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Cams Identification Topic is solved

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Nathan79
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Cams Identification

Post by Nathan79 » Fri Mar 13, 2020 8:25 am

07 xc70 2.5 dual cvvt
Engine had low compression. Rolled engine by hand to set "in time", used cam lock down tool (noticed notches in back side of cams NOT parallel to "head seam") Removed head. Sent to machine shop for valve job... When I get my head/cams/cam cover back... Cams lock tool is off cams, as well as "cam gears" without markings...😠😩...

My main question is, are the 2 cams identicle? The only different markings I found on the cams, was one is stamped (.3) the other is (.5). Also, what about the notches on the back side of the cams (where you install cam lock tool)? Why werent the notches parallel to "head seam"?

I fully understand the process of "resetting timing" (I've completed a 2001 V70 T5 head R&R)... But that was with my cam gears still on cams with locking tool assembled.

Any help is much appreciated!!

Thanks
Nathan

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vtl
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Re: Cams Identification

Post by vtl » Fri Mar 13, 2020 9:00 am

What is exactly the problem? Did they take camshafts out, gears and hubs off, so you can't figure out which camshaft is which?
05 XC70 260k, 16 XC60 40k, 19 Tundra 1k

Nathan79
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Re: Cams Identification

Post by Nathan79 » Fri Mar 13, 2020 9:33 am

Correct. I cannot positively identify correct cam shaft location. If I could Identify between exhaust & intake cam, I could proceed with head install & timing set-up.

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Nathan

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abscate
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Re: Cams Identification

Post by abscate » Fri Mar 13, 2020 9:37 am

I have both cams out of a 1999 RN NA engine - if pictures would help I could send/post/send by pigeon.

Look closely for a paint swatch - red and blue. I think I know which is which but you should research to be sure.

Also, look real closely on the rear end for an I and E in punch marked dot matrix format

Added picture from volvo webstore

First one is exhaust cam part number

Next three are intake cam variants.
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vtl
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Re: Cams Identification

Post by vtl » Fri Mar 13, 2020 9:37 am

Lobes on intake are about 42 mm, about 43 on exhaust. I think you can't mess them with the lock tool installed, the notches would not fit slots in camshafts unless they are properly placed.
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Nathan79
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Re: Cams Identification

Post by Nathan79 » Fri Mar 13, 2020 9:46 am

vtl wrote: ↑
Fri Mar 13, 2020 9:37 am
Lobes on intake are about 42 mm, about 43 on exhaust. I think you can't mess them with the lock tool installed, the notches would not fit slots in camshafts unless they are properly placed.
Great info... THANKS! I had thought about the notches & cam lock tool...but keep running into info & videos that have notches being parallel to head seam... I'm guessing this doesn't hold true for my motor? I think it's a 5254T...

Nathan79
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Re: Cams Identification

Post by Nathan79 » Fri Mar 13, 2020 9:48 am

abscate wrote: ↑
Fri Mar 13, 2020 9:37 am
I have both cams out of a 1999 RN NA engine - if pictures would help I could send/post/send by pigeon.

Look closely for a paint swatch - red and blue. I think I know which is which but you should research to be sure.

Also, look real closely on the rear end for an I and E in punch marked dot matrix format
Good info. Thank you! Will inspect further...

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abscate
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Re: Cams Identification  Topic is solved

Post by abscate » Fri Mar 13, 2020 10:00 am

Added part numbers above. I think these are stenciled into the cam rear - but easy to miss
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Nathan79
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Re: Cams Identification

Post by Nathan79 » Fri Mar 13, 2020 12:18 pm

abscate wrote: ↑
Fri Mar 13, 2020 9:37 am
I have both cams out of a 1999 RN NA engine - if pictures would help I could send/post/send by pigeon.

Look closely for a paint swatch - red and blue. I think I know which is which but you should research to be sure.

Also, look real closely on the rear end for an I and E in punch marked dot matrix format

Added picture from volvo webstore

First one is exhaust cam part number

Next three are intake cam variants.
Can't tell you how wonderful those part numbers were!! Easily identifiable on "notch" side of cams where part numbers are located!

Thanks to all involved. This is solved!

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