Thread: Help - D2 V8 water coming out of spark plug hole

check thermostat is opening. put it in a pot of boiling water.

I don't think there's any water galleries in the centre cylinders, so I would guess either shifted liner or cracked block.

Might have to pull the head , it really needs to be pressure tested, but yep could be liner , unfortunately
Eevo , something tells me its more than a thermostat problem

Yep I had the heads persurer tested when the heads were off and a new thermostat fitted then, does sound good.

whats involved with repairing or replacing a liner? is it a motor out job?

take the heads off, wrap them up nicely, throw the block in the bin.

Originally Posted by chooky33

Yep I had the heads persurer tested when the heads were off and a new thermostat fitted then, does sound good.

whats involved with repairing or replacing a liner? is it a motor out job?

yep. unless your willing to do most of an in frame rebuild and call in someone with some very special very expensive machining gear.

my advice is follow pedros advice, get a better cam stuck in while you're at it.

Originally Posted by chooky33

Yep I had the heads persurer tested when the heads were off and a new thermostat fitted then, does sound good.

whats involved with repairing or replacing a liner? is it a motor out job?

It's a motor out job. Only thing you can do is get top hat liners installed, though the state the block is in now, it may be beyond that.

Originally Posted by discorevy

Eevo , something tells me its more than a thermostat problem

thermostat problem will give you a flow issue and make it impossible to bleed.
if your suspecting a liner issue, pressure test the cooling system. it may help