rbodor3 Posted July 4, 2013 Report Share Posted July 4, 2013 Replaced the front exhaust camshaft seal. Volvo instructions seem unclear to me. What I did: 1) Set timing to marks, remove belt, remove pulley, remove VVT center nut, replace camshaft seal 2) install VVT with the pulley turned full-COUNTER CLOCKWISE (bolts far right in oval). Timing mark 1 tooth before timing cover 3) Tighten VVT 120Nm 4) Turn the pulley so that the timing mark aligns with timing cover (1 tooth) CLOCKWISE 5) Tighten pulley bolts 10Nm 6) install timing belt, set tensioner, etc. But reading through vida again the directions don't seem clear. Can anybody clarify this? Link to comment Share on other sites More sharing options...
wizzard_al Posted July 4, 2013 Report Share Posted July 4, 2013 If you are pulling the VVT gear off, you will need to be sure the cam doesn't move, and that requires the Volvo cam setting tool. Otherwise, you cam could be about anywhere and you'll get a CEL because you are at least a tooth off of where you should be. Link to comment Share on other sites More sharing options...
rbodor3 Posted July 4, 2013 Author Report Share Posted July 4, 2013 locked the cams Link to comment Share on other sites More sharing options...
Ihatespeedbumps Posted July 5, 2013 Report Share Posted July 5, 2013 A few months back I made a video on this procedure http://volvospeed.com/volvo_repairs_how_tos/engine_repairs/cvvt-hub-removal-and-set-up.html Link to comment Share on other sites More sharing options...
rbodor3 Posted July 6, 2013 Author Report Share Posted July 6, 2013 thanks man, but I (unfortunately) did not mark the hub prior to removal. I'm trying to follow the volvo procedure to install new vvt and hub without the initial markings. Any guidance? Tried a couple of times and still having the engine running very very rough @ idle. Link to comment Share on other sites More sharing options...
Ihatespeedbumps Posted July 6, 2013 Report Share Posted July 6, 2013 Well, just to be sure the running rough at idle isn't another issue, are you getting camshaft position sensor codes? If you're using VIDA it will show up as ECM 644A - Faulty position. If you are, and the hub isn't setup correctly, no worries. Forget everything you read in the VADIS/VIDA, the directions are bullshit, simply put. Lock the cams in place and make sure the crank shaft marks are correct. Line up the intake cam to the timing cover, then rotate the CVVT hub clockwise to see where your current timing marks align. This will tell you how far forward/back you need to adjust the hub. Remove the center bolt and rotate the hub as necessary. You'll probably have to do this a few times, but you'll get there. Don't worry about the three bolts that secure the hub to the gear, not necessary to remove those. Snug down the bolt and rotate the hub to see where the marks land, if they are off, back it off and try again. When you get the timing marks to match the cover when the hub is rotated fully clockwise, go ahead and make your final torque on the center bolt. Install the cap, and proceed to install the timing belt, of course making sure to rotate the hub to it's end position when installing the belt. All of the marks should be lined up at that point. Go back and re-watch the video, it'll make more sense, even if you didn't make marks on the back of the gear. Link to comment Share on other sites More sharing options...
rbodor3 Posted July 6, 2013 Author Report Share Posted July 6, 2013 awesome man. Did exactly that and, as you mentioned, had to adjust the hub a couple of times to get it right since every time i torqued it shifted a touch. eventually got it Link to comment Share on other sites More sharing options...
Ihatespeedbumps Posted July 6, 2013 Report Share Posted July 6, 2013 Running ok now? Link to comment Share on other sites More sharing options...
rbodor3 Posted July 7, 2013 Author Report Share Posted July 7, 2013 yup! Link to comment Share on other sites More sharing options...
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