Running HOT need help

[Icarus1978 0]

Well got the VR 2 day so thought what the hell take it for a spin, I was only out for About 10 mins got some petrol noticed water temp light flashin so went strieght home.

When I got back opened the bonnet to find the expansion tank spewing and hissin , the fans had been cuttin in and out. Thinking this was a bit strange remembered the second water pump ( small electric thing) found that had been disconected for some reason so reconnected it .Within a couple of sec's the expansion tank was empty , so topped it up and left it to cool down.

So after a few hours took it out again and temp shot up and after 5 mins or so steam from expansion tank again, I havent checked the levels again yet (to late in the day)

Now i have no idea what could be the problem could be apart from 1 ! and i hope it aint that .

If anyone has any idea's please let let me know.

[ashmk3 0]

Erm from what I have read is either head gasket or expansion tank cap isn't releasing pressure.

[ravinloonatic 0]

could be the thermostat not opening properly, slowin the flow of water or water pump, i had same problem bout 2 weeks ago on my vr rado, took the old water pump out and it had 1 and a half of the eight impeller fins left lol water pumps easy to change on these, there is a thread sum where on here bout how to do it

worst case it head gasket, but they aint too bad to change on these engines

[Icarus1978 0]

cheers , I was hopeing (No Praying its not the head gasket) but thats a new one on me the cap at fault.

Thanks

[spadam 7]

Yea try cap and bottle first as the seal around the cap can also go and it wont keep the system presurised and therefore the water boils and steams. about £20 for a header tank and £5 for an expansion tank cap.

[Icarus1978 0]

Nice one thx

[Icarus1978 0]

Nice one thx

[legvw 0]

Well got the VR 2 day so thought what the hell take it for a spin' date=' I was only out for About 10 mins got some petrol noticed water temp light flashin so went strieght home.

When I got back opened the bonnet to find the expansion tank spewing and hissin , the fans had been cuttin in and out. Thinking this was a bit strange remembered the second water pump ( small electric thing) found that had been disconected for some reason so reconnected it .Within a couple of sec's the expansion tank was empty , so topped it up and left it to cool down.

So after a few hours took it out again and temp shot up and after 5 mins or so steam from expansion tank again, I havent checked the levels again yet (to late in the day)

Now i have no idea what could be the problem could be apart from 1 ! and i hope it aint that .

If anyone has any idea's please let let me know.

[/quote']

If the water light was flashing that indicates low water, so where did it go?

When you got home the expansion tank was hissing, which means the cap is fine as its releasing pressure.

I'd check the colour of the oil in your sump, and on the bottom of the oil filler cap. Milky then yes you h/g has gone.

It could be your h/g as its been driven boilling its head off!

[Icarus1978 0]

I hear ya, still dont get why the secondary pump was disconected though and what kind of damage this would cause. i checked the oil cap and there was no mayo there so just gonna do a few more checks first.

[Gazbarber1982 3]

secondary water pump does nothing for the car when it's running. It run's for 15 mins once you turn the car off to circulate the water as it still gets hot on the engine side and cools on the radiator / fans side.

[Icarus1978 0]

Thanks for the info, I guess the garage i got it from havent worked on any VR's before not knowing this and thought it was faulty so just disconected it to stop it running.

[Gazbarber1982 3]

If, when it's plugged in the pump runs for more than 15 mins when the ignition is turned off. The controller (black box with 2 fuses under header tank) is shot. There are around 10 different types of these around so make sure if yours has gone, you get the same part number or the pins on the bottom are in the same place. ((Experience))

[Icarus1978 0]

cheers m8

seems to be ok though stops on its own so should be ok, i will double check though just to be sure. first time ive had the pleasure of a VR6 engine so bit green still but im sure ill get the hang of it all. thnx again

[Gazbarber1982 3]

Are your carpets wet? My heater matrix went twice in a year which aused the tank to empty but the carpets were wet. If your getting steam from the tank it does sound like head gasket has gone and it's expensive to get it fixed properly with genuine parts. I did mine 3 months ago with new chains and guides (there just about fucked) after 100k and saved around £375 with premium membership (£15) best money you'll spend this year.

[Icarus1978 0]

No wet carpets and no sign of any previous problems . Looking through history and the engine was rebuilt back in late 2006 quiet alot of major work new head and bottom end and then in mid 2007 engine was instald back in car 98618 on clock then and i got it with 113105 on it so 15000 miles since rebuild all parts new with rebuild so ive no idea now lol

[ashmk3 0]

Does your exhaust smell sweet and what colour are the spark plugs?