Author Topic: Subframe Bolts  (Read 363 times)

steventon95

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Subframe Bolts
« on: 29 May 2024, 06:33:56 PM »
Hi All,

I'm thinking of replacing the subframe bushes and will probably need to replace the bolts. What is the wisdom for torque? I suspect it is quite serious ...

Best

Jim

sgould

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Re: Subframe Bolts
« Reply #1 on: 29 May 2024, 09:37:34 PM »
The manual says 100Nm + 45ยบ.  So yes, probably as tight as you can get it!

The smaller subframe plate is a straight 63Nm. No extra turning.
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carrera

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Re: Subframe Bolts
« Reply #2 on: 29 May 2024, 10:41:24 PM »
I'll confess that having done some subframe bushes on an OG, after doing the subframe repair on the NG which required an additional application of the breaker bar to silence it fully, I used the bar to tighten to FT  :)

The bolts for the rear plates did not get the same amount of leverage, being much smaller

I own at least six 1/2" torque wrenches.  ::)

I simply reused bolts as well, tightening to stretch is more important in engine applications than simple mechanical assembly
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steventon95

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Re: Subframe Bolts
« Reply #3 on: 30 May 2024, 05:00:54 PM »
I haven't started to get underneath yet, but are there four bolts (M12) or six? Are the bolts for the aft ones different?

carrera

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Re: Subframe Bolts
« Reply #4 on: 30 May 2024, 10:44:01 PM »
Six subframe bolts, six smaller bolts for the plates

16mm 18mm 20mm IIRC
9-5 Aero Estates, 2002 Cosmic Blue, 2003 Steel Grey, 2003 Graphite Green, 2004 9-5 Glacier Blue 2.0 saloon, 2004 Nocturne Blue 2.2 diesel estate, 2006 & 2008 Black Aero saloons, 1998 9000 CSE with Aero engine, 9-5 NG Aero XWD Turbo4, 9-5 NG Aero XWD TTiD