How do you set valve timing?

Tiny
STDO57
  • MEMBER

No turbo 2.9 with cvvt and always on intake brcause cam sensors are always intake.
I think in this era the should monitor each cylinder-o2sensor and they should do the exughst and 2 to 4 cams.

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Monday, June 19th, 2017 AT 10:39 PM (Merged)
Tiny
JIS001
  • EXPERT
  • 2,406 POSTS

Slacken off, but do not remove, the (3)screws which secure the timing gear pulley to the variable valve timing (VVT) unit.
Press the variable valve timing (VVT) unit / timing gear pulley on the camshaft.
Install the center screw which secures the variable valve timing (VVT) unit to the camshaft and tighten slightly.
Turn the variable valve timing (VVT) unit anti-clockwise as far as it will go.
Remove the center screw.
Position the upper timing cover.
Turn the timing gear pulley clockwise until the screws at the oval holes are in the limit position.
Continue turning clockwise until the timing gear pulley marking is 1 1/2 Cog before the marking on the upper timing cover

Note: Do not turn anti-clockwise during this procedure!

Check that the timing gear pulley is still in the limit position in the oval holes.
Tighten the center screw in the variable valve timing (VVT) unit to 120 Nm (88 ft. lbs.) .
Check that the variable valve timing (VVT) unit does not rotate when tightening.
Install and tighten the center plug to 35 Nm (26 ft. lbs.) .
Turn the variable valve timing (VVT) unit clockwise to the limit position.
Turn the timing gear pulley so that the markings correspond.


http://www.2carpros.com/forum/automotive_pictures/337695_88997342_1.jpg

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Monday, June 19th, 2017 AT 10:39 PM (Merged)
Tiny
STDO57
  • MEMBER

Worked perectly thaks.

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Monday, June 19th, 2017 AT 10:39 PM (Merged)
Tiny
  • 2001 VOLVO S80
  • 56,000 MILES

I've lined both camshaft factory marks with the upper cover marks as indicated. The crankshaft pulley mark is lined up wmith the factory mark that's on the bottom front of engine when l crank the engine over the front variable camshaft gets loose and it won't spin from taking the cam censor off to view the variable camshaft is turning. What is interferring with the front variable cam from turning?

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Monday, June 19th, 2017 AT 10:39 PM (Merged)
Tiny
MARKIEMARK79
  • 2002 VOLVO S80
  • 107,000 MILES

Hi I ownn s80 2002 107000 2, 4l manual petrol but after timming belt changed came up on my dash board engine light ECM640A camshaft reset valve so wot did that mean and also do I need to replace camshaft sensor coz after deleting all faulty codes car works perfect but after 2-3mils driving everythings commin back as it was be4 I mean car hasnt power. Thx

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Monday, June 19th, 2017 AT 10:39 PM (Merged)
Tiny
FIXITMR
  • MEMBER

Likely a clogged/faulty intake camshaft solenoid valve.

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Monday, June 19th, 2017 AT 10:39 PM (Merged)
Tiny
JIS001
  • EXPERT
  • 2,406 POSTS

If light came on after the belt change that you could be off a tooth or two. Recheck that timing marks line up.

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Monday, June 19th, 2017 AT 10:39 PM (Merged)

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