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Thread: Bolt Torque - clutch/flywheel bits

  1. 14th October 2009, 08:42 AM #1
    grnrvrs Guest

    Bolt Torque - clutch/flywheel bits

    With help from several forum members (Thanks Brian and Murray!) I now have the bits necessary to install by rebuilt LT95 w/TRB and clutch. About a year ago I imported a UK spec 110 to the US. The V8 had been replaced with a 4BD1T. The chaps in the UK who did the conversion cut many corners. Small diameter flywheel, associated smaller flywheel housing, small Range Rover V8 clutch...a bunch of SPOTs. I have acquired a rebuilt LT95 with TRB kit, proper Isuzu/LR bellhousing, proper flywheel housing, flywheel, clutch bits etc. and I'm ready to bolt it all back together.

    What I don't have is the torque specs for the flywheel to crank bolts and the flywheel housing to block. Anyone have the proper bolt torque specs?

    Cheers,
    Paul
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  2. 14th October 2009, 11:02 AM #2
    Bush65
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    Torque for flywheel to crank bolts is 105 to 125 ft lbs - threads lubricated with engine oil.

    Torque for flywheel housing to block bolts is 90.4 to 112.1 ft lbs.
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  3. 14th October 2009, 11:02 AM #3
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    isuzurover
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    Flywheel:
    29 lb.ft + 60-90 degrees.

    Flywheel housing:
    101.2+/-10.9 lb.ft.

    Inc has a pdf manual you can buy for a reasonable price to support the site.
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  4. 14th October 2009, 11:59 AM #4
    grnrvrs Guest
    Please forgive my ignorance, but what is Inc? Is that Dave's? Happy to support.

    Quote Originally Posted by isuzurover View Post
    Flywheel:
    Inc has a pdf manual you can buy for a reasonable price to support the site.
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  5. 14th October 2009, 12:16 PM #5
    Bush65
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    Quote Originally Posted by isuzurover View Post
    Flywheel:
    29 lb/ft + 60-90 degrees.

    ...
    Not in my manual.

    However those values for torque and angle appear adjacent to the flywheel on the same page, but refer to the connecting rod bolts.
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  6. 14th October 2009, 12:18 PM #6
    Bush65
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    Quote Originally Posted by grnrvrs View Post
    Please forgive my ignorance, but what is Inc? Is that Dave's? Happy to support.
    Yes, Incisor is Dave's name on the forum.
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  7. 14th October 2009, 01:30 PM #7
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    isuzurover
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    Quote Originally Posted by Bush65 View Post
    Not in my manual.

    However those values for torque and angle appear adjacent to the flywheel on the same page, but refer to the connecting rod bolts.
    I will double check when I am home tonight. However I am pretty sure. I think my manual also says Hylomar threadlocker for the bolts???
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  8. 14th October 2009, 03:19 PM #8
    Bush65
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    I had a look in a different manual and copied the following (see pic), which also says to apply engine oil, and tighten to 115 ft lbs.
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  9. 14th October 2009, 03:37 PM #9
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    isuzurover
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    Quote Originally Posted by Bush65 View Post
    I had a look in a different manual and copied the following (see pic), which also says to apply engine oil, and tighten to 115 ft lbs.
    What year is that manual? Mine is 1988.
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  10. 14th October 2009, 05:14 PM #10
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    isuzurover
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    I checked with Manuel and this is what he says (I was wrong on the hylomar):

    Carbon dated Sept. 1988.

    So which is right???
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