Thread: Ticking noise in engine TD4 Defender 110 - help around Darwin?

The Defender TDCi (puma, 2007 - 2016)

*2.4 in general only need the injector seals doing, they dont tend to eat injectors.
*2.2 eat injectors

*BUT depending on how many km's it had done I would plan to replace the injectors. (dont bother getting them tested, its a waste of time and your money)
*my experience with Defenders from euro land is they tend to be overloaded and the injectors / engines have a way shorter life than here in Australia.
*The nasty DPF doesnt do the engine any favours.

my video on replacing injector seals, I cant remember but I think I talk about replacement etc.
https://youtu.be/l5G9PRX3Y3w?feature=shared

If not attempting repairs yourself then try About - LR Automotive

X 2 for Leigh at LR Automotive in Winnellie

Thanks guys, went to Leigh at LR Darwin. He ordered some new seals and washers and i could work on the car in front of the building. Changed the parts, no difference. Sound is coming from the 3th cylinder. Put a new injector in that one just to be sure, didn’t help. Seems like the conrod/big end is on it’s way out. We’ll swap the engine for a different one next week. Leigh is a great help!

Originally Posted by ronaldterh

Thanks guys, went to Leigh at LR Darwin. He ordered some new seals and washers and i could work on the car in front of the building. Changed the parts, no difference. Sound is coming from the 3th cylinder. Put a new injector in that one just to be sure, didn’t help. Seems like the conrod/big end is on it’s way out. We’ll swap the engine for a different one next week. Leigh is a great help!

It's sounding like it is cheaper to do an engine transplant than refurbish bearings in existing engine?

No doubt there could be a number of reasons for your engines issue.

Does the knock go away soon after engine is warm or is it there all the time? Wonder if your 3rd cylinder is giving you a hint that the following recall is relevant and soon to be a bigger issue; is your VIN captured in this recall and if so was the recall a new engine or a modification to the existing engine? The same article also talks of faulty injector hitting piston...cam carriers cracking.

DEFENDER2.NET - View topic - TDCi Reliability and Longevity

Anyone know about the following service bulletin - was it mandatory to all 2007 TDcis?

Land Rover Service Bulletin SSM38792, 2.4 Puma Engine Knock Noise.
Title: 2.4 Puma Engine Knock Noise.
Type: LD - Defender - All Years - Special Service Messages - Engine
Name / Part No: SSM38792
Info Type: Service Bulletins
Version No: 1
Date Uploaded: 21 Jul 2008
Models: LD - Defender
Title: 2.4 Puma Engine Knock Noise.
Last Modified: 21-JUL-2008 09:44
Category: Engine
Symptom: 497000 Engine Noise

Content Issue: Heavy audible knocking heard on start up.
Cause: On start up oil pressures can cause the piston cooling jets, (PCJ), to latch into a zero flow condition. Due to hysteresis effect in design the jets do not unlatch until the engine is warm and the oil pressures lower again. During this time with no pressurized oil jet flow to the lower pistons / cylinder bores, overheat and scuff conditions / damage can occur.

Action: Replace the engine assy but ensure only engines post serial # ELD00080707063602 are used.
This condition will not occur on vehicles post assured Vin# 9A767162.
Engines post the info above are fitted with modified PCJ internal springs and this issue is now closed.

And here:

Just a moment...

The early 2.4's (2007-2009) had known engine failures due to some oil channel valve that became blocked causing a knocking noise and later failure.