I changed all the hoses. Especially the one which goes from the oil filter to the back of the block. That one kena kembang kow kow because my engine oil leak and the oil soften and expanded the hose. I had 2 leaks and decided to change all lah. Once in 14years ok what.
out of curiosity, how many out there (in Klang Valley / Malaysia) owns an olskool Z S30 (240z-260z-280z) and S130 (280zx) ... ZTH member would be better