Engine Ticking Noise, Lifters/tappets Or Injector/s?

[mrben]

Hello all. 99 diesel mk1, my engine has started ticking on tickover. I can rev out of it when its just past 2000 rpm. I think it might be the lifters, are they hydraulic?? Shame, cause I change the oil twice a year, and it doesnt lose a drop, so will be cheesed off if top end is starting to go...do injectors make a tapping noise when they are on there way out? Thanks.

[marinabrid]

our 98 tdi AFN engine has ticked as you describe for the last 8 years,  never seems to cause a problem with oil use or anything done 152,000 miles now.

[mrben]

ok thanks for reply. Does your one rev-out of the ticking?

 

Thanks.

[marinabrid]

i think the ticking just gets faster the more you rev it but its hard to tell as the engine noise gets louder , like you i always do regular oil change and keep it in tip top shape,  think it must be age/wear related   but it don't seem to cause trouble of any kind,   I'm sure there must be other high milers out there with something to say ?

Edited April 29, 2014 by marinabrid

[mrben]

Ok, thanks. Yes I thought there might have been a way of removing top/cam cover and somehow servicing the lifters. A squirt of teflon or something...but I think its a case of a new set, which is timing belt off etc, so unlikely to happen :)