 | Home > Puma (Tdci) > Another output shaft..... |
 
|
|
|
HD-Shafts, Ashcroft's solution, and glue.
| Zed Member Since: 07 Oct 2017 Location: In the woods Posts: 3330   
|
Are there any warning signs or symptoms before failure or does it just go pop?
|
||
13th Jul 2018 12:21pm |
|
| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17475 
|
Most commonly the failure is without warning and total. Some say that there has been backlash in the driveline and/or noises prior to failure, but this is not really much of an indicator since the TDCi driveline and clutch is notorious for backlash and noise and usually these will come from other sources (clutch, drive flanges, diffs, etc).
Unfortunately there is no reliable way to establish the condition of the coupling other than to remove the transfer box and inspect the parts. I have considered drilling and inspection hole in the extension housing so that a remote inspection camera can be used to look inside, but haven't yet done so. It wouldn't be particularly easy to assess the condition anyway by this means, but you would probably get a fair impression of the state of the thing. |
||
|
13th Jul 2018 12:28pm |
|
| nosnibod Member Since: 15 Aug 2007 Location: West Midlands Posts: 370 
|
Mine had quite a bit of transmission backlash that lead me to get nervous about it. It was slowly getting worse so I knew that either I was gradually forgetting how to drive or that the coupling was wearing.
The amount of rotational free play in the well-worn coupling itself seemed minimal when turning it by hand, but the new shaft has transformed the way the vehicle drives. It’s quite remarkable - to me at least - what a huge difference it has made. Other people appear to have had no warning whatsoever. Dave Green Goddess - 1998 Defender 110 300tdi |
||
|
13th Jul 2018 12:28pm |
|
| nosnibod Member Since: 15 Aug 2007 Location: West Midlands Posts: 370
|
My coupling - until it was taken apart - looked perfect. So signs of rust or anything else untoward. Only when the cover and rubber seal was removed did the first hint of the carnage show itself.
I did think to borrow an endoscope from a work colleague but never did. Even if I had managed to look inside the extension housing it looked perfect. There was no red dust or anything - the seal did a great job of holding the rust in! Dave Green Goddess - 1998 Defender 110 300tdi |
||
|
13th Jul 2018 12:32pm |
|
| ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 3127 
|
The last one I did failed over 3 days,
It was reported to me that it felt strange to drive, lots of backlash/slack in taking up drive, They thought they had broke the transfer box, as they were towing off road. They continued to use it the next day so they could Finnish the job, then came back and said it was no better or worse than the day before. It was only the following day, while towing and reversing up a steep slope it went bang! I think in normal non towing situations, this could have held out for a few more days, but probably not a great drive!  80" 80" 86" 88" 90"
Wanted, Forward Control Anything considered. |
||
|
13th Jul 2018 12:38pm |
|
| hornet Member Since: 04 Jan 2010 Location: Western Europe Posts: 362 |
More or less it gives up. It's the character of that connection, no warning signs. The force is carried by less and less material and/or profile. There will be one point of no return. Some document a higher mechanical play in the drivetrain. It's hard to believe if you look at the shaft's geometry.....
|
||
|
13th Jul 2018 12:50pm |
|
| Pickles Member Since: 26 May 2013 Location: Melbourne Posts: 3786  
|
No warning for us.
And my opinion is that any driveline "slack" does not come from this area, there's not enough "movement/play" to be felt. When you do get "play" is when it breaks, when at the very same time it will go bang! Pickles. |
||
|
13th Jul 2018 11:38pm |
|
| Grenadier Member Since: 23 Jul 2014 Location: The foot of Mont Blanc... Posts: 5858  
|
A couple of big clunks and backlash then 'boom', dead, gone, kaput. The boom wasn't an actual noise BTW, just my word implying the suddenness of the moment. I suppose I could have said 'pow'
 Monsieur Le Grenadier
I've not been everywhere, but it's on my list..... 2011 Puma 110DC - Corris Grey |
||
|
14th Jul 2018 7:13am |
|
| nosnibod Member Since: 15 Aug 2007 Location: West Midlands Posts: 370
|
There was a very noticeable reduction in the amount of backlash in my case - both in terms of noise and of the 'clunk' when taking up drive when changing gear. The only thing changed in my case was the output shaft so nothing else can be the cause. I wasn't expect so much difference, to be honest, but I think it's more a case of where the backlash is located within the drivetrain, like someone cracking a whip - a relatively small amount of movement reverberates down the drivetrain. Gracie now drives better than she ever has - the play in that shaft was the final piece in the jigsaw. New rear one-piece half-shafts and clutch 30,000 miles ago made little if any difference to the clunkiness and noise. Have a look here for my shaft being replaced - turn the sound up for the videos! https://www.icloud.com/sharedalbum/#B0iG6XBubgxJ6E Dave Green Goddess - 1998 Defender 110 300tdi |
||
|
14th Jul 2018 7:32am |
|
| Julie Member Since: 07 Oct 2017 Location: Nantes Posts: 502 
|
Just pop. Imagine yourself moving a steep hill downwards. So slowly - it's loose ground or even snow. The only connection between engine and tyres fails ...  |
||
|
15th Jul 2018 8:25pm |
|
| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2432  
|
Todays inspection. Bone dry and rust dust.
Significant wear. About 1/3 to 1/2 of the spline is gone. Looking at the stats, probably I would have had another 20-40 kkm until failure. I wish I had the money to get a proper Land Cruiser 
 Click image to enlarge 2007, 110SW, 88.000 km. Click image to enlarge Puma 110" SW ............................................................. Earth first. Other planets later |
||
|
17th Jul 2018 9:17pm |
|
| churchy Member Since: 28 Jul 2011 Location: UK Posts: 237 
|
Replacing mine for the 2nd time (that i know of) at 188k - just been quoted genuine from a site sponsor at £335 each.......!
|
||
|
30th Jul 2018 6:04pm |
|
| ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 3127
|
5 years ago you could get the whole lot for £130! 😩 80" 80" 86" 88" 90"
Wanted, Forward Control Anything considered. |
||
|
30th Jul 2018 6:15pm |
|
| churchy Member Since: 28 Jul 2011 Location: UK Posts: 237
|
Seeing as its clearly a weak spot I've opted for non genuine - gen or non gen they seem to be made of cheese - seems like a consumable like the bushes...!
|
||
|
30th Jul 2018 6:31pm |
|
|
|
| All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2025 Futuranet Ltd & Martin Lewis
