Jaguar 2.7 V6 Engine Rebuild
Common Jaguar 2.7 V6 Engine Failures
The Jaguar 2.7 V6 engine is the same platform as the Land Rover 2.7 TDV6 and therefore shares the same problems. The crankshaft of this engine by design has weak spots in the area between the rod bearing journals and the counterweights. Over a long period of a high stress or an aggressive driving style these points on the crankshaft fail and even break. This seems to still be the case on a vehicle with the correct maintenance history. The lion v6 crankshaft failure most commonly causes spun main and big end bearings. Some of these were severe enough to cause permanent heat damage. Oil starvation can be another less common cause for engine malfunction. Issues include: snapped camshaft chains, damage to fuel injectors, heat damaged and melted pistons. Turbocharger failure is also possible.
Another common issue is the oil pump/tensioner mounting failure below:
We commonly carry out engine rebuilds on the 2.7 V6 most commonly fitted to the Jaguar XF, as part of this we replace the crankshaft. This is a very important step in ensuring a reliable high quality engine that will last.
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2.7 TDV6 Oil Pump/Tensioner Mounting Failure
A common problem with the 2.7 TDV6 is the oil pump housing has a weak point where the tensioner is mounted. This point eventually breaks under the high stress in this area and causes failure. Every 2.7 engine rebuild we carry out has the oil pump replaced with the newer upgraded oil pump. The upgraded pump has reinforcement in the vital stress point so this issue is resolved.
Jaguar 2.7 TDV6 Engine
Ford had been working with PSA Peugeot Citroën on a series of small diesel engines for Peugeot and Ford cars, so it made sense to produce a bigger unit to suit Jaguar Land Rover and Peugeot’s larger car needs. However Peugeot wanted a 2.5 litre engine and Jaguar Land Rover wanted a 3.0 litre unit. A compromise was made at 2.7 litres and work started at the PSA engineering centre in Paris. Engineers from Land Rover were involved to ensure the engine would work for the particular demands of a Land Rover application.
This engine was then adopted by Jaguar and adapted for use in the Jaguar XF, Jaguar S-Type and Jaguar XJ. Changes were made to the oil sump to accommodate this. Compared to many similar, and older engines the TDV6 is of relatively light weight. It’s made from a compacted graphite iron block which has thinner walls without losing any strength. Dry it weighs in at 205 KG. In 2009 this was updated to the 3.0 TDV6.