WDV Posted April 30, 2018 Report Share Posted April 30, 2018 Does anybody have any experience with Powertune branded parts? Bought a rear hub trunnion bushing repair kit from a reputable supplier. Compared it with the old set, and everything is off by about 1-2 mm. The inner steel tube sits very lose in the blue bushing. Don’t think you should see light shining through, not really filling me with confidence. Also bought some Powertune bearings, decided to google that – most links screams avoid. (https://www.google.com/search?q=powertune+bearings Link to comment Share on other sites More sharing options...
Anglefire Posted May 1, 2018 Report Share Posted May 1, 2018 I know nothing about trunnions, so this could be way off base - but does the steel tube crush on fitting and fill the available space? This is based on the sizes of the old and new in the second picture. Link to comment Share on other sites More sharing options...
Clive Posted May 1, 2018 Report Share Posted May 1, 2018 Powertune is effectively a reseller of imported goods, probably gets batches made up etc. Infuriating that something cannot be made correctly. They need to be returned, and the trader needs to have a look at the rest of their stock, it isn't fit to use (Mark, the tubes do not crush, should be a nice snug fit. Bushes made from Nylon, though polybush is available, an option) 1 Link to comment Share on other sites More sharing options...
Pete Lewis Posted May 1, 2018 Report Share Posted May 1, 2018 i agree,, MYTH what is often referred to as a crush tube It is actually the exact opposite its to prevent the bushes being crushed ,it controls the fitted width of the bushes and clamps against the fabricated or cast parts of its component the tube is clamped up tight and rotates within the bush , its not to be left loose to pivot in its component, that just wears a oval fixing hole . so its really an anti crush tube /spacer . many kits have the wrong sized look alike spec dust sealing washers , keep the old ones if they are intact .invaluable Pete Link to comment Share on other sites More sharing options...
WDV Posted May 12, 2018 Author Report Share Posted May 12, 2018 @Pete Lewis True and good advice. True, the seal seems fine, but I had new ones and thought I gone so far, I might as well use them. My washers were bit sad, seen a new trunnion kit is £7, I will replace those as well - big mistake. I order 3 different once from 3 different suppliers and they are wrong in 3 different ways. Finally got a set of superpro from MossBors which is a different washerless design, but not pretending to be something they are not, that seems it will do the job. Link to comment Share on other sites More sharing options...
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