the_pooch

Hello I've just bought a forged hatch. On the way home I noticed the temp gauge jump up. I pulled over and it's dumped the coolant everywhere. Rang the guy he thinks it's an airlock as he changed the tank yesterday. Could anyone shed any light on this? I'm dreading head gasket. Many thanks Josh.

peter zippy reid

iTrader: (25)

Could be airlock or worse case hg failure

peter zippy reid

iTrader: (25)

Did you ask the reason for changing tank

peter zippy reid

iTrader: (25)

Use this method copied from alcazar
Use a decent quality anti-freeze, as at a motor factor for one suitable for an alloy engine and having anti-corrosion added. Dilution is usually 50/50.

Replace plug or bottom hose!!!

Remove the rearmost pipe from the metal header tank on top of thengine, remove the cap from said tank. Jam a funnel down that hose and fill SLOWLY via the funnel, do NOT allow it to gulp.

Watch for the header tank to fill, once it reaches the top, remove funnel and replace that pipe.

Now, with cap still off, start engine and allow to warm up until fan comes on. Watch for bubbles, top up or mop up as necessary.

Once fans start, switch off, replace cap, drive round block, leave to cool.
When cool, remove cap, check level, top up if necessary, replace cap, job's a good'un.

It takes a while, but bear in mind, THERE IS NO KNOWN WAY TO BLEED THE SYSTEM IF YOU

ossett2k2

iTrader: (9)

Any hard driving before it happened?

the_pooch

no I took it very easy on the motorway and thanks Peter I'll try that tomorow.

LUCIFER ARAI

If the cars engine bay warm when you went to view/ buy it?

If yes then youve just had your pants taken down

the_pooch

Nope the car was stone cold. He took us for a test drive a few days ago. The guy seems very genuine and I've researched the car. But it does seem its only losing coolant on boost. Is that defo head gasket ?

LUCIFER ARAI

Yes

Hope only airlock but I say problem there allready

Seller will ho halv3s on the repair bill make yo7 feel better and he have rid of hi# problem

Make self feel better and think seller done you fawor he good man




I no trust anyone gudluck

edsel

iTrader: (2)

Subaru cooling systems are notoriously hard to bleed, if the header tank has been changed recently my money is on an air lock assuming that it's only leaking from the cap.
If it's a modified car and runs high boost it might need an uprated header tank cap.