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My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
Check for any issues with the cam shaft itself or possibly an issue with the timing components like timing chain guides being worn or damaged in any way.If a fault is found this can cause this type of issue here and would need repaired.If this is or was checked and found to be o.k. let me know so we can continue.
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O.k. no problem.I will open your question up for others here to see if someone else can assist further on this as there may be others here that may have more info on what to check or do with this issue.I hope you can get this resolved with ease.No need to reply to my last post here unless it is a last resort as it will keep your question locked to me and others will not be able to view it.If you feel you want to continue to work with me on this feel free to reply at any time but keep in mind in some cases it can be difficult to fully diagnose or help repair this without seeing your vehicle.
How many teeth set up between the marks when installing this tensioner?
There are supposed to be 16 rollers between the marks (counting the rollers that line up with the marks as well) And only one cam has a sensor on it, so that one might be lined up properly with the crank, but the other would be off a tooth.
Here is a diagram from Alldata, I'm sure it is comparable to what you have since it is sourced from the Bentley
The marks on the camshafts should line up exactly with the marks on the bearing caps. The #1 roller will be the one that lines up directly with the mark, and #16 will line up directly with the other mark.
You can have a perfect crank/cam allocation because the crank is lining up perfectly with the exhaust cam (which has the cam sensor on it) but you could theoretically offset the intake cam as many teeth off as you want and it will never show up on a value block, because that cam has no sensor on it.