Stub Axle Nuts - Thread and Torque

Suspension related stuff goes in here.
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ITA124
Posts: 128
Joined: Wed Nov 12, 2008 1:51 am
Your car is a: 1976 Fiat 124 Spider
Location: Sydney, Australia

Stub Axle Nuts - Thread and Torque

Post by ITA124 »

Hi All,

I have done this a few times before, but thought I get your input. Can you guys confirm this

Thread:
Left Hand hub has a RH thread
Right Hand hub has a LH thread.
This is what the book says, but looks odd. When I turn the wheel. The nut looks to undo.

Torque:
Preload to 15ftlbs
release and torque to 5ftlbs
Back off 30 deg (1/2 a flat)
This leaves the nut only finger tight. When the tabs are knocked in, I can lightly jiggle the nut.

Is this what you guys do?
Paul


Fiat 124 Spider (Big Red Car. So my son tells me)
Toyota Corolla AE86 (Fiat as a daily driver? Not)
Fiat 128 Rally (Why did I sell this car?)
Fiat 124 AC (An iron ore waffle shaped like a 124. Donated to Sims)
Fiat 128 SL (First fiat)
mdrburchette
Posts: 5754
Joined: Wed Jan 25, 2006 5:49 am
Your car is a: 1972 Fiat 124 Sport
Location: Winston-Salem, NC

Re: Stub Axle Nuts - Thread and Torque

Post by mdrburchette »

It's opposite of what you would think so that is correct. They're not going anywhere once you bend the tab in. I can't find torque specifications in my book so maybe someone else will chime in.
1972 124 Spider (Don)
1971 124 Spider (Juan)
1986 Bertone X19 (Blue)
1978 124 Spider Lemons racer
1974 X19 SCCA racer (Paul)
2012 500 Prima Edizione #19 (Mini Rossa)
Ever changing count of parts cars....It's a disease!
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kmead
Posts: 1069
Joined: Sat Aug 02, 2008 9:24 pm
Your car is a: 1969 850 SC 1970 124 SC 85 X19
Location: Grand Rapids, MI

Re: Stub Axle Nuts - Thread and Torque

Post by kmead »

ITA124 wrote:Torque:
Preload to 15ftlbs
release and torque to 5ftlbs
Back off 30 deg (1/2 a flat)
This is what one does, there are a few things left out:
Rotate the hub in both directions 4-5 rotations in each direction to seat the bearings while it is at the heavier torque.
Another thing left out is checking the runout which shouldn't exceed .005" which can only be seen with a dial indicator. If it does exceed that amount they suggest redoing the entire process.

It is a bit fussy, I confess I have tended to run my car a bit tight with no ill effects (so far). Be sure and use new nuts each time.
Karl

1969 Fiat 850 Sports Coupe
1970 Fiat 124 Sports Coupe
1985 Bertone X1/9
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kmead
Posts: 1069
Joined: Sat Aug 02, 2008 9:24 pm
Your car is a: 1969 850 SC 1970 124 SC 85 X19
Location: Grand Rapids, MI

Post by kmead »

Dbl Pst
Karl

1969 Fiat 850 Sports Coupe
1970 Fiat 124 Sports Coupe
1985 Bertone X1/9
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