Hello. I have a 1990 300ZX Z32 none turbo. Its my pride and joy. However on my last day out, i overheated with a burst radiator, She just wont start. Shes turning and there is no contamination of the oil. i have replaced the PTU with a brand new unit which made no change. I need a competent mechanic in Northern Ireland that knows there way around a 300zx. Any body any recommendations. Many thanks in anticipation.