Question about Volvo S40

3 Answers

Took old camshaft gear off. Gear itself did not have and dowl pins or anything to ensure proper placement when replacing it. Put new one on and secured. Now can't get car to time right. Any suggestions?

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  • larachurchil Sep 29, 2010

    We have a tool to lock the cams in place. We believe the problem is with the gear. Do you know how to make sure it is it writh place?

  • larachurchil Sep 29, 2010

    Are you a volvo specialist? The person working on the car is a certified mechanic of twenty Years. The reason we paid for this question to be answered is so we do do not want to take it to the only volvo dealership in the entire state.

  • larachurchil Sep 30, 2010

    Had to replace a variable timing cam gear in a 2000 volvo s40. Gear and cam did not have any dowl pins to ensure proper realignment upon installing new gear. Also, new gear has no markings on it at all. (old gear did-so it could be bached up easily) Put new gear on to what appeared to be the way old one was. Would not time. How do we know correct position of cam gear? Also, at this point have valve cover off. What cylinder does this motor use to time off of-1,2,3, or four.

  • larachurchil Sep 30, 2010

    2000 Volvo S40

  • larachurchil Sep 30, 2010

    Also, do you know what cylinder the vehicle is timed off of? 1,2,3, 0r 4?

  • larachurchil Sep 30, 2010

    Ok. The new cam gear has absolutely no markings on it whatsoever to align. The old one had a notch between two of the teeth.

  • larachurchil Sep 30, 2010

    Also, do you know which cylinder they time the motor off of? Have the cover off now. Don't know if everything is off by 180.

  • larachurchil Sep 30, 2010

    Where where are you sending pictures

  • larachurchil Sep 30, 2010

    It has been an hour and no response. Are you still there?

  • larachurchil Sep 30, 2010

    Yes. Changed timing belt previously-no problem. Then changed variable timing cam gear-which has no markings for alignment- and after replacing it-no go!

  • larachurchil Sep 30, 2010

    We have the problem that we replaced a marked variable cam gear with one that has no timing marks notched in it whatsoever. Therefore, making it hard to know which way it goes on. We could have it off by 180 degrees etc... Also, mechanic thinks that when the old cam gear was taken off-because it had no dowl pin in it -that the cam may have gotten moved with the pressure of the springs...

  • larachurchil Sep 30, 2010

    The left one-the variable timinin one.

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3 Answers

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  • Volvo Master
  • 75,117 Answers

U must lift the distributor up far enough to turn rotor, then find #1 cylinder compression stroke and then set the rotor so it points towards that plug wire terminal of #1 cylinder, this is called rough timing, just remove the #1 spark plug and turn the engine over until u feel pressure at the plug hole, then slowly bring it around in normal direction of engine rotation so the timing marker is at TDC or zero degrees, once you have this you can set the timing..

Posted on Sep 30, 2010

  • larachurchil Oct 01, 2010

    This vehicle does not have a distributor. It also has coil packs.

  • yadayada
    yadayada Oct 01, 2010

    next time give model and year of the car, i assumed it had a distributor because I had no info it didn't.

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  • Master
  • 1,016 Answers

Hi,

Could you give me the year/model etc of this vehicle, then I can help you.

Thanks

Jason

Posted on Sep 30, 2010

  • 4 more comments 
  • Jason Maurirere
    Jason Maurirere Sep 30, 2010

    Ok,
    This is a very detailed process so I will send you pics of timing marks and position of cam sprockets to cam shafts.

  • Jason Maurirere
    Jason Maurirere Sep 30, 2010

    Yes I just had a problem my program it is all going now, sorry

  • Jason Maurirere
    Jason Maurirere Sep 30, 2010

    Have you made sure that the Variable Valve Timing Valve is connected properly and is also sealing correctly?

  • Jason Maurirere
    Jason Maurirere Sep 30, 2010

    Here is a pic of it. And of the timing marks etc.



    The above is a pic of the VVT valve.



    This is a pic of your timing marks.

    Let me know if you need more information, all timing is taken from the #1 cylinder at BTDC.


  • Jason Maurirere
    Jason Maurirere Sep 30, 2010

    Ok the best an only option you have is too lay both of the cam gears on top of each other exactly.
    Then put a dot punch marking where the old markings are that way you can then time it.

  • Jason Maurirere
    Jason Maurirere Sep 30, 2010

    If you look at the gears from the front which cam gear did you replace the left one or the right one?

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  • Master
  • 382 Answers

To be honest you may end up taking this car to a dealership to have the timing set. Anytime you mess with timing belt/chain cam gears on a volvo, you need a special Volvo tool to lock the cams down. This is why alot of independent shops will not service the timing belts on a volvo. But i will try to explain this a little to you. If you are lucky the marks will be there. On the top cover after pulling off the front cover there are notches in the black cover and in the gears. On the crank there are marks on two of the high spots and in between that is TDC. Set the cam gears up and then look down to identify the marks on the crank gear I hope this helps

Posted on Sep 29, 2010

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