Tips for avoiding things that can bite you
By John Mummert
In disassembling Y-Block core engines, I have noted a number of common mistakes that are made during the assembly of Y-Blocks during rebuild. Take care to avoid these mistakes.
CAM BEARING INSTALLATION Note: The cam bores feature sharp edges. To aid in camshaft bearing installation, first deburr the edges with a sharp scraper. Once all block grinding, tapping, and deburring was finished, the block was thoroughly washed, rinsed, and blow-dried, with 5W30 engine oil applied to the cylinder walls to prevent surface-rusting. The camshaft [...]
CAMSHAFT NEEDLE BEARINGS Roller bearings for camshaft tunnels offer increased timing precision, reduced operating friction and the ability to handle higher loads. by Mike Mavrigian An alternative to traditional cam bearings is the needle roller bearing, which provides increased stability and durability for extended high-RPM racing applications. Because of the expense of block machining and [...]