Pagoda SL Group

W113 Pagoda SL Group => Drive train, fuel, suspension, steering & brakes => Topic started by: tel76 on November 08, 2009, 11:03:15

Title: Torque settings
Post by: tel76 on November 08, 2009, 11:03:15

Can someone please inform me what the torque settings are for the following-
1- The rear axle crown wheel to carrier.
2- The LH axle caseing to centre section(the part that holds thecrown wheel and pinion).
I have read conflicting info:on this point,with regard to the large bolt at the front of the crankshaft,which way should the washers fit, face to face or opposed?

Title: Re: Torque settings
Post by: Jonny B on November 08, 2009, 13:54:29

Not sure exactly what items you are referring to, so here are the torques (in mkp) from the 1969 data manual for 250 SL/ 280 SL:

(Conversion 1mkp = 7.233 ft lbs)

Hex head screws for mounting crown wheel - 8
Grooved nut for bearing of rear axle shaft or rear axle shaft flange - 20
Hex nuts of fitted bolts for mounting brake anchor plate or seal ring holder resp at rear axle tube - 2.5
Hex head screw or grooved nut resp. at connection bolt - 12
Hex head screw at the top of the rubber mounting for support of rear axle mounting - 18
Hex head screws (clamping screw) in cover of rear axle housing and in support of rear axle mounting - 4.5
Hex nut resp. for mounting thrust arm at frame floor - 10
Hex head screw or castle nut resp. for mounting thrust arm at rear axle tube 20
Hex head screws for mounting cover at front of rear axle housing - 3.5
Hex head screws for mounting of left rear axle tube with bearing flange at rear axle housing M8 - 2.5, M10 - 5
Tightening bolt for mounting sliding joint at rear axle shaft wheel - 6.5
Hex head socket screws of bearing caps for seat of brake support at rear axle tube 2.5
Hex head screw for torsion bar support at rear axle tube - 2.5

Title: Re: Torque settings
Post by: Naj ✝︎ on November 08, 2009, 20:49:19

Quote from: tel76 on November 08, 2009, 11:03:15

I have read conflicting info:on this point,with regard to the large bolt at the front of the crankshaft,which way should the washers fit, face to face or opposed?

I believe there was some confusion on the 230 SLs where there was a mod from a short bolt and one washer to a longer bolt and three washers.

On a 280, all the crowns of the washers should face the bolt head.

naj