Home > Puma (Tdci) > Output shaft failure, Forum Survey |
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ralsim Member Since: 16 May 2024 Location: wales Posts: 5 |
Haha extra zero sneaked in there somehow current daily defender puma 110 xs 2.4 Current Project Series I 1.6 2 door past landrover 110 1983 v8 stage 3 engine with ported heads, ported polished inlet manifold balanced crank, large trumpets, top hat liners large valves ported plenum with large butterfly sadly stolen |
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17th May 2024 4:14am |
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Julie Member Since: 07 Oct 2017 Location: Nantes Posts: 460 |
Hi Dave, Being installed in June 2018, my "blue" Ashcroft spline fails due to oil leak issues (after 90 000 km). So I am thinking about a replacement part. I don't like the idea of fixing an Ashcroft kit every 90 000 km / 5 years. For 4 years the kit has outperformed very well, so installation cannot be an issue (done by JLR reseller) Are there any differences between the "blue" and the "red" splines (with respect to tightness) ? Best regards Julie |
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20th Jul 2024 8:47pm |
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Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 4194 |
Had mine replaced yesterday, not for any reason other than the box was out for a clutch change and it seemed wise. However, on inspection, no signs of any wear on the old one to my eyes. You can still see the machining marks on the splines which suggests not much fretting at all.
2007 2.4 tdci 110, 97,000 miles. To my knowledge the shaft is original. It did have a clutch quite early in it's life, but nothing to indicate the shaft was done. Click image to enlarge 2007 110 TDCi Station Wagon XS |
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2nd Aug 2024 12:39pm |
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Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 1970 |
With very limited wear and no grease to be seen ! you must have a very will aligned shaft
Petty all were not built like yours. |
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2nd Aug 2024 12:48pm |
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Julie Member Since: 07 Oct 2017 Location: Nantes Posts: 460 |
Red Ashcroft kit being installed yesterday replacing the blue one from 2018.
Design failure of the blue kit are quite obvious |
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3rd Aug 2024 7:42pm |
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Julie Member Since: 07 Oct 2017 Location: Nantes Posts: 460 |
Red Ashcroft kit being installed yesterday replacing the blue one from 2018.
Design failure of the blue kit are quite obvious |
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3rd Aug 2024 7:42pm |
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MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2401 |
Can you explain the flaw of the blue one? Puma 110" SW ............................................................. Earth first. Other planets later |
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3rd Aug 2024 9:32pm |
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DSC-off Member Since: 16 Oct 2014 Location: North East Posts: 1392 |
Can you explain the flaw of the blue one?
My opinion, and I do not wish to negatively criticise Ashcroft in any way for the design evolution of their product. Early pumas that failed did so at approximately say 50,000 miles on average. Later vehicles that failed did so sooner at say approximately 30,000 miles on average. This indicates that the alignment variability that causes the fail is worse in the later vehicles. Julie's vehicle, 2012, is one of the later vehicles that has statistical been proven to be in the 'worse' category. From page 9 of this thread showing failure rate for model years: Click image to enlarge Now consider the time that Ashcroft were first developing their coupling. They were dealing with the earlier vehicles that had been in use for some time. Later vehicles that were failing were still being fixed by LR under warranty and nobody outside JLR realised that the problem was getting worse. So, in short, Landrover's quality problem got worse and the original Ashcroft design had to be modified to allow for that. With the greatest respect. |
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4th Aug 2024 10:23am |
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BrickBox Member Since: 05 Oct 2021 Location: Wales Posts: 798 |
LOF single piece above all IME. No extra splines to wear and no oil seals to leak. Fit and forget. 2008 2.4 110 Utility Station Wagon XS.
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4th Aug 2024 10:33am |
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Julie Member Since: 07 Oct 2017 Location: Nantes Posts: 460 |
Have you ever seen plastic or rubber seals in engines or gearboxes ? Just install your oïl sump using a rubber seal and see what happens after five years |
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4th Aug 2024 9:20pm |
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Julie Member Since: 07 Oct 2017 Location: Nantes Posts: 460 |
Neither spline nor cone present any trace of wear |
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4th Aug 2024 9:28pm |
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blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17310 |
It will be interesting to see how these and similar rigid shafts perform long-term in vehicles with a proven appetite for standard couplings. I am not aware of anyone who has yet covered a significant mileage with a LOF shaft in a vehicle known to have an alignment problem, and I cannot quite avoid the fear that something more expensive than the original coupling will be wearing. I have no doubt at all that they will be fine in vehicles with well-aligned components, but there again so does the factory design in these cases. Time will tell. |
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4th Aug 2024 9:28pm |
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Julie Member Since: 07 Oct 2017 Location: Nantes Posts: 460 |
These fabrication tolerances ("misalignement") are a forum legend - nobody ever measured and compared them.
Many design changes could influence corrosion : - change of material (shaft or spline) - grease - tolerances - temperature (the exhaust with DPF is hotter) ... But tolerances do exist. They refused the installation of a rigid shaft (LOF, ...) - they install only Ashcroft and original ones. And it's one of the big five (independant Land Rover garages here in France ) |
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5th Aug 2024 6:50am |
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Julie Member Since: 07 Oct 2017 Location: Nantes Posts: 460 |
These fabrication tolerances ("misalignement") are a forum legend - nobody ever measured and compared them.
Many design changes could influence corrosion : - change of material (shaft or spline) - grease - tolerances - temperature (the exhaust with DPF is hotter) ... But tolerances do exist. They refused the installation of a rigid shaft (LOF, ...) - they install only Ashcroft and original ones. And it's one of the big five (independant Land Rover garages here in France ) |
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5th Aug 2024 6:52am |
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