OST-050 - a VERY special build

[oldeskewltoy]

(11-21-2018 05:51 PM)Nakilad Wrote:  Look like the locating hole has been moved a bit:

DING! very good eyes! the timing pulley was moved .006" off the pin




I also found out that AEM 4AG timing pulleys, and the OEM pulleys have the same setting for the exhaust cam (5 o'clock), but are NOT the same on the intake cam (12 o'clock), but are 2 degrees off.

DO NOT TRY THIS AT HOME..........


Using the AEM timing pulley (as a measuring device), a stock timing pulley, the stock backing plate, and the cam, I was able to determine the amount of change. Working with the AEM pulley to determine how much was needed to equal 3 degrees (108 to 111), and then using the AEM as a reference for a stock pulley, "adjusting" the stock pulley - that turned out to be .006". I then cut 2 pieces of an old .006" feeler gauge so that it would be held fast between the pin, and the bolt snout - length wise, and approximately .005" thicker then the cam gear so the tightened cam pulley bolt would keep it from moving width wise.


More to come.....