ive got a ticking noise ive been trying to silence!! 1st suggestion was outlet manifold gasket so i had it changed still ticking
then i read tappets, and a friend has suggested flushing the engine and then changing the oil filter also its been suggested timing belt?
so ive decided to find out by process of elimination with the cheapest options 1st. but as im reading up on it ive discovered that many older engines and high mileage engines can suffer severe after effects
any info ?

The BEST Flushing fluid for engines IMHO has to be FORTE Engine flush, it is superb.

In fact when I had my old engine apart a while aback a mate said 2shove 2 bottles in drive 10 miles drive home empty oil"

I did - and when we stripped the engine I was stunned how clean it had got the internals - like they had been chemically cleaned.

SO, the answewr is a definate "thumbs Up" Except.......

You MIGHT just find having removed all the varnish carbon and deposits that if the engine is well worn all that goo inside was infact your 2Tolerances and clearances" and, with all that removed the engine may be just like a rattly worn out needs a rebuild engine

Your call, you know what your engines like

HTH

Nige

What engine is it?

I don't see what engine you have, if its the timing belt in a 300 tdi get it done before you go much further. You may be able to get some idea, the 300 has a hole in the bottom of the timing case cover and if you get under and shine a torch in, if you see threads and dark rubber powder from the worn belt you want to get it done ASAP. I have changed mine 3 times on my 1996 300 TDI and its fairly simple if you take care and do it by the book.

I would not flush the engine to get rid of a rattle, I think it would only make matters worse, if its ticking in time with engine revs it could be tappets, an alternator bearing, or even the serpentine belt the belt slipping a little can sound like a tap or tick or squeak drop a few drops of water on it and see if it goes away.

Bob

well heres a thing its a 2.5 turbo diesel 1990 station wagon and bcos imnew to all this i cant say any more then that so... im not sure what engine but id love to know how to find out?
kill 2 birds with one stone so to speak.

If it's 1990 it's probably a 2.5TD (as opposed to the later 200TDi, 300TDi, TD5...), they're not overly loved but work well enough. There endeth my knowledge of LR diesels, apart from to say I thought your engine had a timing chain not a belt, and that frankly they're noisy rattly things at the best of times

so ...this chain is it possible that its causing the noise? is it adjustable?

all 4 cylinder diesels of 2.5 litres have a rubber timing belt, the engine code for the 2.5TD is 19J.

maybe the valve rocker gap needs adjustment or the valve cap shims have broken or moved out of the recess they sit in on top of the valve spring retaining caps.

its a TD - so it could be a holed / cracked piston...
sorry, i'm not in the cheeriest of moods today.

You can normally identify roughly where the noise is coming from - head - (front or rear - rockers, tappets, rocker shaft, sticky valve, broken valve spring), bottom end (really only oil pump, big ends, mains, crankshaft end float), top of the block (cam bearings, cam end float, small ends, piston slap)
Downpipe to turbo join makes a ticking noise if it leaks (look for sooty deposit), exhaust gasket will make the same noise. Other 'ticky noise' things are vaccuum pump wear, worn inj pump internals, Lift pump foot pivot worn, worn timing belt tensioner, crank sprocket guide edge, loose bolt/nut, compression loss from headgasket failure to the outside.


Les.

I can't see how flushing the engine is going to help cure the tapping noise ! I would have suspected valve clearance issues, when were the valve clearances last checked ? If your friend is knowledgeable, ask him to check them for you.
HTH
Mo

I would not use flushing oil in an engine other than one that has water contamination resulting in emulsification of the oil.
The possible downsides as mentioned in previous posts far outway the advantages . The basis of using flushing oil to get rid of tapping/ticking is generally as a result of it being used in engines with hydraulic cam followers(lifters)where the removal of carbon/varnish gives them a new lease of life. JMHO

boy am i baffled
i started feeling really confident early in the week now im just plain scared.
i know nothing of the history of this vehicle and all i can say is its got a new lift pump,new injection pump,new exhaust, out let manifold gasket,trackrod ends,and new bushes all round.
those are the things that i personally changed(well i paid to have done) ive driven over 600 miles in it recently bringing it here and it seemed fine but i still wanna locate and correct this noise if i can.