 | Home > Puma (Tdci) > Running in 2.4 tdci |
 
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| shropshiredefender Member Since: 05 Jun 2017 Location: Shropshire Posts: 832   
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Firstly I'm not in the first flush of youth so every engine I've rebuilt (they were mostly carburetor fed petrols) and every new company Cortina or Sierra has been carefully run in over at least 5k miles.
Now I've had a new engine fitted to the Defender I'm assured that I can put the BAS tune back on and drive as usual! Bit alien to me - comments - experiences? |
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19th Feb 2018 3:04pm |
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| MartinK Member Since: 02 Mar 2011 Location: Silverdale (Lancashire/Cumbria Border) Posts: 2664  
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Yes ... took it easy for the first 1000 miles, then did a full oil change... Defender "Puma" 2.4 110 County Utility (possibly the last of the 2.4's)
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19th Feb 2018 3:42pm |
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| zsd-puma Member Since: 09 Aug 2016 Location: Kent Posts: 2720
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General advice I remember from the handbook when we had new transits and sprinters was to drive them gently for the first 1000 miles, don't over rev them and don't labour them then gradually build up how hard you drove them over the following 1000 miles.
Of course most just got thrashed and laboured from day one the same as 90% of transits in fleet use. We used to get rid of them at around 200'000 miles, and we still see them running around with their new owners now. so I'm not sure how much of a difference running them in actually makes. |
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19th Feb 2018 6:55pm |
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| tookaphotoof Member Since: 18 Mar 2013 Location: dordrecht Posts: 1279  
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I just warm up the engine oil and after that I cruise and if needed I give it the beans.
Concerning the Defender... Mine got full throttle for about 10 seconds within 3 miles from home from new. Just to keep me and my family for being killed by a truck when I need to get on the highway. 
Both of my Defenders never had engine problems or used a drop of oil between the service intervals. |
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19th Feb 2018 7:41pm |
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| MartinK Member Since: 02 Mar 2011 Location: Silverdale (Lancashire/Cumbria Border) Posts: 2664
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the manual says:
 Click image to enlarge 
Interesting, in 6th gear at 50 uphill, I usually think the engine is laboring, so I often change to 5th to keep the revs around 1800-2000, so the motor is spinning rather than laboring... The item above seems more suited to td5... Defender "Puma" 2.4 110 County Utility (possibly the last of the 2.4's) |
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19th Feb 2018 8:21pm |
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| lohr500 Member Since: 14 Sep 2014 Location: Skipton Posts: 1287 
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Many years ago the advice with a rebuilt diesel was not to allow the engine to idle for any length of time after initial start up . And not to run with very low load. The reason being that this can cause the cylinder bores to glaze up with combustion residues, leaving a very smooth surface which then makes it difficult for the piston rings to bed in and work properly. Perhaps it's less relevant with modern oils as used in the Defender engines.
There's a description here, relating to marine engines, but I guess the principles are similar. https://coxengineering.sharepoint.com/Pages/Boreglazing.aspx If it were my new engine, I certainly wouldn't be thrashing it at high revs for the first 500 or so miles, but nor would I allow it to idle for long periods from a cold start or be too light footed on the throttle. As zsd-puma said, there are many, many Transits out there that will have been hammered from day one with no respect for running in and most are still going strong. |
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19th Feb 2018 8:44pm |
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