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New timing belt, timing problem...

  #1  
Old 07-16-2009, 08:51 AM
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Default New timing belt, timing problem...

So after searching forum, I installed new timing belt on my 04 v70 2.5t without a hitch.

I havn't started the car yet since I'm doing some other work to the vehicle.
I was just told that when I changed the TB, I was suppose to lock the cams as they are vvt.
WELL, I didn't lock the came unfortunately because I didn't read about it in the research I did.
I know for a fact that both cam gears moved a bit independently while making some attempts at putting the new TB on.
Now I'm not sure what to do. All marks still line up as prior to arrival. Is there a way to reset the cams? Does anyone suspect a problem? -Rob
 
  #2  
Old 07-16-2009, 10:03 AM
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I would suggest that you turn the crankshaft clockwise a couple of complete revolutions by hand, then an additional 90 degrees past the point where the 3 timing marks line up, then turn it back counter-clockwise 90 degrees, and make sure all 3 marks still line up. My understanding is when you turn it back 90 degrees it unloads the vvt cams.


EDIT - Reading this over, I realize it would not help - bw77
 

Last edited by bw77; 07-17-2009 at 03:24 PM.
  #3  
Old 07-16-2009, 10:09 AM
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Do this with the belt on?

I'm wondering if VVT only goes if you loosen the actual cam gear from the camshaft.
 
  #4  
Old 07-16-2009, 10:30 AM
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Yes, with the belt on. Here is some good info on the vvt cam

http://volvospeed.com/vs_forum/index...-locking-tool/
 
  #5  
Old 07-16-2009, 08:18 PM
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Only doing a belt you do not need to lock the cams. As long as the timing marks are lined up you are fine.
 
  #6  
Old 07-17-2009, 11:01 AM
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Originally Posted by 04v70 View Post
Do this with the belt on?
Are you serious? How do expect the marks to realign themselves with the belt off? The belt connects the pistons to the valves. You rotate the pistons making sure the valves remain timed properly. If you rotate without the belt, then you can expect the valves not to move at all.
 
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