| parrish | -- 05-30-2011 @ 7:10 AM |
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If the wheel bearings are properly packed with a good yellow fibrous grease (Sta Lub, for example), is the rear axle zerk intended to supplement that bearing grease? If a quick shot from a lube gun accomplished the job, no one would ever pull the drum to re-pack bearings, right?
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| supereal | -- 05-30-2011 @ 8:15 AM |
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That grease fitting is a holdover from the Model A and T days, and shouldn't be used. The roller bearings in the rear hubs require a special grease that ontains fibers. It is widely available as "heavy duty drum brake grease"., as you note. We buy the Sta-Lube brand. If you use a grease gun on those rear hub fittings, it is likely the wrong type of grease will be added and, if overdone, there can be enough getting past the hub seal to cover your brakes. Rear hub bearings arte often neglected because it can be a trial to get the drums off without the proper puller, such as the Winfield KRW repro. Poor manintenance usually results in galled rear axle housings requiring them to be machined and sleeved, an expensive and time consuming "fix".
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| JM | -- 05-30-2011 @ 6:28 PM |
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Those zerk fittings were eliminated in production somewhere around '39 I believe and replaced with a threaded plug. Shooting chassis grease in those zerks causes problems as mentioned by Super. Repack with fiber filled Sta-Lube at proper intervals to prevent excessive wear of wheel bearings and journals. JM
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| 42wagon | -- 05-31-2011 @ 3:18 AM |
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JM Those grease fittings are still on the rear axle of my 42. While I can't lay my hands on it right now, I believe the original 42 owners manual shows them and calls for the type of grease to be used (which is probably wrong). I agree with everyone else regarding the fibrous grease that the bearings should be packed with.
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