Hi Jeff,
Until you've had one of these apart, you can't believe how it's designed...
The lower king pin collar is pinned to the lower fulcrum pin, thus forcing
the fulcrum pin to rotate within the lower a-arm assembly.
The fulcrum pin is threaded and threads into the lower a-arm. During
suspension travel, the fulcrum pin rotates within the greased a-arm threads.
Normally, the fulcrum pin and the a-arm threads wear out, and both need to
be replaced. You can replace the entire a-arm assembly or send it out to
Apple Hydraulics or another vendor to have new bearing assemblies
brased-in... a few brave souls have brased their own and there are some
'threads' in the archives about this.
I sent my a-arm to Apple and was pleased with the results.
Hope this helps,
Richard Shipman
'74 MG Midget
'68 MGBGT
'58 Morris Minor 1000
'85.5 Porsche 944 (MGBGT wannabe)
< Does the lower king pin collar simply ride on the lower fulcrum
pin, metal to metal? And if so, does the king pin collar wear as much as
the fulcrum pin?>
|