Not really the right place but someone might of come across problem before....

2.7 Nissan engine in my Hackney taxi. When "normal" town driving the temp reads about a quarter but when doing around 50 on a run the temp slowly rises and keeps going up!!.

Have tried new rad, temp switch, flushed out system, thermostat and its still same. Waterpump maybe?

Any ideas?

Cheers!!

 

could be head gasket

 

Hmmm, no water in oil or other way round. Any other way of telling?

 

Neil Clark
it doesnt have to be mixing could have just blown the fireing ring to water jacket on the gasket. or a cracked head