Loosening Bolts

[Jeff J]

I need to replace the water pump to cylinder head pipe on my 1.9 water-cooled engine. Is it better/easier to slacken the bolts on the head with it warm/hot or cold, or does it make no difference. I don't fancy shearing the bolts or damaging the head. Thanks.

[itchyfeet]

there are studs into the block, try some plus gas on the nuts first but usually not too rusty due to their location

[Jeff J]

Thanks, do I take it hot or cold makes no difference?

[Ian Hulley]

there are studs into the block, try some plus gas on the nuts first but usually not too rusty due to their location

As the man says

I used this to extract a broken exhaust stud in conjuction with cobalt drills and easy-outs ...



It shrinks the metal and breaks the bond.

Ian