Factory branded timing belt?

[Lukeis]

I just had a timing belt service and the team said they are wondering if it has been done before as the timing belt wasn’t Land Rover brand. Would anyone know if it should have been?

ive had the car since 90,000km and now has 140k so would prefer to think I haven’t wasted 2k for no reason

FYI. I did it early than the 168k because I will be on a 6 month trip which would bring it close to that before i get back

[kelvo]

I was under the impression that the factory fitted belt was marked Dayco and not Land Rover. Although being marked FoMoCo would make more sense.

[loanrangie]

I would have left it til you got back, I doubt it was previously unless it had passed the 7 year age mark.
Timing belts don't magically fail at the recommended replacement period.

[eddy]

Original will be branded Dayco and at that age/kms will look hardly worn at all.Some independents have reckoned ten years would be more realistic.

[Lukeis]

Original will be branded Dayco and at that age/kms will look hardly worn at all.Some independents have reckoned ten years would be more realistic.

oh that’s good. Yep it was branded dayco
i saw the belt and it was in great shape but figured it’s better to be safe than sorry.
will be selling the car next year so The next owner will appreciate it being done at least

[shamirj]

I have usually done mine at the 7yr mark and around 100kms, most of the D4 when looking to buy had not had the timing belts done maybe due to the costs involved, and some were around the 100km mark but i was always concerned about the 7 year time line as the 2011/12 models are at that age now. I would think those belts after 7yrs would be affected by engine heat etc so i tend to lean towards having them done at cost rather then leave till later or gamble for more years or kms before changing. Pity they cost so much when other timing belts are predominantly cheaper to do. I think the parts could be had incl water pump for approx $600.

[INter674]

Yes we found that many used d3 d4s were due for belt/s...so bought a petrol to avoid the reported belt/turbo/manifold issues/costs.

One major Tas car yard did not know the car we viewed was due or even that it was needed. Later the owner rang saying sh.....ite....we are gonna take a hit with this one! At least he offered to do them for the sale price☺

[twr7cx]

The rubber breaks down over years from the vapours and heat. Personally, I wouldn’t risk it with the front belt as it’s an interference engine so failing would result in fatal engine damage and significant expense and hassles. The delayed replacement could cost you big if it goes wrong. Regardless of kms, if it’s 7 years or older replace it.

However, for the rear timing belt that drives the fuel pump I’m lead to believe is not an interference setup and therefore if it fails would only result in the vehicle being left stranded (how serious that is depends on your use of the vehicle I guess - if your a remote traveler then that can be much more dangerous and costly if it occurs). I’d personally be happy to maximise economic benefits risk it and push that out to 10 years as the cost if it goes wrong is likely just a tow truck ride. Could even consider leaving it and just pushing it for as long as possible.
I’m not sure however if there is a time saving benefit of doing both belts concurrently? I.e. items in the engine bay that have to be removed in order to access both belts. If so, this might make changing both at once more appealing.

[Lukeis]

Assume then the rear belt is not accessed at the same time as the timing belt? Otherwise for the cost you’d do it at the same time

[101RRS]

Both belts are scheduled to be done at the same time.

[Eric SDV6SE]

Yes we found that many used d3 d4s were due for belt/s...so bought a petrol to avoid the reported belt/turbo/manifold issues

Surely petrol engines need their timing belts changed too?

Imho there are no “issues” with regards to timing belts on any of the D3 or D4’s, they just need replacement every 7 years or 160,000km.

[kelvo]

Surely petrol engines need their timing belts changed too?
The Super Charged SCV6 has two timing chains, one for the left bank & one for the right bank. There is no scheduled service requirement to replace them.

[DiscoJeffster]

The Super Charged SCV6 has two timing chains, one for the left bank & one for the right bank. There is no scheduled service requirement to replace them.

Three actually lol. One drives the jack shaft which then drives the balance shaft and cam chains from what I can see. Seems more complicated than I’d have expected but I’ll defer to their knowledge.

[INter674]

Correct the SCV6 has lots of chains☺ and there were some issues with early Ford based engines which were addressed by fitting upgraded timing chains. Chains have not been a problem with these engines since.

Certainly it's very nice not to have to shell out cash on belts..which leaves more money for petrol. ..which it likes very much😆

[Graeme]

The rubber breaks down over years from the vapours and heat. Personally, I wouldn’t risk it with the front belt as it’s an interference engine so failing would result in fatal engine damage and significant expense and hassles. The delayed replacement could cost you big if it goes wrong. Regardless of kms, if it’s 7 years or older replace it.Years ago a brother bought an Alfa 90 that was overdue for a belt change. The belt broke while driving it home, bending every valve.

[twr7cx]

Surely petrol engines need their timing belts changed too?

Yes, but only if they have a timing belt fitted. In Land Rover applications, most seem to use timing chains so don’t require interval changing like the timing belts.

[Dagilmo]

Does anyone know why one (chains/belts) is chosen over the other when designing the engine?

[DiscoDB]

Timing Belts are cheaper and quieter.

Timing Chains are more durable and last longer. But more expensive.

[DiscoJeffster]

Does anyone know why one (chains/belts) is chosen over the other when designing the engine?

Belt is cheaper as mentioned. Belts are also quieter. Packaging can be a factor as well. A chain is narrower for the same strength.

You sometimes see both - chain for upper cams and belt timing it all to the bottom end.