r reg peugeot 106 diesel had pump changed but person never timed the engine up it now running like sack spuds

take it to a mechanic who know what they are doing

You need a manual, Haynes are good, if after reading it looks too complicated take the car to a mechanic.

start the engine then immedeately push start on your stopclock. Count how many revs the car makes in your preffered period of time ( probably 5 mins ) then write it down backwards on a peice of slate.

what?

u have to use special tools or make some up.
under the timing cover u will find that the pump pulley & the cam pulley have holes in them. Put the pins through untill they go into the cyl head.
If l remember its a tud5 engine in the 1500s which means there is also a point at the front of the engine block as u look at it. Open the bonnet & look down past the no.4 injector there should be a hole going into the back of the flywheel.normaly u could ise an drill bit to lock it.
any problems get back to me.

dont mess with timing , take it to a guy who knows what hes doing , or you could make it worse