myredracer wrote:
Reese says it is okay to add petroleum jelly to the cams to reduce noise. Clearly that would reduce friction so how is it that the DC is friction based?
Yes, Reese does say you can use Vaseline. The complete statement is:
QUOTE
9. Do not use grease on cam and cam arms. A light coating vaseline may be used to reduce noise. The Dual Cam was designed to use metal-to-metal friction. Heavy greasing of the cam and cam arm surfaces will affect performance. If noise is offensive, a very light coating of lubricant, such as Vaseline, may be used. Tongue weights over 1,200 lbs., may require a light coating of lubricant to reduce friction and prevent excessive wear.
UNQUOTE
(underline added for emphasis)
Using petroleum jelly but not using grease might seem contradictory, but it is not.
Grease is a relatively good lubricant which would reduce the fricton too much.
Petroleum jelly is a relatively poor lubricant which can be used for noise reduction with relatively little reduction in friction force.
Ron