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Connecting rod bolts torque

Hello all,
I have a 1978 911 sc

I'm ready to torque my connecting rod nuts to the crank shaft but I'm not sure if it's:

1. Torque bolts to 14.7 lbs
2. 90 degree

Or

1. Torque bolts to 14.7 lbs
2. 90 degree
3. Another 90 degree

Thank you
Old 08-09-2016, 06:37 PM
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Per Porsche Tech Manual for a 3.2

M10 X 1.25 = 20Nm plus (1) 90 degree torque angle ( +/-2 degrees )

But please wait for someone with your year to confirm.

Credit to KTL for sharing the info.
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Old 08-09-2016, 08:05 PM
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Specify what type of Conrod bolts......

Quote:
Originally Posted by FRANKENSTIEN View Post
Hello all,
I have a 1978 911 sc

I'm ready to torque my connecting rod nuts to the crank shaft but I'm not sure if it's:

1. Torque bolts to 14.7 lbs
2. 90 degree

Or

1. Torque bolts to 14.7 lbs
2. 90 degree
3. Another 90 degree

Thank you

Frank,

Nobody would be able to advise what torque value you would need without knowing the kind or type of rod bolts you are using. Porsche OEM rod bolts? ARP? Raceware? Etc. Please be more specific. Thanks.

Tony
Old 08-09-2016, 08:08 PM
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Aftermarket would definitely have their specific torque requirements. At least the ones I bought. :-o
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Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace
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Old 08-09-2016, 08:14 PM
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Manual is not up to date... Depending on bolts (BTW I would change 30years old ones)



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Old 08-10-2016, 03:12 AM
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I have new oem bolts from porsche.
Do I attempt the second 90 degree torque?
Old 08-11-2016, 06:21 PM
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Do the bolts match Figure 1 or Figure 2?
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Old 08-11-2016, 06:31 PM
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The above Technical bulletin is NOT applicable to your rod bolts. This if for updated 3.2/3.3/3.6 bolts which are 9mm. Your rod bolts are 10mm. Ignore the bulletin.
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Old 08-11-2016, 07:40 PM
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Good catch, Jeff.
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Old 08-11-2016, 08:37 PM
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Sorry, did not noticed which engine you have
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930 Turbo '81 Too many modifications to list
Old 08-12-2016, 03:44 AM
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