My latest Guess - water Pump?? 94 850 Turbo

[UnderCoverG]

Ok,

I've tried a few different things, with the latest being replacing the
thermostat. Filled expansion tank back up with coolant, and observed the
leaks. I notice on the passenger side wheel well coming from the assorted
belts I am leaking coolant. Could this be my water pump?

Also...I drove it for maybe 500 yards and returned to the drive way. THe
expansion tank was steaming and a lot more coolant was leaking (I'm assuming
the from the expansion tank)

All ideas are greatly appreciated.

'94 850 Turbo

 

[Stewart Hargrave]

From a point at sea, to the circles of your mind, this is UnderCoverG:

Ok,

I've tried a few different things, with the latest being replacing the
thermostat. Filled expansion tank back up with coolant, and observed the
leaks. I notice on the passenger side wheel well coming from the assorted
belts I am leaking coolant. Could this be my water pump?

Also...I drove it for maybe 500 yards and returned to the drive way. THe
expansion tank was steaming and a lot more coolant was leaking (I'm assuming
the from the expansion tank)

All ideas are greatly appreciated.

'94 850 Turbo

If you are losing water from the expansion tank, it could be that you
simply need a new cap for the tank - the cooling system operates under
pressure, and if the cap's pressure valve has failed it may be letting
water escape.

However, it could also be a sign that the head gasket is gone. If this
happens the cooling system becomes over pressurised by pressure
leaking in from a combustion chamber. This simply forces water out of
the cooling system under a higher pressure than it normally operates
at. In bad cases it can lead to burst hoses and split radiators.

When the engine is fully warmed up, try squeezing one of the radiator
hoses. You should be able to squeeze the sides together under firm
hand pressure. If it is tight like a drum it is over pressurised.


--

Stewart Hargrave

A lot faster than public transport


For email, replace 'SpamOnlyToHere' with my name

 

[Mike F]

Ok,

I've tried a few different things, with the latest being replacing the
thermostat. Filled expansion tank back up with coolant, and observed the
leaks. I notice on the passenger side wheel well coming from the assorted
belts I am leaking coolant. Could this be my water pump?

Also...I drove it for maybe 500 yards and returned to the drive way. THe
expansion tank was steaming and a lot more coolant was leaking (I'm assuming
the from the expansion tank)

All ideas are greatly appreciated.

'94 850 Turbo

Unfortunately the only thing that pressurizes the cooling system that
fast is a leak from the combustion chamber. Usually this means a head
gasket has failed or a warped head.