do I actually need the LSD to work?
4-would fitting a better exhuast help avoid the head cracking, if so what should I do.
5- Anything else ?

I've serviced it every 6mths since I've owned it regardless of the amount of kms I've travelled and it has had new filters every 10thou.I fitted a trans cooler the day after I bought it and it has a turbo timer which I use.
cheers.