Hello, I daily a series and have been having a knocking problem for a few months now and can't seem to find the problem. The noise it the worst when cold and it vibrates the gearstick and make a very quick knocking when driving and is only really there when uphill and in 3rd or 4th. I have replaced the whole ignition system and timed the car to tdc which is factory spec for a 1979 3 main bearing peteol. Please could I have some advice on what else could be causing it thanks
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