Getting a bit confused on this, story goes that on my volumex engine I have a standard exhaust cam but an OE fiat lancia inlet cam supposedly off a strada/ritmo 130tc. To keep it simple (or so I thought) I have initially built the engine up using standard fixed cam wheels with the intention to substitute adjustables later. That's fine but the more I look the more I find the set up confusing, does anybody know if the dowels in the camshafts are always in precisely the same position (they look to be in line with the number 4 lobe peak but could be a few degrees +/- ) or if fiat achieved precise timing by slightly varying this position, secondly what variation did they use on the cam wheels with regard to the timing holes that mark the tdc timing position? Unfortunately I only have vx wheels (and maybe one ie example) the 130tc cam came without. Until I understand this properly I am struggling slightly, I will fit the adjustables to achieve same current timing at first but need to know what this actually is; on the inlet from my observations it seems that full lift position is a bit out from standard 130 TC (with the fixed cam wheel that is currently in place ) but I need to find a crafty way to identify the full lift position with the engine assembled ( mental note: next time do it with the head off first!)
