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rear subframe torque specs

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Old Feb 25, 2013 | 05:55 PM
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Default rear subframe torque specs

Hey everyone,

i am looking through the FSM and cannot find any info on the rear subframe, specifically the 19mm front bolts and the 4x 12mm rear bolts that bolt onto the body of the car. What are the torque specs for those? Has anyone found it in the FSM ? I just spent 20 minutes searching it.

cheers,
Marko
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Old Feb 25, 2013 | 08:42 PM
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IIRC the MK4 FSM states 136ft/lbs for the 19mm bolts going to the frame/unibody. As for the other, I cant say for sure but I think its 133ft/lbs.

Can anyone confirm?
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Old Feb 25, 2013 | 08:52 PM
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hm. maybe i need to find a mk4 fsm then, cause i can't find the subframe in the sc300/400 one. do u have an mk4 fsm by chance? pm me a link to it or add me on skype or somethin
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Old Feb 25, 2013 | 11:24 PM
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Check Supraforums.com, the one I had was from there. Im just going off memory cause the computer I had it saved on is long gone. There is a certain one that had all the specs, but a quick search there and you should find it no problem.
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Old Feb 26, 2013 | 03:48 AM
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i am really good at searching so i'll help.

i found 133 ft-lb for the ***MK3*** supra
http://www.cygnusx1.net/Supra/Librar...aspx?S=MA&P=12

and

found 129 ft-lb for the ****MK4**** supra.......... go to 'MAINTENANCE'...... on PAGE 7 (ma-8)
http://www.97supraturbo.com/1997%20S...aintenance.pdf
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Old Feb 26, 2013 | 07:44 PM
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there you go, the second link has it. I found this section in the SC400 manual now, the SC400 rear subframe calls out 28 ft lbs for the rear bolts (8) and the front ones call for 130 ft lbs (2)

this is on page MA-17.. very random.

the only thing i don't have now is the rear subframe mount, the big bolt that bolts the rear subframe mount to the subframe itself (big bolt.. probably 150-200 ft lb range)

Thanks!

Last edited by estomax; Feb 26, 2013 at 07:50 PM.
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Old Jun 20, 2018 | 11:30 AM
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The specs are hidden in the Maintenance section at the beginning of the Lexus aervice manual for SC300 & SC400s.

MY 1997 manual calls for rear subframe specs:

Subframe bolts to chassis (2 bolts) : 176 Nm 130ft-lbs
Subframe bracket to chassis (8 bolts) : 58 Nm 42 ft-lbs
Subframe bracket to subframe (2 nuts) : 76 ft-lbs

Last edited by 1997Soarer; Aug 12, 2018 at 08:06 PM. Reason: Found torque spec
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