Thread: 2.2 puma 130 engine failure

With regards to EGR my disco did 270,000 KM with never a problem with the EGR system. Most of the people who relate problems such as stuck EGR valves etc seem to be doing mostly town running without an opportunity for the engine to get up to operating temperature and to clear the soot buildup.

Engineering wise the decision to route exhaust gas back into the engine is not driven by anything other than pollution reduction, and its a pretty big tradeoff as well. NOx is produced due to the high combustion temperatures in a diesel engine. By diverting cooled exhaust gas back into the inlet manifold the combustion temperatures are reduced and NOx emissions are reduced. The tradeoff, however is that lower combustion temperatures mean less efficient combustion resulting in more soot which is conveniently filtered by a DPF where fitted.

After doing some reading I'm more convinced that even if it functions correctly Diesel EGR does not have many benefits.

Regards,
Tote

Originally Posted by jackdef90

Nobody in this thread ever thought that, I take my mechanical knowledge from working in ship engine rooms, where fuel contamination is a big issue, where does all your vast knowledge come from?

I didn't say they did jack. Gravity feed is pretty basic stuff.

Its not gravity fed, that's what your in tank or non in tank fuel pump does, if it was gravity fed you would need head pressure for your fuel system to work.

Originally Posted by jackdef90

Its not gravity fed, that's what your in tank or non in tank fuel pump does, if it was gravity fed you would need head pressure for your fuel system to work.

The fuel is under gravity therefore the fuel pick up is at the bottom of the tank. Therefore the fuel pickup is gravity fed. The engine isn't, correct. Gravity is the reason a pump is required.

No probs jack, have a great day.

Hi, just experienced the same issue ( cracked piston ) on my 130 2.2lt at just over 105000km. Just wondering if this is still happening to any other 2.2s, as the threads are all 2015/16. Dealer is suggesting a replacement engine, as parts to repair are so expensive for Land Rover! Mine is a 2012, used 80% on long country driving, 20% on farm. The Td5 and Tdi s that I have run, have all done to the 200kms, so not too happy with this one. Have been a LR owner since 1977 and this one is No. 13 for me......

Keep pushing for a replacement engine, mine went at about 75k, LR initially blamed water in the diesel, but it was tested and found no water trace..unfortunatley there is history of these 2.2 engines in other vehicles cracking pistons. In the end LR were very good and replaced the engine and covered labour..mine now has 148k on it and hasn't missed a beat.

Thanks Summiitt, I read your story last night and pleased to see no more problems for you. Ive had no other mechanical issues with the 130 and I must admit, it is the best engine that I have had in one. (tdi 300 / Td5 and now 2.2) but a bit disconcerting when it just suddenly goes wrong! No murmurs of any LR help or responsibility yet though.....