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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

1988 3.0 timing belt

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Old Jun 22, 2008 | 04:18 AM
  #1  
nolimit's Avatar
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1988 3.0 timing belt

Help I have rebuilt this motor and trying to install timing belt. I line up the cam pulleys as directed and #1 cylinder is tdc but after 2 complete rotations I'm about 2 teeth off on the cam pulley notches lining up. Any suggestions.
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Old Jun 22, 2008 | 08:03 AM
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Originally Posted by nolimit
Help I have rebuilt this motor and trying to install timing belt. I line up the cam pulleys as directed and #1 cylinder is tdc but after 2 complete rotations I'm about 2 teeth off on the cam pulley notches lining up. Any suggestions.
try lining it up 2 teeth off then when you rotate it it will land perfect
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Old Jun 22, 2008 | 10:20 AM
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Originally Posted by nolimit
...but after 2 complete rotations I'm about 2 teeth off on the cam pulley notches lining up.
Just to be sure: Remember that the mark on the belt "moves" with each complete revolution of the belt. It won't line up again for, oh, 30 revolutions.

I assume you are turning the crank two revolutions (back to TDC), and then the cam pulley doesn't line up with the mark on the head. You're not getting the slack taken up when you put it on; as suggested, you can try "installing" it off by two teeth so that it will end up in the correct place.
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Old Jun 23, 2008 | 06:03 AM
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Originally Posted by scope103
Just to be sure: Remember that the mark on the belt "moves" with each complete revolution of the belt. It won't line up again for, oh, 30 revolutions.

I assume you are turning the crank two revolutions (back to TDC), and then the cam pulley doesn't line up with the mark on the head. You're not getting the slack taken up when you put it on; as suggested, you can try "installing" it off by two teeth so that it will end up in the correct place.
Thanks for your help. I have it worked out now.
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