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1990 Mazda B2200

 

Question: head bolts

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HVAC54, 2.2L 4 Cylinder, Conroe, TX, January 25, 2011, 21:04
 Rookie

when pewrforming an complete overhaulon a 1988 mazda b2200 engine. should the head bolts be replaced and why. the bolts are not torqued like a ford where you streach the bolts.like 55 pounds then turn 105 degrees. i keep getting mixed answers depending what book you read. hey guys thanks for your time hvacsvc@live.com

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  • Answer #1

    Superbob January 26, 2011, 11:33
     Master

    1990 Mazda B2200 is not related to a Ford like the later B-Series trucks which are relabeled Rangers so there is no reason to expect Ford procedures. Mazda sold some trucks to Ford which were relabeled 'Ford.' The 80's Ford Courier was a Mazda, for instance, but I don't believe that your truck is a relabeled Ford and there has no similarity to a Ford sold in this country.
    This engine does not use stretch bolts, and you don't have to routinely replace them, but you need to retorque the head after a few warmup and cooling cycles. Head gasket leaks are a likely problem after a few months to a year, if you don't follow the retorque procedure.
    Torque should be done in 20 lb/ft steps until you reach the specification.
    Initial torque : 59-64 lb/ft.
    final torque: 64 lb/ft

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    Visitor, January 26, 2011, 13:39

    Thanks for the info, what i meant on that ford think, is we rebuilt a 5.4 that used alium heads and we had to buy new head bolts and then stretch them. I though that with this mazda being alium head that the bolts had to be replaced like the ford becaused the bolts had to be stretched. But all thru the torque specs never found any thing about being replaced, found a auto parts place that said yes they have to be replaced even if they were not stretched. Found the bolts, then found out you had to buy the washers seperate, and they were higher than the bolts. Thanks for your time and trouble.

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