by Donnie Hurt | Mar 1, 2014 | CYLINDER HEADS
NON-STICK EQUALS NICER FINISH I find that when machining some valve seats my cutter will get a build up and give a poor finish. I use a small knife to scrape the cutter clean, than I smear PAM (non-stick spray) on the seat and the cutter for the last .002” cut. It...
by Donnie Hurt | Feb 1, 2014 | PISTONS & RINGS
CHANGES IN PISTON DESIGN Last month we discussed changes in piston ring design. Changes in rings also mean changes in the pistons they ride on. A century ago you could find cast iron pistons in your motor. Aluminum soon proved to be a lighter weight and more durable...
by Donnie Hurt | Feb 1, 2014 | DISASSEMBLY & CLEANING
SILICON AND GLASS BEADS DON’T MIX Many times you will have an aluminum head with some left over silicon gasket on the surface. Attempting to bead blast the silicon off will only result in a damaged cylinder head. The aluminum will continue to be worn away by the...
by Donnie Hurt | Feb 1, 2014 | CYLINDER HEADS
MAGNETIC CATCH MATS Small valve locks, especially those for obscure import applications, can be difficult to get into place and inevitably, if you’re not careful, can pop out and easily get lost on or under your work station. Magnetic sheeting is available in one foot...
by Donnie Hurt | Feb 1, 2014 | BLOCK WORK
TORQUE PLATE HONING GM LS-SERIES ENGINES We have found that due to the length of the head bolts and the fact that they finish approximately 1-1/2 inches from the mains, considerable bore distortion will occur if torque plates are not used when finish honing the GM LS...
