[quote=Wolfman]First, I know nothing about the Trac 16 specifically, but I know some about sheaves/pulleys/bearings.
Are they melting from friction from the halyard or in the bearing itself? (i.e. is the outside of the sheave melting until the center falls out, is the outside heating up causing the whole sheave to distort allowing the bearing to fall out or is the sheave melting around the bearing itself).
If it is the first two cases using a thinner halyard rope and spraying it with a silicon/teflon lubricant (any silicon spray will do) may help.
If you are melting from the bearing side then there is too much friction within the bearing or between the bearing and the pin holding it. In that case try some lithium grease on the sheave pin and or repack the bearings (if it isn't sealed) on a new sheave with some lithium grease and that may help. You can also try a non-ball bearing sheave just running on the greased sheave pin (although this could even make the problem worse but is worth a try if all else fails).
D.[/quote]
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