TOP 10 CAM FAILURE CULPRITS 1) COIL BIND-when a spring compresses solid before or during full camshaft lift. 2) RETAINER TO SEAL BIND-the distance from the top of the valve seal to the bottom of the retainer must be greater than the valve’s lift. 3) IMPROPER VALVE...
PICKING UP STEM HEIGHT When working on GM cylinder heads like the LS series, that have a short tip length, you may need to have the valve shortened for correct stem height. The valve tip may set below the retainer. I use my Sunnen cap grinder to remove .020 from top...
ALIGN HONE ADJUSTMENT At times I have had a main journal that just honed faster than the rest. I cut some .001 shim stock and place it between the stone and journal and give it a few short strokes. The shim stock will stop the honing of that one journal and let the...
STAINLESS O’RING TIPS Occasionally you find yourself needing to remove stainless o-rings while servicing engine blocks or heads. Instead of trying to pick and gouge the wire out, simply strike an arc on them with your tig torch and immediately touch the tungsten to...
ROTTLER HM3 HONE REPAIR Here is how you can repair the Hone head since Rottler does not service the head any longer. You can use a Regis part number RSI218. You will need to drill out the top of pinion to remove the expander nut. Then cut the top of the shaft and...
HELICOIL REMOVAL Sometimes when machining and repairing different things, it is necessary to remove helicoil inserts that have been previously installed. Without any knowledge of how to do this can make a simple repair seem like a complete disaster. From my...