Offroad-Express

can anyone help me out and tell what could be causing my engine to get hot after driving for around about 20mintues or if i put a bit of load on it going up a long hill. thanks

could be many things, first off are both radiator hoses hot? if one is but not the other start with the thermostat (its in a arse of a spot so it doesn't get done often if at all) if no change with a new thermostat try new radiator and cap.

Could be thermostat, blocked radiator fins (check ac fins too), viscus fan hub not working, or it could be a faulty thermo prob/gauge combo.

hi yea sorry forgot to say i put a new thermo in yesterday and still getting warm it cools right down after i go back down the hill

Radiator could be blocked.. Water pump could be stuffed... Seen one where all the fins were worn / corroded off once.
Also are you reading the factory gauge?? As it could be playing up...And there may be nothing wrong at all?

i have a brand new water pump here that ill put in next weekend and yes i am reading off the factory gauge ill put a aftermarket gauge during the week what temps am i looking for?

Radiator or viscous hub I'd say

are both hoses hot?? will help narrow it down!

yes both are hot the temp never gets more then 3/4

surfee wrote:yes both are hot the temp never gets more then 3/4

Id say you've already done damage then!

is it a later model one - kzn185?

if its intercooled - sell it to me - if not trademe it for $1.

read through the posts up here, even when people fix these they end up paying for a new wagon (pre 96) with a new head and belts etc, unless your doing it yourself might be a good time to upgrade

join http://www.toyotasurf.asn.au/ forums for a fuide on how to do everything to your surf including replacing the head, fan cluth, thermo, sensors or what ever may be causing the overheat....

sounds like radiator is shot.
if its overheated that probably will have cracked the head.

if it has a cracked head shouldnt it be using water?

surfee wrote:if it has a cracked head shouldnt it be using water?

if bad yes, but not always.

great not what i need hahah, could it be anythin else?

it could be the viscous fan but i don't think so , go for a drive get it hot, feel the hoses if they are really hard let it cool down enough so you can get the radiator cap off without burning yourself then the cap off and start the car and give it a rev. if you get a geyser out of the cap i would say cracked head ,we have had good results with the irontight block sealer as a short term fix or long term if you keep using it.

ok cool thanks ill try that when i get home

Where are you located mate? There is another way to tell for a cracked head. Send me a pm if you like.

Pete.

hi im in west auckland

Don't get a tee-Kay test done,it doesn't work very well on diesel's,

all sorted now guys thanks for your help

What was the problem?

i pulled the radiator out and it was fully blocked up with mud :/ my bad

surfee wrote:yes both are hot the temp never gets more then 3/4

FYI anything over halfway on the gauge is overheating. They are made to sit in the middle throughout a wide range of temps, from memory mine was in the middle from 70degC thru to the high nineties.

smurf182 wrote:

surfee wrote:yes both are hot the temp never gets more then 3/4

FYI anything over halfway on the gauge is overheating. They are made to sit in the middle throughout a wide range of temps, from memory mine was in the middle from 70degC thru to the high nineties.

Google, Toyota Surf temperature gauge mod.

or just fit a real temp gauge that actually gives you meaning fuel numbers.