[mike1967]

could be oil pump as rotors are fairly long so bit like a diff on a car can whine, worn out cam shafts can make a noise as well, also if with gearbox and clutch area thrust bearing seen them to do it if go faulty ie dont return all the way back so always pushed on fingers of clutch pressure plate, also input shaft on gearbox would check oil levels also engine running get someone to pressure clutch pedal and release listen for big changes in noise, or banging noises dmf or even clutch pedal pumping with foot on peddle half way or light pressure on it are signs of issues

 

[mike1967]

its auto box they whine with age getting oil level checked or better still change the oil on box anyway. might find the noise is travelling along the crankshaft as such form gearbox.. jack car off road on axle stands and run in drive at revs it makes it worse at then listen to all the different places see where it sounds loudest.

 

[mike1967]

pump should be smooth fairly easy to turn have seen on some failures where run low on oil or dirty oil will hurt them, as for chains they tend to just about do 120k ie couple of timing chain changes, if were my car i would also stick a new timing chain on it at same time for piece of mind

 

[mike1967]

Thanks again Mike and just to close out this thread for the next guy. Fitted a new oil pump and chain and problem solved - no more whining from the sump. Old pump had bits of a previous tensioner guide rail jammed inside the intake too - not enough to restrict flow but shows engine has had a failure in the past and may have run low on oil.

thats in keeping with its had a chain failure at some point and so one did not remove the oil pump and clean it and the sump and crankcase out