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Old 09-03-2002, 05:47   #1 (permalink)
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Question Cylinder Head

Hi All,

Would anyone know the torque spec's for a 3.9 head cylinder on a 89 Falcon?

Thanks for any info.
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Old 09-03-2002, 06:00   #2 (permalink)
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Stage 1: 40nM(30pounds/foot) starting from the two inside bolts tightening all the other bolts in a spiral outwards to the outside bolts.

After all bolts have been tightened to 40nM do the following

Stage 2: In the same tightening sequence, tighten bolts a extra 90 Degrees of a turn(1/4 Turn)

You'll need a decent size wrench to do the last step as they get bloody tight. Also it's a good idea to use new head bolts and of course new head gasket.
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Old 09-03-2002, 06:13   #3 (permalink)
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Cheers,
Was a bit unsure of the 90 degree part, assume you dont bother with torque wrench for 2nd stage,just a decent strong arm bar.
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Old 09-06-2002, 03:37   #4 (permalink)
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Correct; a torque angle gauge is also useful; it's easy to go over 90 degrees without one. Kinchrome sell cheap ones.
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Old 09-07-2002, 03:23   #5 (permalink)
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cool Thanks

thanks for info guys
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