Wheel nut taper angle?
- Peter_n_Margaret
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And is the spec for the rims identical?
I would like to get a counter sinking tool and clean up the rims.
Trying to measure the nuts and it appears that the included angle is a tad over 90 degrees which makes little sense.
Cheers,
Peter
Cheers, Peter.
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- John and Bronwyn
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I think this is a standard light truck design? Alloys will be different (probably 60 degrees).
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- Joseph Baz
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Cheers,Joe
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- Joseph Baz
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Cheers,Joe
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- John and Bronwyn
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Not sure they were original - they are a large nut, 28mm across flats. I don't have others to compare them with.
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- Peter_n_Margaret
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I have some "as new" nuts. They are close to 90 degrees, but not exactly 90 degrees. Several degrees different.
That is what is causing my confusion.
Valves and valve seats are typically half a degree different. I wondered if wheel nuts and wheels are the same and what the specifications actually are......
Cheers,
Peter
Cheers, Peter.
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- Joseph Baz
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Cheers,Joe
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- Peter_n_Margaret
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Thanks Joe, but 89 is not 90 degrees, and is the wheel the same?Joseph Baz wrote: Peter,John was spot on with the angle.
Cheers,Joe
I would really like to see some specifications.....to be sure, to be sure.....
Cheers,
Peter
Cheers, Peter.
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- Lang
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Does not help you I know but when I fitted the Ford alloy rims I wanted to keep the original steel wheels as an option so had the alloys reamed to the OKA nut angle. They were considerably different. Only problem is the alloys are thicker than the steels. For some reason the back studs are longer. Often have comments that the front nuts are not done up because the thread does not quite reach the top of the nut. I figure there is still plenty of grip length.
The engineering shop said 90 deg for the OKA taper (measured off the sample old nut I gave them.)
Lang
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- Peter_n_Margaret
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I have heard that it is a legal requirement that the nut goes all the way onto the stud.
Who was it that machined a tad off the nuts to comply with that?
Cheers,
Peter
Cheers, Peter.
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- Lang
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It was an engineering shop in Paisley Ave Lawnton - will get their details.
Lang
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- John and Bronwyn
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Peter_n_Margaret wrote: I have heard that it is a legal requirement that the nut goes all the way onto the stud.
During 191's recent wheel changeover, I was told minimum requirement is 8 threads fully engaged.
Stud size is 5/8 UNF 18 tpi.
For this size stud the nearest I have been able to find is about 150 ft-lbs (200 N-m) tightening torque, based on standard engineering practice for an (assumed) grade 5 bolt. Does anyone have a better figure?
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- TR
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The LT service manual, Section 0 Shedualled Maintenance Information page 10, gives the same torques but elaborates lubricated to threads and faces.
Tim
OKA XT 124
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- Peter_n_Margaret
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Yep.TR wrote: The XT service manual, Section 3 General Information page 5, specifies Wheel Nut torque to be 120 lb ft (161 Nm) Lubricated.
The LT service manual, Section 0 Shedualled Maintenance Information page 10, gives the same torques but elaborates lubricated to threads and faces.
Tim
OKA XT 124
Note "lubricated" - Most unusual.
Cheers,
Peter
Cheers, Peter.
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- dandjcr
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What's the recommended product?
I wouldn't want a wheel coming loose through misinterpretation.
David
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- TR
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Tim
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- Peter_n_Margaret
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Cheers,
Peter
Cheers, Peter.
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- OKAPETE
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Blessings. Pete.
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- OKA 138
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Cheers Dave
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- Joseph Baz
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Cheers,Joe
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