4.4 TDV8 oil leaks
There are 2 points on this engine that develop oil leaks. One is from o-rings on the turbo oil supply pipe fitting where it is attached to the back of the block and the other is from the combination oil / EGR cooler that is mounted in the V.
The oil pipe's 2 o-rings are not available from LR as a spare part - only a whole new pipe which is quite involved to fit. The later version of the pipe already fitted to my engine is in 2 parts which allows the short section with the head fitting to be removed but unlikely to be worth fitting as people have no difficulty in changing the o-rings on the earlier version. My suggestion is BS611 (for 9mm shaft into 12mm hole) which are readily available in Viton 75. These have been fitted by a couple of owners in the UK and today I got to use the ones that I purchased 18 months ago in anticipation of the originals eventually leaking. Whilst the original o-rings measured to have a slightly smaller cross-section, they were soft compared with the new Viton seals although others have gone hard and cracked. My vehicle is 6 years old and has done 80K kms. The replacement is not difficult with good access once the heater/ac air intake is removed (2 nuts).
The oil cooler leak is almost invariably due to leaking gaskets, either the oil cooler to block gasket LR022903 or the EGR cooler to oil cooler gasket LR077242 rather than a damaged housing so usually an inexpensive repair taking a couple of hours. Mine's not leaking yet but both gaskets will be replaced when it starts to leak. The 4 short rubber hoses connecting the air intake to the inlet manifolds will be replaced at the same time as the original version are prone to failure.
MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
VK2HFG and APRS W1 digi
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