 | Home > Puma (Tdci) > 2.4 tdci Timing Chain Stretch - The Pictures |
 
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| shropshiredefender Member Since: 05 Jun 2017 Location: Shropshire Posts: 832   
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This happened at under 110k miles to my meticulously serviced engine
 Click image to enlarge The culprit -chain jumped crank sprocket and removed tooth. Click image to enlarge No.4 piston complete with shrapnel. Click image to enlarge No. 1 & 2 pistons. Click image to enlarge Head. The amazing thing is that it ran for over 150 miles before the head was removed to reveal the above. So now to add to the BAS tune I have a BAS intercooler and silicone pipes  , new starter, new turbo, new Clutchfix clutch and a substantial bill 
Just went for a restrained test drive  |
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20th Feb 2018 2:57pm |
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| shropshiredefender Member Since: 05 Jun 2017 Location: Shropshire Posts: 832
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Interesting Ian - I bought it with 40k miles on the clock, ex-lease and main dealer serviced, and haven't had the timing chain replaced.
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20th Feb 2018 3:19pm |
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| zsd-puma Member Since: 09 Aug 2016 Location: Kent Posts: 2720 
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I expect it had been removed for access. To fit a new oil pump for example.
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20th Feb 2018 6:03pm |
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| Badger110 Member Since: 06 Feb 2018 Location: South hams Posts: 1025 
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Definately on my list of must do's for the 140k 110! Nervous....
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20th Feb 2018 7:46pm |
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| mick Member Since: 08 Feb 2010 Location: Yorkshire Posts: 2109 
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I didn’t think they had to be changed
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20th Feb 2018 7:56pm |
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| Badger110 Member Since: 06 Feb 2018 Location: South hams Posts: 1025
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From what i've read, they can slip a tooth on the sprocket and making a mess of the engine. Being a chain you wouldn't expect this to happen in a low mileage engine, and from what i've read on this so far ( which is a little limited as i only got mine 10 days ago ) it has happened on higher mileage units. For me, it's not worth ignoring, peace of mind and a weekend doing it is worth a lot more than a possible engine failure, but i may be just being overly cautious... |
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20th Feb 2018 8:12pm |
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| mick Member Since: 08 Feb 2010 Location: Yorkshire Posts: 2109
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Well I was chatting to the lads at my indie ( Stonelake) as they had just done one on one with less than 20 K on it but that was stretched by the Dealers towing it down the road bumping it off several times.
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20th Feb 2018 8:25pm |
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| ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 3127 
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The TDCI cam chains are not bomb proof,
I’ve seen badly worn pump sprockets, around the 150,000 mark. They are nothing like the robust duplex set up in the TD5 that’s for sure! The chain kits come with everything you need, crank pulley, cam shaft sprockets, pump sprocket, Tensioner, and all the plastic guides. Bolts, and crank seal. Also wise to buy a new timing chain cover, as they leak like  if you try to reuse them!
(Ask me how I know  ) 80" 80" 86" 88" 90"
Wanted, Forward Control Anything considered. |
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20th Feb 2018 8:34pm |
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| pannawonica Member Since: 21 Nov 2010 Location: Clackline Western Australia Posts: 568 
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Well this tread burst my bubble, I always thought puma’s where capable of starship mileage’s. This was because in transit forums some were approaching 1million miles.However using the transit forums researched cam chains and was certainly enlightened! My question too those who know, when would it be when usiing good oil and servicing to change it out? Funny thing is they all don’t seem too do it, and you know what white van men are like!
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21st Feb 2018 12:15pm |
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| ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 3127
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I’ve done a few Transits at 130,000, but that was the fleet owner wanting them done purely because they had cam belt issues with other vehicles,
They then think all other vehicles will be the same, regardless of having a chain instead of a belt! There is no strict guide to it, I would say if yours is high mileage and your concerned, then change it. Mines just turned 120,000 and I plan to do it in the next couple of months, just for piece of mind really. https://www.googleadservices.com/pagead/ac...amp;adurl= 80" 80" 86" 88" 90" Wanted, Forward Control Anything considered. |
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21st Feb 2018 2:33pm |
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| zsd-puma Member Since: 09 Aug 2016 Location: Kent Posts: 2720
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chains last longer than belts and generally speaking they'll start to get noisy before they fail, but they still don't last for ever.
With a transit it depends what it's been used for. Hammering along motorways at 85mph all day long will be far less stressful than doing multi drop stop start driving around a town where it might be switched on and off 130 times a day. Interestingly modern engines are now going over to belt in oil systems. The Puma's replacement uses this system supposedly goes massive intervals without a belt change, but still retains the benefit of having a belt rather than a chain. |
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21st Feb 2018 3:32pm |
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| Gloucesternige Member Since: 17 Jan 2020 Location: In the garage Posts: 114 
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Just read through this thread and thought I'd post.
I am currently rebuilding my 2.4 Puma due to oil leaks. I removed it to check the clutch and oil pump.. oil pump is fine as it's of the geared variety, not vane, but the clutch springs are rattly?? But.. minor oil leaks at nearly every joint. Anyway.. I removed the timing cover and sump with a sharpened putty knife and they have remained dead flat. Careful removal of the sealant with a silicone sealant dissolver has them as good as new. I have bought the Reinz full gasket set from island 4x4 and this contains two tubes of sealant for the whole engine, however I will more than likely use 3 bond on sump and timing covers as it is the best sealant out there in my opinion. The downloadable manual for the 2007 on engine is useless.. theres no mention of the centre nut and plate on the fuel pump, it goes on about a tool to align the lower ladder frame, which would be useless as the ladder frame looks nothing like the one shown and it doesnt even cover crank bearing clearances!! Nige Click image to enlarge |
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17th Jan 2020 3:08pm |
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| shropshiredefender Member Since: 05 Jun 2017 Location: Shropshire Posts: 832
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Good to see that you've got a trained "Rover" mechanic on the job
 Just because you're offended doesn't mean you're right. |
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17th Jan 2020 4:43pm |
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