Member Since: 12 Feb 2021
Location: London
Posts: 141
Tappet? Timing Belt? What could it be, knocking?
Have had the timing chain & cam belt changed but still have a tapping, ticking noise.
Centre says to drive it for a little bit and it should quieten down...
It does seem to quieten down ever so slightly after engine warms up but still noticable next to walls and parked next to cars.
Been recommended an oil pump change also if the issue doesnt go away.
Member Since: 30 May 2013
Location: Southampton
Posts: 280
hi kim0785b
as a non expert it sounds like a injector seal has failed. (little copper washer at the bottom of the injectors)
Previous cars
Discovery 200 tdi
Discovery 300 tdi
Discovery td5
12th Apr 2022 6:30 pm
popsdosh
Member Since: 09 Nov 2009
Location: cambs
Posts: 442
I would be getting that checked out by somebody who knows something about them before driving it much further.
Im slightly puzzled by the chain they may have changed ? Where did you get the work done as the term 'centre' has got alarm bells ringing.
13th Apr 2022 4:35 am
lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
I would say that is defo a mechanical noise and it wont get any better driving it, I would not be running that engine at all until you have had it looked at, by someone who has a clue.
Did it make the noise before the belt change?
13th Apr 2022 6:35 am
s60r
Member Since: 14 Mar 2021
Location: West Sussex
Posts: 287
There is a video of before and after aboveA mod a week until I have nothing to improve or add.
13th Apr 2022 7:17 am
s60r
Member Since: 14 Mar 2021
Location: West Sussex
Posts: 287
Please remove your oil filler cap while ticking over and see if the sound can be heard to be replicated through the rocker cover.
Maybe pop a video of the tick over with filler cap removed.A mod a week until I have nothing to improve or add.
13th Apr 2022 7:28 am
OvalAutos
Member Since: 28 Dec 2018
Location: Cradley Heath
Posts: 382
Paddington wrote:
hi kim0785b
as a non expert it sounds like a injector seal has failed. (little copper washer at the bottom of the injectors)
If the timing chains have been changed, then the injectors would have been removed and washers replaced. I would assume that whoever replaced the chains would've checked the followers as they would have had to remove the cam shafts, but it is possible they didn't.
Best advice, get it to a good local independent LR garage and have them listen to it. Videos of engine noises are useless.Joe
13th Apr 2022 7:29 am
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8244
Why did they change the timing chain?It can when others can't,
It will when others won't,
It goes where others don't.
13th Apr 2022 8:05 am
kim0785b
Member Since: 12 Feb 2021
Location: London
Posts: 141
knocking noise so timing belts and cambelts changed, fingers cross going to go back in for an oil change next week,
lovely car to drive,
13th Apr 2022 12:48 pm
DN D3 Decade
Member Since: 23 Jun 2006
Location: W.London.
Posts: 2346
An oil change won’t stop that knocking, there is a mechanical defect, or oil supply problem, and as said above, it needs someone who knows what they are doing, to strip it down and find the problem.D3 owned from new, P017 brake recall, BAS FBHIC, new FBH, LR013487 oil pump, new water pump. RRS front lower suspension arms. New suspension compressor/ relay. New Denso alternator. CuNifer rear brake pipes. New GKN rear propshaft. New HPFP belt & tensioner. New A/C Condenser.NO WARRANTY for many many years.
13th Apr 2022 1:20 pm
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8244
As above belts will not cause knocking but the belts may have needed changing anyway, obviously whoever changed the belts are not fully conversant with D3’s.It can when others can't,
It will when others won't,
It goes where others don't.
13th Apr 2022 3:07 pm
kim0785b
Member Since: 12 Feb 2021
Location: London
Posts: 141
going in for an oil pump change as it seems the oil isnt reaching the top of the engine and the head tappets with lower oil pressure perhaps. Anyone else having trouble getting parts perhaps?
Noticed also the car vibrates slightly on pickup, ever so slightly noticable.
Thanks for replies it makes me sleep at night ha
Last edited by kim0785b on 4th Jul 2022 7:06 pm. Edited 1 time in total
13th Apr 2022 9:21 pm
popsdosh
Member Since: 09 Nov 2009
Location: cambs
Posts: 442
Make sure they cut the oil filter open when they change the oil. Personally I wouldnt be driving the vehicle until they had. If they're a good indy why havent they already??
14th Apr 2022 4:58 am
kim0785b
Member Since: 12 Feb 2021
Location: London
Posts: 141
Oil pump wasnt replaced at the same time as didnt have one in stock and back orders delayed.
Decided not to drive it very much until the next drop at the garage, but on the motorway the sound does quieten down a little.
Have everything from con-rods, tappets, oil pressure discussions.
14th Apr 2022 7:57 am
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8244
If oil is not reaching the tappets you should not be driving it, certainly not on a motorway. In theory if the oil pump is failing it should get worse the hotter the engine gets. Take the oil filler cap off and with a torch look inside for oil after the engine has been running, if it’s dry don’t run it.
Can’t the garage do an oil pressure test on the engine?
How many miles has the engine done?It can when others can't,
It will when others won't,
It goes where others don't.
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but the belts may have needed changing anyway, obviously whoever changed the belts are not fully conversant with D3’s.
