jimf in mo
Member
I have two 172 cu in engines, one from 58 861 with a new style timing cover and Novi flyball style governor and the other from 59 961 with the old style 2 piece timing cover and Pierce type governor. Reading the FO20 IT manual seem backwards. But more to my questions. If replacing the old style governor with a new the book says to replace the lever assy., gov. fork and compensating rod assy. Both lever assy. look identical. Both fork look identical with the exception the old style cover on the 59 has a roll pin holding the fork to the shaft and what looks to be a RA2 number on the fork. and The new style timing cover has a bolt holding the fork to the shaft with what look like BA6 on the fork. Both numbers are raise, not stamped. What's the differences or am I making something out of nothing. Tying to figure if P.O. change all necessary parts. What should I be looking for? There must be a reason they want you to change all the parts. Hope someone can help. Thanks in advance