1992 Volvo 740 NON TURBO wagon - Interference or Non-Interference Motor

Discussion in 'Volvo 740' started by Rich Hall, Mar 26, 2009.

  1. Rich Hall

    Rich Hall Guest

    I have a 1992 Volvo 740 NON TURBO wagon. It has 210,000 miles on it an
    I keep it in great shape. The timing belt was last changed about twent
    thousand miles ago.

    However today the timing belt broke as my wife was going about thirt
    miles an hour. Everything just stopped and she was left at a dead sto
    in the middle of an intersection.

    Before I listen to what the mechanic has to say I'd like to know if m
    1992 Volvo 740 non turbo wagon has a *non interference* engine. It's m
    understanding that if it *-does-* no damage has been done to th
    engine.

    I'd read on the internet that 1992 was the last year Volvo made no
    interference engines. I'm hoping beyond hope that's accurate.

    Any help would be greatly appreciated.

    Thanks
     
    Rich Hall, Mar 26, 2009
    #1
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  2. Rich Hall

    James Sweet Guest


    It depends on what engine is in it. The 8 valve engine is
    non-interference, though the clearance is much tighter than the turbo
    motor and there is some chance of contact if there is a lot of carbon
    buildup. The 16 valve engine is interference and major damage is nearly
    certain. IIRC both were available that year.
     
    James Sweet, Mar 27, 2009
    #2
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  3. Rich Hall

    Perk Guest

    I'll defer to Mr. Sweet to correct me but I think you have it backwards
    in that it may have been the last year for the "interference" engine
    (B234F).

    Thanks to all this group for the always helpful information,

    Perk :)>)
     
    Perk, Mar 27, 2009
    #3
  4. Rich Hall

    James Sweet Guest


    The B21, B23, and B230 are non-interference. The B234 is interference,
    as are the "whiteblock" engines used in the later cars. A good rule of
    thumb is that if it has more than one camshaft, it's an interference engine.
     
    James Sweet, Mar 27, 2009
    #4
  5. Rich Hall

    ransley Guest

    20,000, I would look into the mechanics and belt manufacturers
    warranty, something aint right to go at 20,000.
     
    ransley, Mar 27, 2009
    #5
  6. Rich Hall

    sq1euo Guest

    It's diffrent between 2.0 B200F or 2.3 B230F, B230F is non interference, but
    smaller B200F is interference.
     
    sq1euo, Mar 27, 2009
    #6
  7. I would worry why the belt broke after such a short life .If you haven't got
    16 valves your ok .But question why the belt broke in 20 thousand miles .
     
    Jon Robertson, Apr 26, 2009
    #7
  8. Rich Hall

    James Sweet Guest


    I would check the tensioner for wear and damage, as well as the
    sprockets, and make sure everything was put together right. Could have
    been a defective belt, but I haven't yet run into one.
     
    James Sweet, Apr 26, 2009
    #8
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