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CVVT Hub Replacement (How to DIY) - P2

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

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F250
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Volvo Repair Database CVVT Hub Replacement (How to DIY) - P2

Post by F250 » Wed Aug 10, 2016 9:49 am

After having gone through what I call a "vertical learning curve" on working with CVVT's for the first time, I decided to compile the best information I have uncovered in all my search and learn efforts into a single PDF document for my (and other's) future reference. I've already seen a couple of other threads recently where others are seeking the same information, so this will hopefully help others have a less frustrating time than I did when I was breaking new ground for myself.

If you spot errors, please let me know and I am happy to correct them. I did the best I could with what I had, and tried to give credit to all the host of others who helped me learn and compile this info.

NOTE: MOST UP TO DATE FILE IS NOW IN POST #3.
Last edited by F250 on Thu Aug 11, 2016 8:31 am, edited 2 times in total.


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Re: CVVT Hub Replacement (How to DIY) - P2

Post by Steve H » Wed Aug 10, 2016 6:11 pm

Great reference material. Thank you very much for the time you spent documenting it.



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Re: CVVT Hub Replacement (How to DIY) - P2

Post by F250 » Thu Aug 11, 2016 8:30 am

You're welcome.

IMPORTANT NOTE... DELETE the document you have downloaded before 08/11/2016, 9:30am CDT!, and replace it with the one in this post!
CVVT Hub Setting Guide.pdf
I realized last night that I had missed a few details in the procedure which have now been added. I also created a Revision table on the front page to track the document as it may change over time.

ALSO, I changed all the clockwise (CW) and counterclockwise (CCW) directional descriptions to FORWARD and REVERSE, which is simpler terminology, creates a great mental image easily because you know where the front and rear of the vehicle is. Admittedly, this works a little better for a transverse mounted engine, but since we all know "Righty-tighty", it should still work equally well for rear wheel drive engine setups. I've already replaced the document.


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Re: CVVT Hub Replacement (How to DIY) - P2

Post by matthew1 » Thu Aug 11, 2016 1:57 pm

Awesome PDF, F250! It's in the Repair Database, and your account is now MVS Contributor level to say thank you.


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Re: CVVT Hub Replacement (How to DIY) - P2

Post by F250 » Thu Aug 11, 2016 4:25 pm

You are too kind, Matthew. Thank you. I learned from my cohorts in my Ford Powerstroke forum that we all get better by helping one another, and things liek this are a way to help someone before they even know they need help. I'm not the most knowledgeable mechanic, by any means, but I've been doing chemical and project engineering work in manufacturing for 30 years now, and I often help develop procedures for our industrial clients. That said, I'm always glad to pitch in wherever I can with whatever skill set I can pull from..


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Re: CVVT Hub Replacement (How to DIY) - P2

Post by MadeInJapan » Sun Aug 14, 2016 10:25 am

Wow, what a write-up! Thanks for this- I may need it one day!!


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Re: CVVT Hub Replacement (How to DIY) - P2

Post by F250 » Sun Aug 14, 2016 1:55 pm

Thanks, but I want to clarify again that I'm really not the one who wrote everything up. I just compiled several writeups and additional tips, 95% of which were infinitely done by others. I did add a few tips I learned myself while going through it all, and I added some illustrations, some minor technical writing editing, and then shoved it all into a PDF for easy download. Sort of like a lot of secretarial work in comparison to the bulk of the information contained in the document.


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Re: CVVT Hub Replacement (How to DIY) - P2

Post by F250 » Fri Oct 14, 2016 4:38 pm

IMPORTANT NOTE! REVISED DOCUMENT ATTACHED
CVVT Hub Setting Guide - Rev2.pdf
The earlier revision misstated some of the rear cam slot alignment details on Page 2 which have now been corrected in Rev.2.
You do not have the required permissions to view the files attached to this post.


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Re: CVVT Hub Replacement (How to DIY) - P2

Post by SoapyCoyote » Wed Aug 16, 2017 8:57 pm

I have a concern here guys. I noticed that my cam notches don't line up right on my new head. Here is what they are supposed to look like



Pictured below is what my original head and cams look like and as you can see the notches line up



Now here is what my new head looks like. My exhaust cam notch lines up, but my intake notch doesn't.


Also, my notches are almost exactly horizontal but the picture in the example shows them angled about 10 degrees off horizontal. I'm about to take the valve cover back off and see how the cam lobes compare. Any advice guys?



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Re: CVVT Hub Replacement (How to DIY) - P2

Post by SoapyCoyote » Wed Aug 16, 2017 10:01 pm

Well I took the valve/cam cover off and compared lobes. Here's the old one




and here's the news one


So the notch can apparently be on the left side and still be ok. Hope this helps someone.



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