Re: RE: Valve Clearances

[TrmpetDave@xxxxxxx]

In a message dated 7/9/99 1:05:17 PM, MRetherford@xxxxxxxxxxx writes:

<< If the valve is loosing clearance then the seat must be moving
further toward the cam.  If that is the case then the head itself is the
problem.  Loosing seats was a notorious problem on some factory heads for VW
air cooled motors especially type 4 motors.  It is a bad casting if this is
the case.  That makes the fix more expensive by a whole bunch.
	If the seat is moving then re shimming isn't going to fix the
problem only prolong it.  >>

I thought that a little tightening of the valves was normal in a new engine, 
due to expected wear and tear, which is why the first valve clearance check 
should be done fairly early in a high performance engine, which most 
motorcycles have. Thinner shims, where required should cure it.

 *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *   *
 The ST Mailing list is sponsored by the Unofficial ST Website
   http://www.TriumphNet.com/st for ST and Mailing List info

=-=-=-= Next Message =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=