Thanks Thanks:  0
Needs Pictures Needs Pictures:  0
Picture(s) thanks Picture(s) thanks:  0
Results 1 to 1 of 1

Thread: Sump filter.

  1. #1
    Join Date
    Sep 2021
    Location
    Adelaide
    Age
    73
    Posts
    117

    Default Sump filter.

    Criticism is often levelled at the Brit Twins for a myriad of reasons, the XS is an unashamed copy of the Brit twins, seems they also included more than a few design floors in their efforts to emulate the Brits. The sump filter is an excellent example. Well, it's not really a filter, more of a strainer relying on flywire type material to strain the crap from the oil.

    The XS has needle roller big ends so lubrication depends more on volume rather than pressure. Cold the XS will develop around 10-12psi, hot and the pressure drops to around 5-6psi. Despite this the sump filter tends to tear, obviously not from pressure, so probably from the oil being swished around by the Crank and gears. The filter is a single layer flywire type material, the holes only being marginally smaller. The filter material is folded or corrugated for much of the periphery, but for some reason, Yamaha left a straight stretch around one of the corners. Without the folds the material is weakened and usually ends up tearing. just another of the XS650's design flaws.

    To fix the problem, I fashioned a guard around the corner in question, covering the flat section of filter material. Oil can still get through obviously as there is a small gap between filter material and guard and of course the filter is immersed in oil. This guard has worked well, leaving the sump filter intact and depriving Yamaha of dollars.
    Attached Images Attached Images

Similar Threads

  1. Old old transtig 180 surge filter
    By wasanne in forum WELDING
    Replies: 4
    Last Post: 4th Jan 2020, 01:49 PM
  2. Where to purchase a weld-in 4L60E auto transmission sump plug
    By Specialized29er in forum AUTO PARTS / Wanted, For Sale - HELP
    Replies: 10
    Last Post: 18th Mar 2018, 04:10 AM
  3. REM filter
    By th62 in forum METALWORK GENERAL
    Replies: 3
    Last Post: 8th Aug 2014, 08:55 PM
  4. Swarf filter
    By morrisman in forum METALWORK GENERAL
    Replies: 17
    Last Post: 9th Dec 2013, 07:36 AM
  5. Filter lense table
    By specialist in forum WELDING
    Replies: 1
    Last Post: 19th Jul 2008, 06:59 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •