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Draining coolant

steeley

steeley

PCGB Member
Member
Decided to give the 2.7 a full cooling system flush and treat it to some new coolant today, but I need to drain the block
and can't seem to find that pesky engine block drain plug. Is it at the back or front of the engine?

Drained the rad by yanking the bottom hose, but there is another 5 or 6 litres in there somewhere...

cheers,
Ian
 
There is a drain at the bottom of the radiator on the left hand side, blue coloured about 13mm in diameter with a Phillips head.
Alasdair
 
I know Clark's garage shows the block coolant drain plug, the other option is run the car briefly and pump all the coolant out vi the water pump, undo the hose off the pump, then remove the thermostat and run for ~ 2 mins. This should pump all of the remaining coolant out.

Chris
 
Thanks for the speedy response chaps-
Saw the pic at Clarks Garage, but I can't seem to see that plug.
Might try running it as you suggest Chris.
Looks like I'll have a busy Sunday....

cheers,
Ian

 
Don't forget to remove the cap from the overflow tank to break vacuum and when that's done - crack the air bleed screw on the top of the engine. With the system open top and bottom you should get most of it. Then jack up the rear of the car 6" or so - that should get the rest....
 
If youre are going to run it, might be worth flushing the system with some tap water briefly before putting in the new coolant ?
 
I've heard the 944's can be a pita to bleed properly when changing the coolant - is there a trick to this? Been tempted to do mine this winter but the fear of getting an airlock somewhere in the system gives some concern. (sorry not trying to hijack the thread but interested in the OP's plan/process to bleed. Cheers!
 
Fill up with coolant and have the nose pointing upwards either on an incline or jack up the front this puts the bleed point at the top, remember to have the heater set to hot so as to avoid air pockets in the heater matrix.
Jim.
 

ORIGINAL: Frenchy

Fill up with coolant and have the nose pointing upwards either on an incline or jack up the front this puts the bleed point at the top, remember to have the heater set to hot so as to avoid air pockets in the heater matrix.
Jim.
Click to expand...
thats a good idea...jacking the front up , i did mine last winter and it took a long time to bleed .
 
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