The adventure continues . . .
First, the good news – the block is back, it mics up, and it sure looks a lot nicer than it did two months ago.
I still need to put the valves back in to confirm the arc of the rockers, but indications are on the valves that clear the pedestals, that with stock pushrods, it should work well.
Yay!
And now for the continuing frustration with the rocker assembly –
Those rockers are very purdy for that old cast iron clunker . . .
Stan
Stan, purdy is in the eye of the beholder.
One of the really screwed up design features of the BMC A series engine is that 4 of the head studs are used to help locate the rocker pedestals. This creates a clearance problem for the washer –
And even the standard nut, sans washer –
The pedestals are aluminum, so methinks washers are required.
I’ve got shims for the shaft on order - .010 – to keep the sides of the rocker from rubbing against the pedestal, and that will help a tad. Peter Jack’s earlier thought on the pedestal nut – using a 5/16 12 point, is probably the way I’ll go for the pedestal stud. I’m hoping ARP might have a 3/8 fine thread 12 point with a base no larger than 5/8 for the head-pedestal nut, and hopefully corresponding washers.
Did I mention that the stud holes are off center a tad?
Off to visit Mrs. Midget’s Mom.