I brought a Farmall 400 last fall since it had an aftermarket 3pt hitch. Tinkered away on things over the winter. Got a land grader to do the driveway. Hooked up, went out graded. It worked great, but noticed that oil was coming out the dipstick. Drove into the shop, removed the dist & hyd pump. Removed the gear from the pump, found the hyd pump shaft & gear worn out. Somebody had pump shim stock to take up the slop. Had read about cam gear being loose, of coarse this one is. Stripped down front of the engine to found the nut finger tight, missing couple teeth on the cam gear. Key way worn right out in the gear & the camshaft. Have a parts SW6, stole the cam, gear, lifters out of it. Ordered seals, gaskets from local caseIH dealer. I thought had brought every book about the 264/281 from Binder books. All the manuals I have don't list this info. I'm looking for torque specs of crankshaft pulley nut(2.5" nut), camshaft gear nut, hyd pump nut, idler gear bolt. Thanks