Cooling System

[Strokerace]

Why does top radiator hose collapse on cool down ?  Thanks

[Sandals]

Pretty sure it shouldn't... got any pics?

Welcome to the club!

[Scoobyghost]

The cheap eBay silicon pipes suffer a lot from collapsing when hot. Not ideal because you don't know what it's doing when you're driving.

[Piggysniffer]

I wonder if you have a blockage from the overflow tank so that when it cools and tries to draw water back into the system it can't so the hose collapses (if that's how it works)

[Tidgy]

As above, shouldn't do

[Gambit]

Certainly should not be collapsing. 1st thing I'd look at is the radiator cap well I'd get a new one I've heard if the spring and disc under the cap should push down when there is pressure in the system once this stops it starts to collapse the hose. 

probably cheapest and easiest place to start anyway. Borrow one if you know anyone local. 

[Mark D]

^^try the pressure cap, some have a pressure reading on there. Keeps the system up to that pressure and if it goes over, it goes to the overflow. Under pressure and draws it back

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