Thread: Discovery 4 SDV6 Engine Knocking

It could also be a failed injector copper seal and the noise is the engine cycle. You’ll find out soon as it’ll burn through something.

Try using a screwdriver on your ear on each injector/cylinder to find the noise, or a stethoscope if you have one.

In the event it is the damn crankshaft and you are contemplating selling the car 'as is' for virtually nothing, may I suggest you consider the following: Given the low k's and if you have full service history then (possibly via a Lawyer) you contact JRA to 'discuss'. There is plenty of anecdotal stuff on this Forum including the LR Service News (#SSM71816/72928) etc.

Failing that, given the low klms I am sure you would get away with a 'short' motor. If a push came to a shove you'd possibly get away with your pistons and rings if it is 'only' the crankshaft. If it were mine I wouldn't touch the cylinder heads. Get the turbos checked/cleaned to remove any swarf/debris etc, and not much else I can think of at the moment. Obviously the entire engine would be dismantled and cleaned in the process.

Automotive Skills at Kirrawee NSW are LR specialists and chaps on this Forum have used them for engine repairs/crankshaft issues and report favourably re their Service. I didn't notice what part of the Country you hail from.

So, what I am trying to say is don't get discouraged or talked into buying a $20,000 odd new complete engine assy as I am confident it would not be necessary at your klms.

FWITW my MY13 has 174,000 and in the event it developed a c/shaft problem I would not get the heads done even at that age. Considering there are several D4's on this Forum with well over 300,000 k's and going fine.

Good luck!

Originally Posted by jp8000

Hi

Before I re-mortgage the house and then contact Southport Land Rover, can anyone recommend a good independent shop that services land Rovers on Gold Coast?

The motor is a Disco 4 2013 3.0 SDV6 with 120km. Started making a knocking/tapping noise from engine yesterday. has always been regularly serviced by Southport Land Rover.

I am not shy of a little DIY and have experience of changing clutches etc. But one look at the service manual for this thing and unless it's something simple, I haven't got the toys to fix it. My cheap OBDII dongle and supercheap trolley jack aint gonna cut it

Anyway, trouble shooting so far. I noticed fan belt tensioner pulley bouncing around a fair bit(is this normal?). I disconected a few pipes as per YT vid and removed tension. pulley wheel has next to no play on bearing so not that I don't think.

Finally managed to find how to check the oil level(bonnet open, ignition on, push cruise control cancel button twice!!!) and was just above "min" added 1 litre of oil and now just under "max". Noise still there.

Took slow mo video and then slowed that down on VLC player. Tick is every 6th(V6 makes sense) and is every 2 rpm so in theory valve train or hopefully injector?

I can upload short video of sound if anyone is interested.

EDIT - I have attached both normal speed and slo mo videos to this post in case anyone knows what this sounds like .......

EDIT 2 - I attached another clip that unfortunately sounds very like these, or am I just being paranoid? -

Land Rover Discovery Sport engine knocking loud (rod bearing failure) - YouTube

Range rover sport 3.0l Tdv6 Engine Tapping Noise.. Any one got any ideas..? - YouTube (see 3rd comment, bugger!)

Cheers
John

The ONLY person worth talking to on the Gold Coast is Rick at Ricks 4WD Centre at Unit 1, 21 Lawrence Drive, Nerang (07) 5595 6662. Rick is a top mechanic and has been in business on the Gold Coast for many years. He knows everything worth knowing about Land Rover products. He should be your 'best friend' - he is mine!

Neil
2013 Discovery SDV6

Have you had a look at the oil filter for debris?

That should give you a good idea if anything catestrophic has happened in the lower end...

-Martin

As a survivor of the dreaded 'heavy knock, knock, knock, stop and crankshaft snappage', I can reliably say that given your low km and age vehicle (with the documented service history) I would definitely have a 'polite' conversation with LR Australia about coming to the table with a suitably cheap remediation option.

In our personal experience our Disco 4 SDV6 had a non-original engine replacement with dubious history prior to the 'explosion' and so we had very little recall to LR Australia on that basis short of dipping into our pockets to the order of 30-40k for the labour and replacement long engine. Given our Disco was a 2011 SDV6 HSE variant with approx 160k km (again not reliable km for the engine given the engine number difference from new to what was in the vehicle) we elected to pursue independent repair options. We hit gold with a low km SDV6 and attached auto box replacement (with the best ancillary bits across both engines) for the princely sum of $16k with a very adept independent LR mechanic in Sydney.

Hopefully you don't end up in a similar experience, but just know that we went through an extensive pros and cons list of junking the Disco with the boat anchor engine and a replacement suitable for 4wding and towing a van against repairing our Disco and continuing to live with it. Resultant was that we couldn't justify the additional cost of a Landcruiser or Patrol with more than double the kms with far less comfort.

All the best and send me a PM if you want any more info on options.

Goldey

Originally Posted by BradC

This is a "just in case" reminder, but left hand thread on the fan.

I can relate to that as I took 1 of our Defenders to a well known and recommended indy years ago for something or other (I'm getting forgetful.... ) and when I got it back I checked under the bonnet and there were bloody great gashes in the nut holding the fan on. You could see where a chisel had been used to try and force it off as if it was a right hand thread.
I immediately got back to these absolute turkeys and they fixed it with a new fan hub with a lot of bad attitude at being caught out.
It wasn't either of the 2 indys I've been using for some years now obviously.
AlanH.

Hey, sorry got side tracked with work and have been trying to escape this saga for a bit. I managed to get a mobile tech out who hooked up a far better scanner than mine and still didn't find anything a miss. Injectors are all tight as well. What he did do, which I should have done before doing anything else, is open the bloody oil filler cap while it was running. The noise is nasty! If anyone wants to hear it I'll post a short clip.

So scenario right now looks like a major mechanical failure inside engine according to tech. His suggestion is to get it towed to Rick's at Nerang for them to confirm. In the meantime the old faithful backup car has had the spider webs and ants removed, tyres checked and battery connected. Fired up 1st time as usual, good old Hyundai Getz!

Thanks for all the info and recommendations so far. This forum is a gold mine of knowledge. Still trying to figure out what to do next. either way is rather expensive.

On a side note, I done some wikipedia'ing and found the "Ford" engine is also used in Jag's, Citroens, Peugot's etc.. Found this Jag with 65km on it, rip out the engine and sell for parts?? Clutching at straws now!

carsales.com.au

I'll check the oil filter as well, thanks martinfrench.

Cheers

Originally Posted by jp8000

Hey, sorry got side tracked with work and have been trying to escape this saga for a bit. I managed to get a mobile tech out who hooked up a far better scanner than mine and still didn't find anything a miss. Injectors are all tight as well. What he did do, which I should have done before doing anything else, is open the bloody oil filler cap while it was running. The noise is nasty! If anyone wants to hear it I'll post a short clip.

So scenario right now looks like a major mechanical failure inside engine according to tech. His suggestion is to get it towed to Rick's at Nerang for them to confirm. In the meantime the old faithful backup car has had the spider webs and ants removed, tyres checked and battery connected. Fired up 1st time as usual, good old Hyundai Getz!

Thanks for all the info and recommendations so far. This forum is a gold mine of knowledge. Still trying to figure out what to do next. either way is rather expensive.

On a side note, I done some wikipedia'ing and found the "Ford" engine is also used in Jag's, Citroens, Peugot's etc.. Found this Jag with 65km on it, rip out the engine and sell for parts?? Clutching at straws now!

carsales.com.au

I'll check the oil filter as well, thanks martinfrench.

Cheers

The Jag engine has the same block and the other 2 are fwd application so can't be used.