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Guest
08-22-2012, 07:10 PM
Ok, not an issue but anyone know the official lug nut torque values and do they change for wheel size? Only asking as it wont be long till my winter set go on and Ive gone down from 17s to 16s. Googled showed a few values! Cheers

SeaDawg
08-22-2012, 08:48 PM
Ok, not an issue but anyone know the official lug nut torque values and do they change for wheel size? Only asking as it wont be long till my winter set go on and Ive gone down from 17s to 16s. Googled showed a few values! Cheers

I thought 'Official' was 75 ftlbs for Alloy and 63 ftlbs for Steel wheels on FIAT's. That's for us commoners withOUT Abarth's. Perhaps your Alloy values are higher.

Fiat500USA
08-23-2012, 01:08 AM
I've posted this before (http://www.fiat500usaforum.com/showthread.php?5694-Service-manual-and-torque-specs-needed&highlight=wheel+bolt+torque), but here they are again*:

Wheel Mounting (Lug ) Bolt - Steel Wheels
85 Nm
63 Lbs-Ft
-------------------------

Wheel Mounting (Lug ) Bolt - Aluminum Wheels
100 Nm
75 Lbs-Ft

Wheel size not a factor.

*from the Fiat 500 Abarth repair manual-TechAuthority

jguerdat
08-23-2012, 09:23 AM
Off=topic but can you see if there's a torque spec for older Fiats? I had always thought the steel wheels on 850s and 124s were ~60 lb-ft but was told recently that was too high. If you have access to old data, I'd appreciate it. If not, no sweat - thanks anyways.