Quote Originally Posted by geezer101 View Post
Check the timing belt - watch what the cam gear and valve train are doing while trying to rotate it over. The worse thing that should happen to these heads are a blown belt - they are a non interference engine which means the valves are safe if the belt blows (they can strip teeth and appear to be functioning normally at first glance) A belt swap on these engines is something a noob mechanic can tackle with some online guidance/reference. If you have catastrophic damage to the head I'd swap a 4G64 head onto it and add an electric fuel pump. This will eliminate the jet valves. New heads are available for the G63B engine and they're pretty much all from one or 2 sources. Any other head swap will take a lot of thought. 4G63 twin cam is designed for EFI and has a CAS on the head to run the ignition system. The intakes and exhaust manifolds are completely different to the single cam head and will need to be added to the retrofit. Not a straight forward job but can be done. Beyond that, you have 4G63 engine swaps and you will need all ancillaries and engine management to run it (not a job for the uninitiated...)

Thank you Weezer, you are correct in that the timing belt will look fine at first glance. It was stripped around the crankshaft, when I was able to get the belt turning the camshaft and rotor were turning until the belt made its way around to the crankshaft again. I will order the belt and keep you posted. I am so relieved to find out this can be an inexpensive fix.