Mine jazz has been tapping for a couple of months.
Just sounds like a single tappet so I did the tappets and all were out of spec so I adjusted all to the minimum and re checked. Started it up and sounded exactly the same.
Can the rocker arms wear on the shaft they are on or can the roller wear on the cam. It’s definitly just one tapping but the gaps are all good.
The rattling seemed to coincide with the time I put castrol magnatec oil in (5-40) could this have damaged it? I usually use Mobil stuff
It’s starting to sound awful but it does go away once the revs go over 1500. So I was wondering if it’s might be the oil pump not working at low revs
Tapping and knocking from engine can be devilish hard to track down, mechanics will use a stethoscope or long screwdriver (put your ear on the handle and the pointy end on various parts of the engine to see where noise sounds loudest).
I doubt that Magnatec will damage your engine, I have used nothing else for many, many years and very big mileages with no problem. New oil can sometimes clean out dirt that was sealing bearings (that is why flushing oil can cause problems), check your spark plugs also does your car lose coolant ? if coolant is getting into combustion chamber it can cause knocking (and sometimes white smoke from tailpipe).
Do you have a trusted local mechanic who can offer help ?
