removing steel pipe from cast alloy waterpump housing

[Munki]

Hi all

I am converting a 20v to rwd in my ke70. I need to modify the water bypass pipe. I.e. take the interference straight steel pipe out and put a bent one in.

whats the best way to do this? break out the oxy? or chuck it in boiling water?

cheers

Daniel

[stidnam]

Be very careful if you use the oxy as I did this on a different water housing and while it worked for 3 of the pipes it is very easy to melt the alloy as it doesn't get red and give you warning. I melted it on the 4th pipe I was getting out.

Still worth giving it a try

[LeeRoy]

Or if you dont need the pipe then hacksaw or die grind it from the inside then fold it in on itself and out it will come.

[rick q]

Why not just leave the straight piece in place, and add the bend to it using a short piece of radiator hose - that's how I did mine - though it won't work if you're leaving the standard curved cast pipe from the cylinder head in place