Diy timing chain

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djkaosone

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Damn... now I seriously wasted 4-5 of them at $150 a pop. They're in the trash somewhere. :beer:
 

avslash

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Very good info.

Saving an offline copy of this thread in case of site problems in the future.

Mine are still chugging along at 90K, but this thread has made changing them much more palatable when/if the time comes.

@Huy Tran , did you change the oil pump drive chain as well?

And yes, please upload the videos you referenced in your last post.
 
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Huy Tran

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@avslash
Sorry for the late reply.
I'm only replacing the tensioners and guides.
After much reading and checking current conditions of the chains and associated gears, I felt it was more prudent to leave all those as they are (including Aux chain). Hope it's not a decision I will come to regret...

But here's a video I saw re-posted from a Jaguar forum that illustrate the tensioner reset.


Dave Tibbs also has this to say about the chain guide and tensioner that I think is a critical step.
  • The Jaguar service manual is specific about a step I've seen other guides miss: after pulling the pin out of the tensioner to release the tension, you need to push on the tensioner blade enough for the tensioner to hit the ratchet stop - if you can push the tensioner back in, you haven't got it yet.
  • When pushing on the tensioner blades in order to allow the tensioners to hit their ratchet stop, the service manual states to use considerable force - they are not ****ing around here. In the end I had to lever it hard with a socket extension bar in order to get it to ratchet. The "click" isn't as audible as the service manual implies, but you'll know when it's done as you won't be able to push the tensioner blade back.
 

djkaosone

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In the end I had to lever it hard with a socket extension bar in order to get it to ratchet. The "click" isn't as audible as the service manual implies, but you'll know when it's done as you won't be able to push the tensioner blade back.
Funny thing is that I did this with a c-clamp on the old ones that came out, but I never heard a click. Maybe that's where I went wrong. I wonder if I would have to pull out the current ones and redo them?
 

Huy Tran

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Funny thing is that I did this with a c-clamp on the old ones that came out, but I never heard a click. Maybe that's where I went wrong. I wonder if I would have to pull out the current ones and redo them?
I was going to ask how you did yours.
The first couple times I just pulled the pin and press as hard as I could but no click. The blades could still be moved back a little. I thought this was acceptable as oil pressure would provide additional tension when the engine was running. But every time I would manually turn the crank, the chain would jump.
I'll try the c-clamp idea. Haven't reinstalled the tensioner yet. Need to disassemble the vvt and clean the filter. The oil that was dripping out of there was pretty dirty and sludgy. And I just did an oil change less than 1,000 miles ago.
 

Huy Tran

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Filter looks ok, but the oil is nasty... Thick and super dark.
Makes me think there's a circulation problem. 20191119_193255~2.jpg 20191119_194216~2.jpg
@djkaosone sorry to hijack your thread.
 

ClevelandLR4

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Not for faint hearted. I m sweating . Saw one hour Atlantic British video on you tube about timing chain change. Every time Garth says’ at this time we r making conscious decision to change these component’ I get more nervous
 

ryanjl

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Not for faint hearted. I m sweating . Saw one hour Atlantic British video on you tube about timing chain change. Every time Garth says’ at this time we r making conscious decision to change these component’ I get more nervous

Since you own a 2013 or newer, you already have the updated timing chain guides on yours. Keep your oil changes to 7k miles or below and you should be good.
 

Huy Tran

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More frequent oil change maybe the best way to combat this timing issues. Even with the updated tensioner and blade on newer vehicles, I think the overall system suffers from lack of oil flow. Old oil seems to accumulate in certain components and allow to cook and build up.
These are cam sprocket screws.
20191119_210601.jpg
Look at all that tar.
 

scott schmerge

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More frequent oil change maybe the best way to combat this timing issues. Even with the updated tensioner and blade on newer vehicles, I think the overall system suffers from lack of oil flow. Old oil seems to accumulate in certain components and allow to cook and build up.
These are cam sprocket screws.
View attachment 10281
Look at all that tar.

ignorance is bliss man! Why’d you have to go and show us that? Lol. I like thinking my 5k oil changes keep things from looking that way in there...now I’m not gonna sleep
 

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