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[tooleater]

 Apart from the obvious is there anything else that could cause constant vapour from exhaust even when hot.water pump has gone,but no mayo on cap or dip stick,is also fitted with sports pipes..2000 30ltr man MV6.
Thanks John
Obvious= Cylinder Head

[PhilRich]

John, my Omega chucks out 'steam' all the time it is running regardless of the engine temperature, they ALL do mate! You have a lot of exhaust pipe between front & back & the lump generates a lot of water vapour on the journey through the pipes. If you want a reasonably definate head gasket diagnosis then remove the plugs one at a time when the engine has been stood overnight & is cold. dip a piece of rope, pipecleaner, stick with a cotton bud tied to it, anything that will show wetness if it is there in the bore. The only thing to cause wetness in a cylinder bore after it has stood overnight is water, so you should have a fairly conclusive diagnosis? HTH 

[tooleater]

Thanks for that Mate,i will give that a go,but do you think i get someone to replace the water pump,not a chance stopped off on way home from work to night,to private garage,not very big but only deals VXs,when i mentioned v6 omega,said sorry too complicated  :-?..
Sorry Mate have sign out again !wife wants to go somewhere in our lovely van 
Cheers John

[TheBoy]

Water is a by-product of the combustion process. In cold temps, it condenses quicker, making it seem worse.

[Andy B]

..... when i mentioned v6 omega,said sorry too complicated  :-?..
 .....

I came acroos the same response years ago .....
A water pump isn't difficult to do, no special tools required. 

[Kevin Wood]

..... when i mentioned v6 omega,said sorry too complicated  :-?..
 .....

I came acroos the same response years ago .....
A water pump isn't difficult to do, no special tools required. 

Which means if you come across someone who says it's "too complicated", RUN.

Kevin

[duggs]

As mentioned John, I'm sure you're worrying unnecessarily.  My mechanic changed the water pump on my V6 within the hour.."Simple job on these" was his comment.

[Andy B]

..... but do you think i get someone to replace the water pump,not a chance   .....

If you're anywhere near me, bring me a pump & I'll do it for you.