LOOSING WATER HELP!!!

[VR6_ROB 0]

hi all need some advice before i rip my engine apart

i have a 2.9 vr6 engine in a mk2

its been in just over a month

now when i drive steady the water level is great does not move

but if i drive it hard its loosing water i cant see any leaks anywhere

but i noticed the hoses go really hard full of pressure

i been told it could be headgasket issue?

the oil and water are not mixing so i was just wondering if it could be something

stupid or if anyone has come across this

help would be appreciated

cheers

rob

[M4VTY 0]

Either a head gasket or your thermostat get's stuck open. try changing the thermostat that's the chaper option.

[VR6_ROB 0]

I have just changed that few weeks ago but it was doin it before then

[MaidenVR6 26]

When your water pump is finished, it starts to leak water. Check that. Remember that the water system on a VR6, is a common problem.

[craggsy 91]

If you changed your thermostat did you crack the housing putting it on. As it won't leak under pressure but will when stationary

[VR6_ROB 0]

it leaked before the thermostat was fitted

they is no signs of leaking when it is stationary

i can plod about normal and it will be great

as soon as i hammer it the water goes down

would the pump leak under pressure?

[mannie 0]

How much water are you losing ? And you have replaced all the seals in the thermo housing ?

[rodney 17]

You have a couple of options really.

Does it happen when you rev or when under driving load only???

Does the water level in the expansion tank alter as you rev it???

What I am trying to understand is if you have a blockage (maybe air) somewhere which could be working its way out.

Or if you have a pinprick somewhere on a hose or gasket which causes the leak under pressure. Usually if it is things like the water pump it is very obvious as a leak under the car.

Don't forgeet to look at the connections into the heater as well as they flow through that way also.

The very solid pipes does hint at the pressure building and remaining.

Hope it helps

[gloster 0]

A look at this thread may help you, as this all sounds terribly familiar to me...

http://www.vr6oc.com/e107_plugins/forum/forum_viewforum.php?119

[VR6_ROB 0]

it only leaks when driving hard the hoses are rock hard

i have emptied the water twice and bleeded it

does not looses a drop when i drive about normally

not sure on the water level moving when reving it

my top and bottom rad hoses are not the right length

they are to short so they is a pipe inside with another piece of hose attatched all jubilee clipped up

the bottom hose has popped off before and it was leaking there the other week so i refitted it

i have samcos on order

the link does not work

[gloster 0]

http://www.vr6oc.com/e107_plugins/forum/forum_viewtopic.php?153370

I must've got the wrong link... try this one.

[rodney 17]

you have a PM VR6 Rob

[Giles 0]

Try checking your water pumps dude. I have the exact same symptoms (losing water, rock hard hoses, etc.) and both of my water pumps (electric AND mechanical) are goosed. It's in on Monday for new items.

Take off a coolant hose and see of there's any water flow with the engine running.

Hope this helps...

Giles.

[VR6_ROB 0]

you have a PM VR6 Rob

I dont lol

i have changed the electric pump a few weeks back as mine was goosed

would the water not leak everywhere if it was the pump?

in a way i hope it is the pump as its easier to do then a headgasket i think

is they any signs of them breaking

[VR6_ROB 0]

i fitted my samcos and the pipes aint pressured up like before and nothing is leaking

strange