Re: Pug clutch vario vs clutch pulley

cheetahchrome . /
This single post is part of a larger thread. Start from the top or view this post in context.

Yes to what graham says that the stock vario clutch is ok for stock and middle of the road builds. Where it begins to suffer is when you start adding pipes and really twisting the RPMS up tight,

The components begin to fail in three ways. First the composite clutch disc crack and break from excessive RPM or the locking ears start to shear off the disc from mods to the weights in the variators engagement point or the removing of more than two thrust balls from the thrust plate to delay engagement and gain initial higher RPM at take off.

pugdiscsnap.jpg

Another way the stock variator clutch well fail from performance mods is that the higher RPM stresses the clutch locking ring and causes it to snap followed by the shearing off of all the clutch disc ears. This is especially prone to happen when the builder has removed the primary starter clutch shoes to once again gain that sweet sweet clutch slip off the line .

pugsnappedring.jpg

I have in the past built in some extra support post on the locking ring to help keep the locking ring from warping and snapping due to the empty space left by the missing starter shoes. It worked good for a long time but eventually snapped.

The third week link is the the clutch bells center double"D" hole that locks onto the crank shaft. Variator mod and high RPM Wheelie engagement will cause the center of the bell to "round out" or to snap the center out completely.

I have read on here that people have had success avoiding the "rounding out" by tack welding the double"D" washer to the clutch bell as it gives it double the surface area connecting to the crankshaft.

That method is great but it wont help when the cent decides to just snap out. It's all going to go.

This single post is part of a larger thread. Start from the top or view this post in context.
Subject Written By Posted
  Pug clutch vario vs clutch pulleyTopic by: Scottee doesn't know. Scottee doesn't know. 10/11/21 12:58PM
  Re: Pug clutch vario vs clutch pulleyRe: 666 420 666 420 10/11/21 02:58PM
  Re: Pug clutch vario vs clutch pulleyRe: Graham Motzing Graham Motzing 10/11/21 03:28PM
  Re: Pug clutch vario vs clutch pulleyRe: Scottee doesn't know. Scottee doesn't know. 10/11/21 09:22PM
  Re: Pug clutch vario vs clutch pulleyRe: Toledo Riot Toledo Riot 10/25/21 10:25AM
  Re: Pug clutch vario vs clutch pulleyRe: Scottee doesn't know. Scottee doesn't know. 10/25/21 01:56PM
  Re: Pug clutch vario vs clutch pulleyRe: Toledo Riot Toledo Riot 10/28/21 11:56AM
  Re: Pug clutch vario vs clutch pulleyRe: Graham Motzing Graham Motzing 10/28/21 07:27PM
  Re: Pug clutch vario vs clutch pulleyRe: cheetahchrome . cheetahchrome . 11/06/21 09:45AM
  Re: Pug clutch vario vs clutch pulleyRe: cheetahchrome . cheetahchrome . 11/06/21 09:51AM
  Re: Pug clutch vario vs clutch pulleyRe: Graham Motzing Graham Motzing 11/06/21 02:39PM
  Re: Pug clutch vario vs clutch pulleyRe: Scottee doesn't know. Scottee doesn't know. 11/06/21 10:02AM
  Re: Pug clutch vario vs clutch pulleyRe: cheetahchrome . cheetahchrome . 11/06/21 10:09AM
  Re: Pug clutch vario vs clutch pulleyRe: cheetahchrome . cheetahchrome . 11/06/21 10:11AM
  Re: Pug clutch vario vs clutch pulleyRe: cheetahchrome . cheetahchrome . 11/06/21 10:13AM
  Re: Pug clutch vario vs clutch pulleyRe: Scottee doesn't know. Scottee doesn't know. 11/06/21 10:19AM
  Re: Pug clutch vario vs clutch pulleyRe: Scottee doesn't know. Scottee doesn't know. 11/06/21 10:16AM

Want to post in this forum? We'd love to have you join the discussion, but first:

Login or Create Account