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[ajsphead]

Not on the Omega but on my Corsa. Coolant pipe from top of water pump to throttle body on a batch of 1.2s was joined to the water pump housing via a plastic connector which fractures. It's a threaded fitment and has sheared off flush to the housing. It looks like an M8 thread.

Suggestions for the safest way of removing it without stripping the whole of the front of the engine off ?

Thanks

[Matchless]

Try increasing the hole size with a drill then tap in a torx bit and use that to unscrew the remains. I found I had to go to the maximum size drill bit and torx driver before the corrosion let go of the remaining plastic.
A hose down the header tank before you screw in the replacement fitting seems to flush out any remaining bits of plastic swarf.

[andyc]

Hi mate

There is a TSB out for this. PM your email and I'll scan them and email over with the part numbers for the updated parts
Cheers
Andy