Overheated!

[danhutton]

Its just overheated! I had a small piece of water hose replaced, refilled water and coolant a seemed good! Drove about 20miles at 90oC, got stuck in a bit of traffic, hit 95oC and all went wrong! Opened the bonnet, no obvious pipe splits, cap hadnt popped off! My thought is that I have overfilled the pot - what level should this be normally as Ive had different opinions so far!
Ta.

[Big Al.]

If your talking swirl pot the to the top!

If your talking expansion tank then about 1/2 way. IIRC

[GreenV8S]

I suspect the system wasn't bled fully after filling. It can be quite tricky to get all the air out and it's quite common to still have an air pocket hundreds of miles later.

[danhutton]

GreenV8S said:

I suspect the system wasn't bled fully after filling. It can be quite tricky to get all the air out and it's quite common to still have an air pocket hundreds of miles later.

Bit of a silly question- but do I need my heater connected to bleed the system, only asking as I have bypassed mine after it started leaking! Doh!

[danhutton]

danhutton said:

GreenV8S said: I suspect the system wasn't bled fully after filling. It can be quite tricky to get all the air out and it's quite common to still have an air pocket hundreds of miles later. Bit of a silly question- but do I need my heater connected to bleed the system, only asking as I have bypassed mine after it started leaking! Doh!

[tobeee]

Are the radiator fans kicking in? One of mine stopped last night (faulty connection? fuse? Not sure yet!) and it gets hot very quickly.

[GreenV8S]

You don't need to have the heater connected to bleed the system, but put the heater controls on 'hot' to ensure that the valve (if you have one) in the heater water feed is in the open position. Also make sure you bleed the radiator as well as the engine!