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Ianh

Member Since: 17 Sep 2018
Location: Essex
Posts: 1736

from What I’ve been reading it seems to be an ongoing issue with some vehicles, with some unlucky owners changing out the shaft more than once. So unless they have been very unlucky and replaced a poor manufactured shaft with another poor manufactured shaft it’s likely to be as blackwolf has deduced.

16th May 2021 11:33am

DSC-off

Member Since: 16 Oct 2014
Location: North East
Posts: 1350

2015 Defender 110 Puma 2.2 XS CSW Aintree Green

Sorry to continue taking this thread off topic.

The quality of the adapter shaft is remarkably consistent. How else could you explain 4 failures in the same vehicle, all at around 25,000 mile intervals?
The owner would have been very unlucky to get 4 bad shafts in a row, over a 7 year period. During that time shafts have been running in other vehicles for over 100,000 miles, sometimes well past that.

Variable shaft quality would result in large variance of failure intervals in the same vehicle. This is not seen in the forum survey on the topic. The survey does show that if you continue fitting standard shafts, without changing anything else, then they all fail at roughly the same milage interval in a vehicle that has the problem.

Back on topic.
Thanks to Nigel for continuing to post his every interesting and informative videos on the comprehensive rebuild of his 90.

16th May 2021 12:53pm

Gloucesternige

Member Since: 17 Jan 2020
Location: In the garage
Posts: 114

2011 Defender 90 Puma 2.4 HT Keswick Green

Back onto the subject,

I am just uploading the 4th part of the engine reassembly with the fitting of Piston cooling jets and the gallery filter below No1 main bearing, neither of which are mentioned in the build sequence in the manual?
We also get the crank in and I discuss the need for stoning of mating surfaces during assembly.

I will make a new video regarding the alignment of transfer case to MT82 today. Nige

Check out my You Tube channel
https://www.youtube.com/c/Defender90KeswickNigelsLandRoverchannel

16th May 2021 12:57pm

Gloucesternige

Member Since: 17 Jan 2020
Location: In the garage
Posts: 114

blackwolf wrote:
Nige, I was intrigued by your insistence that there cannot be alignment issues between the MT82 output and the LT230 input when you were talking about the LOF one-piece adaptor shaft in your video. Being mindful of the strength of your feelings, what do you think would account for the huge variations in spline wear on notionally identical vehicles built on the same line at the same time using notionally identical parts, if not a tolerance/alignment issue?

.

I have since altered my opinion on this matter and will make a video discussing this later today. Nige

Check out my You Tube channel
https://www.youtube.com/c/Defender90KeswickNigelsLandRoverchannel

16th May 2021 12:59pm

Co1

Member Since: 19 Aug 2018
Location: North Yorkshire
Posts: 3610

I’m famous!! I’m famous!!

Just watched the latest vid nige, thanks for the shout out!

16th May 2021 3:58pm

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 16857

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Interesting video, what you describe is exactly the conclusion I came to. It is going to be extraordinarily difficult to measure though.

Incidentally the reason I don't comment on your videos on YouTube (or anyone else's for that matter) is that you cannot comment unless you have a YouTube account. I don't, and don't want one.

I am also of the view, and I say this with the greatest respect and no intended criticism, that if someone promotes their videos on the Internet's best Defender forum, it is only to be expected that comments are made and discussions take place about said videos on the forum.

Last edited by blackwolf on 17th May 2021 8:33am. Edited 1 time in total

16th May 2021 11:41pm

nitram17

Member Since: 09 Jun 2014
Location: newcastle
Posts: 2260

DSC-off wrote:
Sorry to continue taking this thread off topic.

The quality of the adapter shaft is remarkably consistent. How else could you explain 4 failures in the same vehicle, all at around 25,000 mile intervals?
The owner would have been very unlucky to get 4 bad shafts in a row, over a 7 year period. During that time shafts have been running in other vehicles for over 100,000 miles, sometimes well past that.

Variable shaft quality would result in large variance of failure intervals in the same vehicle. This is not seen in the forum survey on the topic. The survey does show that if you continue fitting standard shafts, without changing anything else, then they all fail at roughly the same milage interval in a vehicle that has the problem.

Back on topic.
Thanks to Nigel for continuing to post his every interesting and informative videos on the comprehensive rebuild of his 90.

I only put forward the quality of manufacture as a question and its obviously not that so if its alignment issues do people think the lof one piece solution will end up with more expensive gearbox problems down the line..i really dont know how you would be able to separate normal gearbox failure from lof induced failure........

17th May 2021 1:37am

Co1

Member Since: 19 Aug 2018
Location: North Yorkshire
Posts: 3610

Latest video is great Nige. “Health and safety wise it’s a no no, so don’t tell anybody I told you!”

21st May 2021 5:15am

Gloucesternige

Member Since: 17 Jan 2020
Location: In the garage
Posts: 114

Why is it a H+S No no? Nige

Check out my You Tube channel
https://www.youtube.com/c/Defender90KeswickNigelsLandRoverchannel

21st May 2021 11:43am

boxoftricks

Member Since: 06 Feb 2019
Location: Home Counties
Posts: 745

2011 Defender 110 Puma 2.4 USW Zermatt Silver

DSC-off wrote:
Sorry to continue taking this thread off topic.

The quality of the adapter shaft is remarkably consistent. How else could you explain 4 failures in the same vehicle, all at around 25,000 mile intervals?
The owner would have been very unlucky to get 4 bad shafts in a row, over a 7 year period. During that time shafts have been running in other vehicles for over 100,000 miles, sometimes well past that.

Variable shaft quality would result in large variance of failure intervals in the same vehicle. This is not seen in the forum survey on the topic. The survey does show that if you continue fitting standard shafts, without changing anything else, then they all fail at roughly the same milage interval in a vehicle that has the problem.

Back on topic.
Thanks to Nigel for continuing to post his every interesting and informative videos on the comprehensive rebuild of his 90.

I think a lot is down to driving styles causing this. Especially the way individuals change gear. The difference in fully pressing the clutch down and pausing after you engage the next gear to allow everything to torque back up at low revs before gradually introducing the power vs quick gear changes with a partially depressed clutch and pushing the accelerator instantly back down as many do in modern cars. My style is akin to driving classic and vintage cars.

Not intentional abuse but over thousands of gear changes the spinning up of the play in the drive chain I'm guessing adds up.

I may be toitally wrong....

21st May 2021 1:30pm

Co1

Member Since: 19 Aug 2018
Location: North Yorkshire
Posts: 3610

Gloucesternige wrote:
Why is it a H+S No no?

I was you that said it was on the vid! You were talking about the virtues of using a screw driver to the ear to check for tappets knocking with the engine running and rocker cover removed.

21st May 2021 3:38pm

Gloucesternige

Member Since: 17 Jan 2020
Location: In the garage
Posts: 114

Hahaha Co1.

I forgot that part.. I thought you might be referring to my lashed up engine stand? Nige

Check out my You Tube channel
https://www.youtube.com/c/Defender90KeswickNigelsLandRoverchannel

21st May 2021 5:28pm

nitram17

Member Since: 09 Jun 2014
Location: newcastle
Posts: 2260

[quote="DSC-off"]Sorry to continue taking this thread off topic.

The quality of the adapter shaft is remarkably consistent. How else could you explain 4 failures in the same vehicle, all at around 25,000 mile intervals?
The owner would have been very unlucky to get 4 bad shafts in a row, over a 7 year period. During that time shafts have been running in other vehicles for over 100,000 miles, sometimes well past that.

Variable shaft quality would result in large variance of failure intervals in the same vehicle. This is not seen in the forum survey on the topic. The survey does show that if you continue fitting standard shafts, without changing anything else, then they all fail at roughly the same milage interval in a vehicle that has the problem.

It would of been interesting if a lof one piece was put into that sort of truck you mention to see what happened! perhaps somebody on here has done that?

21st May 2021 8:54pm

lonewolf

Member Since: 23 Oct 2013
Location: North East England
Posts: 206

2010 Defender 90 Puma 2.4 CSW Zambezi Silver

24th May 2021 7:56pm

SJM2018

Member Since: 06 Jul 2018
Location: Bristol
Posts: 296

2011 Defender 90 Puma 2.4 XS CSW Aintree Green

Nice to see your truck coming together Nige

2011 CSW XS 90

21st Aug 2021 10:13pm

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