8V dumb-bell rocker arm rods

[belfastguzzi]

Going back to the time of the cam & tappet replacement issue, a note followed about the importance of replacing these little pushrods the right way up i.e. grooved end towards the rocker. There was no explanation as to why: and there wasn't any observation of any difference in the two ends.

 

I haven't seen any more comment on this and don't know if it's been on other forums.

As I have the parts out, here are pics to show that both ends have flats. The rocker end has a smaller flat. The bottom end appears to have a concave dimple in the centre.

I can't see these flats just being wear on my particular rods. Looks to me like they are machined like this. To hold a small pool of oil?

 

 

 

 

 

 

 

 

 

[gstallons]

The way you suppose, propose or guess is correct. The end with the smaller flat is use on the rocker arm because of the pivoting movement going on v the other end remaining on the cam folower (lifter) and doing not mucch besides rotating.

When you assemble this and everything on an engine use an assembly lube to prevent a dry-start on engine parts.

p.s. You have a good eye for noticing.