Woohoo, so picked up my first Z32 in 10 years this weekend, done about 150 miles and already the heaters gone cold with bubbling matrix when the ignition goes off. Went to burp the coolant today and the radiator just sucks dry by a 3rd every 3 minutes. So I take a peak underneath - drips pissing out from all over the shop underneath the engine. Now there's no white steam coming out the exhaust, and rad cap is clean so I'm hoping it's nothing more than a few buggered hoses.

 

I've read about the coolant bypass mod so I plan on doing that this weekend - anywhere I can buy a full compliment of silicone or new rubber coolant hoses to nip this in the bud?

I use a good quality 8mm id silicone hose.It does not have to be braided inside.Be sure to use the Nissan cooling line spring clips to attach them.Jubilees are no good.The spring clips keep constant pressure on the hose so contract and grip if the hose diameter shrinks over time.