Car Is Over Heating "r33 Gtst"

[Stealthynsa]

You fitted a thermo fan that never turns on?!?! FFS!

Having a thermo on constantly basically defeats the purpose of having a thermo fan (it's called a thermostatic fan because it is controlled by a thermostatic switch). What you gain by removing the load of an engine-driven fan is replaced by the additional load of driving the alternator to supply enough current to drive the thermo fan.

Just put the factory fan back on.

Ok maybe I'm saying it wrong "I have only replaced the engine and loom!" radiator and fan on front are standard non turbo stuff! The fan on the front "whatever it's called" doesn't turn on at all so what we be the problem do u think?

[TiTAN]

what about the fan that bolts onto the front of the water pump? if you have that put it back on and see how you go.

[r33_racer]

You are talking about the mechanical fan that drives off the waterpump right? Not the aircon thermo right out the front i think it is...

[blind_elk]

Ok maybe I'm saying it wrong "I have only replaced the engine and loom!" radiator and fan on front are standard non turbo stuff! The fan on the front "whatever it's called" doesn't turn on at all so what we be the problem do u think?

The fan out front is the thermo over-temp fan for the A/C. The switch is the one in the bottom tank of the radiator.

If the engine is overheating even with the factory engine-driven fan fitted, there is an extremely good chance that the impeller on the water pump is cactus, and no water is being circulated to help cool the engine. You will have to pull the pump to confirm.

[zeko33]

i had the same problem, replaced thermostat and was good for about a month and then happened again. the real problem was the radiator was 70% blocked. try getting the radiator tested. Its easy to take out and while ur doing that change/check thermostat and flush engine . . . . radiator cost me $110 brand new from nat rad in epping.

[Stealthynsa]

i had the same problem, replaced thermostat and was good for about a month and then happened again. the real problem was the radiator was 70% blocked. try getting the radiator tested. Its easy to take out and while ur doing that change/check thermostat and flush engine . . . . radiator cost me $110 brand new from nat rad in epping.

yeah i took the thermostat out just to check it and its working better not its gone.

ill be getting a new 1 this friday and ill be changing my radiator to that justjap one.

yes the fan infront of the aircon/radiator "black one" is the one that isnt working.

i dont know why it doesnt... and i have now noticed another problem!

my heat gauge "since engine install" even when cold doesnt go below half way now ffs!

i know my engine still is "extremely" hot when its at max temp cause i felt it but

the stupid gauge wont go below half way... any ideas on why that is now?

[r33_racer]

Perhaps its just your temp thermocouple, which i think is in the outlet of your manifold that goes to the top of the radiator...it might be stuffed. Try replacing that.

[WHITER33GTS-T]

is there any difference between a RB25 temp sensor and RB26...? Different resistance or something...?

As I have just fitted a 26 head to my 30 bottom end. (was running 25) and now temp seems to warm up really fast.

I dont have another guage to check the temp.

[MBS206]

is there any difference between a RB25 temp sensor and RB26...? Different resistance or something...?

As I have just fitted a 26 head to my 30 bottom end. (was running 25) and now temp seems to warm up really fast.

I dont have another guage to check the temp.

Yes there is a difference,

There's also a difference between R32, R33, and R34 as I said earlier.

You're all prepared to tell this guy to rip his water pump off, buy a new radiator... I did all that and learnt the hardway... GET THE CORRECT TEMPERATURE SENSORS FIRST.

If you have the old motor, refit them!

[WHITER33GTS-T]

I dont have the 25 sensor anymore.

Do you know a part number by any chance..?