help im baffled. tonight my v4 type r has decided that it wants to overheat. the temp gauge runs fine in the middle of the scale most of the time but after a good thrash it decided to rocket up when on idle. also the blowers went cold but once you set off again the blowers go hot again and the temp comes back to normal. the radiator fans are working ive checked but they seem to stay on all the time? can anyone shed any light on this set of problems it would be most appreciated.

thanks martyn

 

Coolant level is low, possibly (probably) due to headgasket failure. When cold, check the coolant level at the header tank on the inlet manifold.

 

check for leaks maybe its airlocked mate

 

was hoping not headgasket but reckon it could be. where should the coolant level be in the header tank when cold?

cheers martyn

 

about 1cm below the top.

 

checked coolant level today and it was a little low so i filled it back up. the temp gauge has been fine today but under the bonnet in the expansion tank i can nhear bubbling so i reckon the headgasket has gone or is going? apart from that everything else is fine no mayo in the oil, no white smoke and no loss or power or poor running. any other advances on the problem?

cheers martyn

 

blocked radiator?

flush and clean the system and refill with new coolant

 

ok cheers for that idea. whats the best way to flush the system and whats the best coolant to use? possibly thinkin i could have an airlock in the system?

cheers martyn

 

hi was just wondering if u got your problem with the bubbling water sorted cos im having same problem and im ****ing myself eny help would be greatful

 

i had a simalar problem recently.was losing coolant but could never find where from.special scoobys found that the outlet coolant pipe from the turbo(may have been inlet can't remember which) was cracked.it was evaporating straight away due the heat from the turbo so maybe worth looking for.
best bet is to get the system pressure tested as it could save alot of time trying to trace the leak