[DeTomaso] July POCA newsletter and distributor installation

Thomas Tornblom Thomas.Tornblom at hax.se
Thu Jul 7 21:01:12 EDT 2011


I just flipped through the July newsletter and read through the article 
on on Duraspark 2 modification.

The article mentions that the gear should have a 0.010" clearance to the 
block boss and should never touch the block. This is just plain wrong 
and will potentially destroy your distributor. The boss acts as a thrust 
bearing, and it is what takes up the axial loads of the distributor 
shaft from the load of the oil pump through the spiral gears.

The Ford document mentioned in the article has this warning:

---
WARNING:
IF THE DISTRIBUTOR GEAR IS INSTALLED INCORRECTLY, IT MAY BE FORCED DOWN 
AGAINST THE SUPPORT IN THE BLOCK OR MAY BE HELD UP AWAY FROM THE SUPPORT 
IN THE BLOCK. BOTH CONDITIONS WILL CAUSE DAMAGE TO THE BLOCK AND OR THE 
BLOCK AND GEARS. WHEN THE GEAR IS PROPERLY INSTALLED, THE CUT ON THE 
GEARS AND THE DIRECTION OF ROTATION WILL PULL THE DISTRIBUTOR GEAR DOWN 
AGAINST THE SUPPORT (DISTRIBUTOR GEAR THRUST FACE) IN THE BLOCK.
---

Thomas



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