jonny mac Posted October 21, 2017 Share Posted October 21, 2017 hi guys, so I've had both my camshafts out my vvti 2jz tt engine today, swapped over 24 valve stem seals so now I've got the cams back in the head and torqued down, the crank is set at tdc going by the dot on the pulley/dot on the oil pump and a screw driver into cyl1 plug hole i'll be using the - dash marks on the cam pulleys rather than the dot as those are 30* btdc, which my crank isn't at, it's at tdc however I can grab my vvti pulley and move it around a lot, I don't know what exact accurate position to set it at before fitting the belt? I've seen online some say you need to fully crank the vvti pulley clockwise whilst turning the camshaft with the big 32mm hex to line up the - dash against your timing cover I'd have thought it would need to be set in the middle? or does the vvti just advance the cam with oil pressure and doesn't need to work the other way? thinking about it I can see that it would only work one way given oil pressure any help here would be great as I've basically just got to do the timing and I'm good to throw the rest of my engine back together Quote Link to comment Share on other sites More sharing options...
Krister Posted October 22, 2017 Share Posted October 22, 2017 (edited) Rotate the vvti cam gear full clockwise so there is no free play. Same direction the cam belt would pull the cam gear to. You are correct the, oil pressure just advances the cam. So the when there is no oil pressure or signal to the vvti solenoid the timing belt pulls the free play to the other side where it needs to be when you set the timing when the crank is btdc IIRC put the cam gear marks at the lines (dashes?) when having the crank at BTDC, just like with a regular non-VVTi 2JZ, not on the dot. Edited October 22, 2017 by Krister (see edit history) Quote Link to comment Share on other sites More sharing options...
jonny mac Posted October 23, 2017 Author Share Posted October 23, 2017 Rotate the vvti cam gear full clockwise so there is no free play. Same direction the cam belt would pull the cam gear to. You are correct the, oil pressure just advances the cam. So the when there is no oil pressure or signal to the vvti solenoid the timing belt pulls the free play to the other side where it needs to be when you set the timing when the crank is btdc IIRC put the cam gear marks at the lines (dashes?) when having the crank at BTDC, just like with a regular non-VVTi 2JZ, not on the dot. awesome, managed to set it with the vvti pulley fully clockwise and lined up to the marks on timing cover, turned engine over and made sure they all lined back up correctly delighted thanks for the reply Quote Link to comment Share on other sites More sharing options...
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