6 replies to this topic

[Big Man]

1992 Spi Cooper

94500 mls.

Changed the raditor for a non SPi radiator (without the aux fan sensor) straight swap fitted no problems. Bled and topped up accordingly.

Prior to the swap (despite the old rad leaking) engine temp was a needle width below the half way line.

Now the temp barely gets off the lower white (cold) marking.

Car idled previosuly perfectly at approx 900rpm.

Car now running rich (sooty deposits on rear bumper) and idels at 1500rpm.

I suggest that this is due to the ECU realising that the engine is not "warm" and overfuleing.

The rich running happend previosuly and all I did was change the Air Temp sensor- however i have not come accross the low indicated engine temp.

Help please as running rich is not good for the car or my pocket!!

Cheers

BM

[coopermpi]

have you checked the thermostat, it might be stuck open or something?

[Big Man]

have you checked the thermostat, it might be stuck open or something?

to be honest no I havent checked the thermostat, will get one and change it on Wednesday! just seems a little coincidental that all was fine and dandy before i changed the Radiator and now everything has gone to rat!

Cheers

BM

[coopermpi]

sometime these thing happen at the same time! my thermostat was stuck open when i bought the car and it was never getting up to temp and running rich. Id changed the plugs and leads thinking it was that, but it was the stat

[Big Man]

Will fit new thermostat tomorrow....... how about an air lock somewhere??? As when heater on temp really low.....when heater off (cold) temp gauge rises??

BM

[Big Man]

thermostat changed....bledd system for a good half hour result:

Temp is now a needle width under half - perfect!

Idle when warm is approx 850 - 900 rpm - happy

heater - red hot

Thanks COOPERMPI

BM

[coopermpi]

no worries, glad to have been a help!