still trying to figure out exaclty what is causing the never ending tappety noise on my saph, stripped the head off and checked that i have oil flow through the block, removed the dizzy and put a drill with socket on the end down to the pump drive, all 3 oilways have a even flow, some tiny air bubbles were present but it didn't make me concerned. it's always had decent enough oil pressure, 70mph on the motorway it's always had roughly 4 bar pressure.

today i decided to take the lifters out and bolt the head back down so i could repeat the procedure checking the flow through the head, well, i'm not really sure what to make of it all, the oil is more or less spitting up full of air bubbles and the lifters on 3/4 seem to be getting hardly any oil through them at all. took a couple of videos so would appreciate some input.





could it just be the drill isn't spinning the pump up fast enough? unlikely i'm thinking

could it be a restriction in the head? i'm not convinced anymore as the oil flow through the turbo oil feed pipe is also start stop.

should i just stop kidding myself and get the bottom end out and get the oil pump out?