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[hawke113a]

just bypassed the matrix....by joining the to hoses at the bulkhead.....done the usual burp and refill...but its still overflowing at the expansion tank(when cap is off).....just seen a trace amount of mayo on the filler cap but putting this down to condensation due to car been stood a few days.....any one throw any ideas my way please....

[05omegav6]

Mayo on the oil cap or the coolant cap?

If oil cap, nowt to immediately worry about.
If coolant cap, change the oil cooler before it fails completely 

[flyer 0712]

Trapped air in cooling system ?.

[dbug]

As Al says above - any trace of "mayo" in cooling system or on coolant cap indicates failing or failed oil cooler - replace asap

[hawke113a]

soz guys...mayo in oil filler cap.....the tank is clear as is the coolant....

[05omegav6]

Good stuff one less worry, but keep a close eye on it

[dbug]

soz guys...mayo in oil filler cap.....the tank is clear as is the coolant....

Normal, paricularly if you do short journeys

[omega3000]

just bypassed the matrix....by joining the to hoses at the bulkhead.....done the usual burp and refill...but its still overflowing at the expansion tank(when cap is off).....just seen a trace amount of mayo on the filler cap but putting this down to condensation due to car been stood a few days.....any one throw any ideas my way please....

My monies still on partially blocked rad 

[hawke113a]

rad is heating up nice and even.....

[omega3000]

Ok    JUst saying as we had a 100 page thread trying to fathom
my old elite .. ripping our hair out checking this an that then in the
end it was blocked rad making the coolant system overheat pressuring the header tank...
Jamescdx will remember it well 

[05omegav6]

First up, when you heat summat it expands and if liquid, will boil.
So if you heat the coolant it expands and ultimately boils.
If it expands with the cap off it will overflow.
Put the cap on and heat it up, it cannot go anywhere, and therefore pressurises the system.
This pressure increase raises the boiling point to about 110°c, which makes the coolant more efficient as it prevents it from boiling off in normal running.

If your car is actually overheating, then the first thing to look at is whether the fans are all running or not. If they don't operate as expected then that's where you need to start

[hawke113a]

cheer taxi al....the car doesn't overheat but can get rather warm....and all the fans are working...so maybe its just me panicking over nothing

[05omegav6]

Depends on the type of driving you do, but in traffic they can get a bit toasty... the 3.2 needs a couple of hours to cool down before you do any serious spannering otherwise you stand a good chance of burning yourself on summat

Don't forget, it has been quite warm the last few weeks