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timing belt broke 700 1989

posted by  Blindboy on  Sun Jun 21 12:37 CST 2009
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last visit: Tue Oct 21 17:56 CST 2014
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1989 740 8valve rex regina 230 f engine.
How do I know that camshaft is in the right position? is there anyway for the timing marks to line up&the cam to be 180degs out of phase?








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    timing belt broke 700 1989

    posted by  rstarkie on  Sun Jun 21 14:03 CST 2009
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    last visit: Fri Oct 24 10:14 CST 2014
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    The link to this image is easy to overlook in the FAQ's concerning timing belt replacement.

    http://www.brickboard.com/FAQ/700-900/B230FTimingBeltAlignment.htm

    Randy








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    timing belt broke 700 1989

    posted by  SpazMan on  Sun Jun 21 13:21 CST 2009
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    last visit: Tue Aug 14 21:06 CST 2012
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    More experienced people than I will probably post in short order, but if this happened to me I would try this. When cylinder 1 is at TDC it is at a compression stroke. With the plugs removed, rotating the crank with a ratchet back and forth will show you very clearly if it is at the compression stroke by noisily breathing in or out. Once you know that everything is 'in phase,' getting the TB on using the reference marks should be easy.

    Ari








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      timing belt broke 700 1989

      posted by  Blindboy on  Sun Jun 21 15:59 CST 2009
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      last visit: Tue Oct 21 17:56 CST 2014
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      Thanks ,Shortly after I posted this ,I found it in a 240 engine post that it will work out if the cam is spot on &the crank sprocket is inline w/the engine block mark.
      I thought it was possible to be 180deg away.
      Those guides for replacing a belt only mention that yr.taking off one belt&replacing it.They don't specify what to do if it breaks.








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        timing belt broke 700 1989

        posted by  mmal231294 on  Mon Jun 22 03:31 CST 2009
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        last visit: Fri Mar 18 12:34 CST 2011
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        The belt breaking is no biggie, no damage done. If they havent been replace recently you really should consider replacing the V-belts(a/c,p/s and alternator) and the water pump as the belts have to come off and the water pump will be fully exposed. Also consider doing all three oil seals as it is only a little more work whilst you are in there(and they are like 3$ each). It'll take you 3 hours plus the first time. To get the crankpulley off you will either need a crank hold tool or use the "rope method". Read and re-read the FAQ's on the topic. Good luck!








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          timing belt broke 700 1989

          posted by  Lummer57 on  Wed Jun 24 00:53 CST 2009
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          last visit: Thu Oct 28 03:22 CST 2010
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          Rather then crank holding tool I recommend the rope trick(see FAQ). I have used this method/trick twice now. Works great. Agree that while you have front area apart you should do belts, seals, and water pump. Your total for everything (pump, seals, belts)should be under $100 and time wise maybe adds 1/2 to 1 hour to job.
          --
          ' 88 740GLE auto wagon nearly 195,000 and ' 87 240DL auto sedan nearly 135,000







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