IRS hub rebuild

[Aristides (Aristides Balanos)]

1. Outer axle nut is 100 ft/lbs, that’s what I did.
   Grease the splines and don’t use Loctite unless the splines are extremely worn.

And the IRS is out... with pictures

Stub Axle [DSC_0245] Sealant under the oil track. . [DSC_0246] Hubs installed. Castel Nut torqued at 100ft.lbs.

2. For the fulcrum/axle, you must already have some shims. A combination of them and some washers I believe will do the job.
   IIRC both are mounted with preload.

3. Hub seals modification:

And the IRS is out... with pictures

Hubs - Grease Vents modification Plugged center vent hole and drilled two holes outside the bearings, as suggested in Kirbert’s book. Now new grease will have to go through the bearings before it comes out from the vent holes and will actually lubricate the bearings. Hole distance from edge of Hub: 7mm M3 x 5 screw Chamfered the holes and added a small O-ring. [DSC_0191] [DSC_0192] [DSC_0224] [DSC_0194] [DSC_0222] [DSC_0223]

And the IRS is out... with pictures

Hubs Outer Fulcrum Bearings & Lip Seals Modification [DSC_0233_2] New Bearings, intermediate tube and preload shims . [DSC_0227] Spacer ring and extra ring made from 1.2mm wire. The lip seal (6.3mm) is thinner than the original felt seal so the extra ring is needed to bring the seal at the right height. Also works very well for the grease vents as the hole is inbetween the gap. . . [DSC_0233_1] SKF CR11124 Double Lip Nitrile Rotary Shaft Seal 1.125 x 1.624 x 0,250 inches. . [DSC_0…