www.Yenko.net
www.Yenko.net

News reviews and feature articles on all types of Chevrolet Cars and Trucks new and old.Camaros, Camaros
and Information on more Camaros

69 Z28 302 Crossram Pg. 3

As is standard practice during the initial mock-up phase of a build, the main journal sizes were measured and recorded. Next, the main bearing inserts were installed in the block and the main caps were torqued to spec; the bearing diameters were recorded and bearing clearances were calculated. The same process was repeated for the connecting rod journals and connecting rods as well.

Measuring the journals

Next up on the checklist was to measure the crankshaft thrust clearance. The crankshaft was lowered into the main bearings, the rear main cap was aligned, and the caps were installed and torqued to spec. The thrust measured out at a perfect .006". As a side-note; the thrust clearances are checked at several points of crankshaft rotation just to make sure there is no binding or tight spots.

Checking the thrust clearance

Next on the "to do" list was to temporarily install the #1 piston & rod and verify true TDC. Once this was verified, the camshaft was degreed in. (More on the camshaft on the next page)

Keeping the crankshaft and the camshaft harmoniously connected was left to a Cloyes double roller timing set.

Verifying top dead center

backnext