I've been told, that if you have a problem wit your RST running hot, you should change the thermostat and the thermo timeswiths to those from a cossie????

can some conferm this??

 

yeh ive done this as i have a grs up front the cossie stat opens at 82 i think and the standard one at 88..

mine still runs hot....and i found out the fans are the wrong way so its sucking hot air though the rad to the front

 

also check header cap isnt leaking ive got an XR2 fan switch an the fun cuts in right on the quarter mark

 

my rst is at the moment fairly standard but id like to uprate the cooling before i do much more to the engine, whats the best way for me to do this and for me to be able to use myself!?

 

I have had my thermo remove so it runs cool. will have to put it back when winter comes tho

 

rs_daz: nice one mate..... LOOOOL

vroooom ptssssh: my old header cap was leaking... so now im waiting for a bailey headertank I think I will buy a XR2 fan switch tomorrow.. sounds very good.... tanx mate

 

Sounds really silly but I think really important. I had this problem when I was running a GRS. do you know what I needed to do. Change the Rad. I thought mine was ok but I bought a new one and never had another problem.

 

VRRROOOOOOOOOM

is an XR2 fan switch the same as the 4x4 cosworth one that i have just bought !?

 

Could also be a lazy water pump or headgasket trouble

 

i have similar probs, my rst gets hot real quick in town, sometimes even gettin up to the 'n' of norm. then she takes ages to cool down when i start driving at 30 mph. on the other hand, i took her for the 1st time on the m1 and the temp gauge was REAL low, it was literally 1mm below the very first marking on the gauge

i have changed the fan switch for a new one (wasnt cutting in till near top of gauge) but it hasnt helped a great deal , cuts in a lil earlier but not a lot.... this xr2 one sounds good, may have to invest lol1

 

it would be low on the m1 bcos your blasting it down the motorway so you would get cool air into your engine bay. Fan dont usually come on when your driving down the motorway. Ideally your fan should come on when the temperature guage is on half

 

Spot on!

 

As he said

 

I tjecked wit my local ford dealer.... and the XR2 fan switch was soposed to be the same at the one that already are in a RST

 

get a COSWORTH 4x4 FAN SWITCH THEN !!

ITS RED NOT ORANGE

 

this is what i told rs adam but i couldn`t rember from what cossie to take the fan switch from
problem solved then

 

if its running more than half way on the gauge u have a problem somewhere, unless u have a grs i/c that is!.

ive got a grs, low temp thermostat, heat wrap everywhere,water wetter in coolant and mine never goes above the half way mark with twin fans

 

grimmeRST, check that other thread please ?

about ZVH cold starting probs....