Mystery bolts next to cam

Okay, I'm willing to take a huge dose of humble, by asking a 'stupid' question of the Hudson engine experts.



You see, I'm rebuilding a 262 motor, and even though I'm carefully documenting my work as I go, and taking all the time necessary to do it right, I failed to snap a picture to explain how to assemble some parts under the timing chain. Hence the 'stupid' part (me!) Of course, I can't find any detailed pictures in any of my manuals, either. (I did enclose a JPG of this area from Alex Burr's Service Merchandiser that shows the area in question)



To the immediate left of the cam, when facing the front of the motor, there are two 1/4-20 grade 8 bolts that hold a small crescent shaped lock tab to the block. What the heck are these, and why are they necessary?



I've got the two-eared cam retainer with their separate lock tabs in place. I've got the timing chain oiling trough with it's bolt and lock tab, and I can't for the life of me make sense out of these last two.



Humbly,

Doug