i was wondering about those, seeing as heater cor should be copper might be better to use these than brass.

as they are only flanged at one end, have you ever had the hose slip off under pressure? i doubt it but you never know.

also worked out a way to just use 1/2 inch for the pipes, no need to muck around with reducers, so should be a $10 fix all up yay!

I use 1/2" copper pipe fittings for 90-degree bends. Cheap as -- also they come in 5/8 size too.

The 'reducing' style is 5/8 outside diameter on one end.

did find plastic bends but not suitable for hot liquids.

Might try some 1/2 hose as there are heaps of fittings for 1/2 inch and 3/8 available- even brass air compressor fittings for $3 each suitable for hot liquids.

5/8 is a pain of a size.

couldnt find any plastic bends mik?

The Datsun 1200 heater hose is specified as 1/2 inch inside diameter. What is the metric equivalent for that?

Oh -- and it is special thin-wall hose.

does any one have handy the id of the heater core hose? is it 12 mm or 16mm?

cant remember off the top of my head.

there should be a place called purple pig they have all those types of fittings. Pirtek should have some 2. I dont know if you have 1 there but all those fittings come from tubefit here in perth. Hope that helps

nah got the good hose clamps not the cruddy 10 for $2 ones.

just went out and had a play- will get away with 1 t piece and maybe 1 or 2 90 deg bends, depends how forgiving the hose will bend once heater is back in.

Uh oh, Bunnings hose clamps...

Good work dude!