running temperature

[Edt]

Recently my 500 is running a little hotter than usual. What shall I hit with a big hammer ?

Ed


(hammer aside, would a full bleed be the 1st obvious step ?)

[Edt]

Yup also sorry Dan.. what you up to now?

Temperature... rarely went above (indicated) 90oC but recently creeping to 93/94 ish & the fans struggle to bring it back until the car gets up to speed again. Will invest in a bottle of Water Wetter (or is it t'other way round) next time passing Halfords

Ed

[Edt]

joospeed said:

Damn . I was going to reply but you beat me to it. yep rude's griff was stunning in france last two weeks, didn't overheat once, proving that if you have a cooling system in good condition you don't need any fancy gizmos to stop it overheating, if it's overheating there's a fault. However, the fans were controlling the temp on the otter switch, rather than airflow through the rad from ram effect, so need to look into channeling air straight into the rad and stop it leaking around the outside and bleeding back in front of the rad when stationary.

When I'm on the move it's OK... its when sitting in traffic it gets above 90. In the good old days the twin fans usualy managed to keep it on 90, but now they're battling as hard as they can & it reaches a few degrees higher

regards
Ed

[Edt]

whilst tinkering last night looking for the bleed screw (falied) stumbled across a bleed pipe (????). Was about 12" long, tucked away by the n/s of the plenum, ending with a jubilee clip. I loosened this clip and coolant level rose in the front reservoir. Or is this something completely different ?

Regards
Ed

[Edt]

ho ! Up it was... will play again tonight
Cheers Peter

regards
Ed

[Edt]

GreenV8S said:

Since the pipe will be higher than the swirl tank, you will need to have the engine running when you bleed it. Otherwise all you're doing is letting air into the system - which would explain the water level going up!

Well have had a further play.. plenty of air rose up from the front reservior. Then I let the car sit running for 10 mins as the fans cut in & out. Temp remained pretty steady so maybe it was as simple as that! Away for a few days now (going to Silverstone to watch the Autocar Sideways Challenge tomorrow!!) so will report early next week

Regards
Ed

[Edt]

After a very pleasant 400 mile round trip this weekend (roof of at all times, natch) the car is running just fine... but still a few degrees higher than I'd like. Added a bottle of water wetter but didnt appear to have any effect. Has anyone else tried ww ?

regards
Ed