Overheating

[Richiekook]

Hi guys,first time post .just bought my first t25 after t4,s and t5,s,hmmmm a sensible move? Lol . Anyway my van is overheating we think its either the water pump or the Dalek head on expansion tank ,anybody know of any other likely culprits.thanks guys

[itchyfeet]

faulty thermostat, blocked rad, blown gead gasket, not enough coolant, faulty guage.

What are the symptoms?

[R0B]

Can i just point this out to you fella..viewtopic.php?f=24&t=114625 Oh and welcome to 8090

[Richiekook]

Symptoms are drastic over heating, water doesn't seem to be going from chamber behind the cat flap to the upper chamber on the right of the engine bay. But the hoses are hard when engine running, that says to me it is pressurised. I have bought a new Dalek head from brickwerks. Hot air is still getting to the blowers in the cab, so does that mean water is still being pumped through the system? Thus ruling out the water pump. In fact I keep coming back to head gasket, But stop me if you think I'm wrong !

[mark]

when the coolant/engine is cold fill the tank in the engine bay to the brim and follow this
http://www.brick-yard.co.uk/forum/bleed ... 29710.html

mark

[NicBeeee]

Is your rad getting hot

[AdrianC]

water doesn't seem to be going from chamber behind the cat flap to the upper chamber on the right of the engine bay.

Why do you say that? Is the main header tank (inside the bay) full? Water should only flow from expansion tank to header tank when there's lower-than-ambient pressure in the header, sucking coolant across. It should never go back, so that expansion tank should be cold (or, at least, only warm through radiant engine bay heat).

Hot air is still getting to the blowers in the cab, so does that mean water is still being pumped through the system? Thus ruling out the water pump.

Yes, but it says nothing about anything else. The pump may be working (which you can see easily, anyway - the belt's spinning the pulley for it) but the 'stat might be jammed closed. The rad might be blocked.

What's the rad doing? What's the temp gauge doing? What's the cooling fan doing?

[California Dreamin]

Symptoms are drastic over heating, water doesn't seem to be going from chamber behind the cat flap to the upper chamber on the right of the engine bay. But the hoses are hard when engine running, that says to me it is pressurised. I have bought a new Dalek head from brickwerks.But stop me if you think I'm wrong !

STOP

The Darlek cap 'seals' the system and allows the hot expanding coolant to pressurise the system AS IT SHOULD

If the hoses DIDN'T get hard there would be a problem, NOT the other way round.

Martin

[California Dreamin]

So.....your van is overheating....please explain the symptoms as a simple 'statement' doesn't give us the information we need to give you good advice.

Things like:
What is the gauge doing, how quickly does it move to overheating, are you getting any flashing lights?
Is the radiator fan cutting in and at what point?
Is the radiator hot?
Under what circumstances does it overheat? standing idle/driving at speed etc.
Are you loosing coolant? can you see a leak?

You see..simply saying 'my engine is overheating' what do you think it could be.....isn't enough to go on.

Martin

[Ian Hulley]

By

the upper chamber on the right of the engine bay.

may we assume this is a diesel

Ian

[AdrianC]

By

the upper chamber on the right of the engine bay.

may we assume this is a diesel

In another post from yesterday, they say it's a 1.6 non-turbo, yep. But, in that same post, they say the HG's definitely gone - and the head's half way off already... And that thread was started before this one.

<baffled>

[Ian Hulley]

In another post from yesterday, they say it's a 1.6 non-turbo, yep. But, in that same post, they say the HG's definitely gone - and the head's half way off already

Oh dear Thanks for that Adrian.

In which case ..

Hi guys,first time post .just bought my first t25 after t4,s and t5,s,hmmmm a sensible move?

Nope I'd 'just' be taking it back to the vendor for a refund or discount.

Ian