rear wheel hub torque pressure

[phil pullinger]

hi guy's
this is a first for me asking for advice, but i would appreciate some clarification on the torque pressure required on the rear wheel hub.
the recommended pressure being 217-230 ft/llb's or 300n/meters .thats a lot of pressure in my oppinion.
that is the pressure recommended in the bently book for the 3.2 carrera. there is no mention of the super sport/turbo body.the reason
i am asking is because the super sport has two set's of roller tapered bearing's with seal's the 3.2 has a sealed unit.
any help would be of much assistance

 

[Guest]

From Pelican

From the Turbo manual: (verbatim)

ADJUSTING REAR WHEEL BEARINGS - The spacer between both rear wheel bearings is designed to be shortened in length permenantly when tightening the castle nut more than a certain torque (normally more than 300 Mn / 217 ft.lbs.)

1. Tighten castle nut to 20 kpm (145 ft. lbs.). Check axial play (specification: more than 5/100 mm). Replace spacer, if length had already been shortened (axial play less than 5/100mm).

Note
Dial gauge holder must be mounted on trailing arm or spring strut.

2. Tighten castle nut to 30 kpm (217 ft. lbs.). Re-check axial play.

3. Continue turning nuts until axial play of 4/100 to 1/100 mm is reached (while turning the torque could rise up to 45 kpm/325 ft. lbs.).

Note
Check play several times while tightening and also observe the cotter pin hole.

4. Insert cotter pin. Loosen nut when nut is offset to cotter pin hole. Tighten nut to specified torque (30 to 32 kpm/217 to 231 ft.lbs.) and then tighten further until nut can be locked.

5. Check axial play. Play must not exceed 5/100 mm. Repeat adjusting procedures from point 3, if play is greater

Note
No axial play can be accepted, if a wheel bearing friction force of max. 1,5 kp (3.2 lbs.) is not exceeded with cotter pin inserted and tightening torque of at least 32 kpm (231 ft. lbs.) (adjustment of axial play and possibly further tightening to next cotter pin hole).

Hope it helps

Roy

 

[phil pullinger]

thank's roy m
very much appreciated ,the bently book is a great source of information as i have said, but a little clarification from someone else reasures me more.i would't want the wheels coming off.