unusualfabrication
+1y
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1997z24 said:
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thacru78 said:
So the pivots are metal on metal...no bearings of any sort?
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Correct, sort of- it is a greased contact. Remember, your engine runs "metal on metal" as well- quite amazing what an oil/grease film will do ;)
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Your crank and cam actually run on bearings and the pistons use rings, all which are designed to do what they do and last hundreds of thousands of miles. They are also machined to tight tolerances to preform well. Your engine also has pressurized oil pumping though it which returns to a sump and slightly cool before it runs back through the motor. So your analogy is kind of comparing apples to oranges. Even if you put grease in it the grease is going to have a tendancy to push away from the contact side. Once the grease is gone it'll be metal on metal contact and seeing as its not hardened the metal will wear fast causing slop in the bushings. With the wheel mounted on the outside of the lever there will be a tremendous amount of force trying to twist it and then that force will be applied to the pivot. Now with the rear tires, since they face forward on the lever if there is any slop the tires are going to try and steer the trailer.
That being said, the trailer is cool, and the work looks good! Those are just the things I would be worried about.