fiesta rs turbo oil leak and boiling water

[cra1gy1989]

Anyone any ideas? The leak looks like its coming from between the engine and gearbox.. and can hear the water bubbling.. oil leak looks like its coming from the bottom half of the engine, but why would the water be boiling? Thanks for your help..

[Krikkit]

Sounds nasty, any drop in coolant? How severe is the oil leak? If you can hear bubbling/boiling that really doesn't sound good.

[morgrp]

boiling/bubbling usually means the cooling system is either not running at the correct pressure i.e. there is a breech/coolant leak or it is pressuring i.e. a head gasket has blown. The water will always naturally boil in the hottest part of the engine - this i have found is normally at the top of the head - first thing to do is check the expansion tank for pressurising - remove the expansion tank cap then replace it, start the car from cold, give it some revs, shut it off and immediately release the expansion tank cap and listen for a hiss - if you get one the system is pressurising and could be indicative of a head gasket failure. also check the expansion cap for cracks - they are an important part of the cooling system and allow it to bleed off pressure at certain Kpa - a faulty one will not allow the system to reach it's operating pressure and cause boiling in the head

[cra1gy1989]

Thanks for your replies, not loosing coolant, no oil in coolant, oil leak is very bad, dripping from between gearbox and engine, can't really tell where from exactly as its flicked all over everything, the boiling noise is coming from the rad, both pipes on the rad are hot, and pipes still squidgy.. So possible hg failure? How would I be able to check that for a definite? Cheers for your help, its much appreciated!

[hman]

Check the breathers aren't blocked- sounds like the crankshaft oil seal is leaking if the oil leak is between gbox and block.

This could be due to the oil breathers being blocked - or over pressurisation of the oil ways through hg fail.

Cvh engines are prone to hg especially in older cars .

I would try a coolant system pressure leak down test also.

[cra1gy1989]

Bump, advice much appreciated!!