 | Home > Puma (Tdci) > 2.2 What Mileage should the timing chain be changed? |
 
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| jim4244 Member Since: 13 Apr 2014 Location: Bedfordshire Posts: 853   
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Hi
I do believe that 2.2 and 2.4 timing chains are deemed good for the life of the engine/vehicle? Obviously if the timing chain snaps or jumps then the engine life ends there... I would think that a timing chain is good for 150,000 miles and the life of the engine and the timing chain is dictated by the level of maintenance and frequency of oil changes of the engine as a whole? I'm sure someone will be along with a definitive answer in the next few hours. Jim |
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29th Jan 2025 4:14am |
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| jbcollier Member Since: 29 Apr 2024 Location: Edmonton AB Posts: 167  
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If you pull the head, change the chain, tensioner, guides, and sprockets. Ford parts kits are cheap.
If you just bought the vehicle, look at the service records. If it has been cared for, it will be fine. |
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29th Jan 2025 5:03am |
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| BrickBox Member Since: 05 Oct 2021 Location: Wales Posts: 885  
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It actually isnt the end of the engine. The pistons are pocketed enough for the valves to not touch the pistons, so you can put a new chain etc on and it’ll be fine. Obviously depending on how the chain let go, if it’s let go because you’ve gone from 6th to 2nd gear or something silly. I forget what the terminology is for the engine design that the values can’t touch the pistons. Edit:just googled. I believe the terminology is ‘non-interference engine’ “Non-interference engine - The pistons and valves will not come into contact, even if the timing belt or chain breaks” 2008 2.4 110 Utility Station Wagon XS. |
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29th Jan 2025 8:59am |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20620 
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I tend to agree with Jbcollier and Brickbox here, there is chain guide wear there that you can get.
But, I really wouldn’t personally lean towards replacent for the sake of it, as if it isn’t broke don’t fix it. You could come out with more issues than you started with, of course if you had access to it then you can get it done there and then if it was needed. If it does snap, it doesn’t mean the engine is done for, but it is possible. It isn’t something you want to happen if you can help it, but anything can happen. Sensible regular oil changes with good quality engine oil I think is an important factor, there are people out there who hardly bother. I think you can over and under service, I go by 12k or 2yrs whichever comes first, or relatively close to that where I can. It can pay I think to replace air filter every year, plus garage servicing doesn’t include MAP and MAF cleaning, I think that should be done bi annually. But regards the original subject, engine oil of quality and regular servicing is Important. TheThunder Rolls🇬🇧🇺🇸 ⛽️🛢️⚙️🧰💪 |
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29th Jan 2025 6:11pm |
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| benh78 Member Since: 29 May 2018 Location: UK Posts: 19 
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Thanks for the ideas. Realistically most manufacturers in this case Ford will build the components of the engine to reach a minimum of 100k miles or 3 years. From internet searches the timing belt stretches and the auto adjuster can only compensate for so much stretch so I reckon around 150k miles with the regular oil changes I do. But I'll try and find a garage that has done a few to have listen and see if any of the current noises point to potentially doing it earlier.
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1st Feb 2025 12:16pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2146
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Worth checking out the transit forums as well for the 2.2, I believe the MK7 used a 2.2 . Transits tend to be pushed harder, driven less sympathetically , and serviced less frequently than our defenders. So you will probably get the worst case scenario. However there are a lot more 2.2 transits than Defenders, and they tend to rack up the miles, so more data on timing chain life should be available.
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1st Feb 2025 5:48pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17609 
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Don't confuse information about belts with information about chains which have a much longer life. |
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1st Feb 2025 5:53pm |
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| stichill99 Member Since: 16 Jul 2024 Location: Scottish Borders Posts: 11
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 Click image to enlarge We took the opportunity to change the chain when our egr cooler split! |
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2nd Feb 2025 10:47am |
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| benh78 Member Since: 29 May 2018 Location: UK Posts: 19
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Thanks I know it’s a chain the chains do stretch |
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2nd Feb 2025 2:40pm |
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| jbcollier Member Since: 29 Apr 2024 Location: Edmonton AB Posts: 167
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Chains do not "stretch". They "lengthen" due to internal wear on the pins and rollers. Sorry to be a pendant but people hear "stretch" and think the metal of the chain is being pulled out of shape.
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2nd Feb 2025 2:46pm |
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| Julie Member Since: 07 Oct 2017 Location: Nantes Posts: 554  
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VW engines were quite famous for their lengthening timing chaines - but I've never heard similar about the Transit engine
Last edited by Julie on 8th Feb 2025 6:55pm. Edited 6 times in total |
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2nd Feb 2025 5:12pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2146
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^^^^^^^^^^^^^^^
Am I missing something as I can’t see what the video has to do with a Puma 2.2 timing chain 
Even after the edit I still can’t see the videos relevance to the longevity of a 2.2 timing chain  |
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2nd Feb 2025 5:16pm |
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