2002 75, 1.8 Non Turbo - Over Heating

[S99]

Hi all,

Just looking for some guidance - I have a 2002 1.8 Non turbo Rover 75.

Since I bought it had somtimes got a little to hot for comfort. The first time I noticed it was a 80 mile drive - I noticed steam coming from the grille.

Firstly we found out that the fan had failed (was the 3 speed). This has now been replaced with the uprated one. (I have checked this is working on the High and Low speed)

Yesterday I went for a drive, ran out of screenwash so went to top it up - opened the bonnet and it was extremely hot, though the temperature gauge was only showing just below 90/ Half way.

I let the engine cool down for a good hour plus, and opened the coolant expansion tank - completely empty though I know it had coolant in before I set off.

The previous owner informs me the head gasket had been replaced with the uprated one (It’s currently on 77k Miles) and its got non of the typical indicators I.e oil cap etc.

Any pointers of what to check, and what to do would be highly appreciated

[suzublu]

Hi, the inlet manifold gasket is a well known weak spot for leaking, as is the water pump & thermostat. Put some cardboard under the car overnight to see if you have a leak. Also, the temp gauge is useless, you need to use the obd to access the correct temp. If you need a hand, I'm just up the road

[S99]

Originally Posted by suzublu

Hi, the inlet manifold gasket is a well known weak spot for leaking, as is the water pump & thermostat. Put some cardboard under the car overnight to see if you have a leak. Also, the temp gauge is useless, you need to use the obd to access the correct temp. If you need a hand, I'm just up the road

I’ll have a look at the places you mentioned shortly, thank you

[T-Cut]

The 1.8 engine bay is a warm place at any time. You can't really conclude too much from that. The only way to see if the engine's running too hot is to drive with the Diagnostic Screen on. This tells you how:

Diagnostic Mode (see section 7): https://www.the75andztclub.co.uk/for...ode+simplified

Or fit a proper gauge. Remember the 'normal' pointer on your dash gauge remains there from 75 - 115C. Not much help, eh.

TC

[S99]

Originally Posted by T-Cut

The 1.8 engine bay is a warm place at any time. You can't really conclude too much from that. The only way to see if the engine's running too hot is to drive with the Diagnostic Screen on. This tells you how:

Diagnostic Mode (see section 7): https://www.the75andztclub.co.uk/for...ode+simplified

Or fit a proper gauge. Remember the 'normal' pointer on your dash gauge remains there from 75 - 115C. Not much help, eh.

TC

I understand it is a warm place, but what worries me is how it’s loosing water. I plugged my diagnostic tester in (as suggested above - couldn’t manage to get the grips of the on board one) and within around 3 - 4 mins of driving from ambient temperature it had reached 93 degrees.

Now, I may be wrong as I don’t know much about these engines but that seems quite abit of a temperature rise for such a short period of time? I didn’t want to take it much further because of the coolant loss issue.

[suzublu]

They do warm up pretty quick, na 1.8's should run at 88-90 degs, rising in traffic to about 95. The fan should kick in at 104 iirc?

[trikey]

An hours job to remove the manifold and fit a new gasket.

May as well change it and rule it out before going any further.