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5VZFE 3.4 Timing Belt Confusion

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Old Jun 6, 2010 | 08:28 AM
  #1  
theMonch's Avatar
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From: NJ - 5 miles from NYC
5VZFE 3.4 Timing Belt Confusion

My problem: I am trying to finish up the preventative maintenace on a 5VZFE before I swap it into my '88 runner.

My problem is that I install the new timing belt with crank timing marks aligned at 0 degrees (straight up) and both cam gears at 0 degrees (straight up as well) then I install the belt with the three belt marks right on the cam gear marks and the crank mark and they all align. I release the hydraulic tensioner and everything is still good. The problem is that when I turn the motor over by hand a full rotation, the timing marks are now one tooth to the right (clockwise facing the motor) on both cam gears and the crank gear. If I turn it over a full rotation again, then they are off by two teeth. I have tried pulling and re-installing it 4 times and same results. Is this supposed to be happening? I am assuming that they should be realigning back up when the motor goes around a full cycle.

How could they be aligned when I start, then all go off by a tooth each rotation? Any help would be appreciated. I am guessing that the actual belt marks are for initial setup and are ignored after installation?
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Old Jun 6, 2010 | 11:37 AM
  #2  
Firefightertaco's Avatar
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From: Mooresville, NC
that's fine, the belt is gonna be 1 tooth off at all the marks as i remember but look at the cam an crank marks should still be right, that same thing got me for like 5 hours, just don't pay any attention to the marks on the belt except for when u put it on the first time the belt marks are not gonna line up again after u turn the motor
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Old Jun 6, 2010 | 11:53 AM
  #3  
Elton's Avatar
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From: Siletz,Oregon
lol i never did check to see if mine was off but its been fine for the last 500 miles
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Old Jun 6, 2010 | 12:24 PM
  #4  
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From: Pismo Beach, California
Yup, you're in the clear!
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Old Jun 6, 2010 | 12:54 PM
  #5  
theMonch's Avatar
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From: NJ - 5 miles from NYC
Thanks.

Sweet, thanks guys. Thats what I thought, but I guess I was looking for a little confirmation.

They really should mention this fact in the FSM since I believe the factory belt has the marks as well.
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Old Jun 7, 2010 | 06:17 PM
  #6  
cdpmtoy's Avatar
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From: nashville tn
ratios

Remember you are timming the gears not the belt. Always recheck your gear timming marks after you rotate.They should line up with the the back plate marks.
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