by Donnie Hurt | May 1, 2021 | CYLINDER HEADS
SEAT REPAIRS THAT DON’T LEAK When installing valve seats, you sometimes run across porosity that leads into water at the base of the counterbore. I like to pressure test after the counterbores are If you have a seat that you’re trying to seal up, you can make a...
by Donnie Hurt | May 1, 2021 | ASSEMBLY
PRIME WITHOUT THE INTAKE MANIFOLD ON I prime all of my engines with the intake manifold off, valley open. You can see oil escaping around lifters and cam bearings. You can see if you have the wrong base circle camshaft on SB Ford hydraulic roller cams and if the...
by Donnie Hurt | May 1, 2021 | OTHER SHOP WORK
BROACHING THE SUBJECT When broaching a keyway in a relatively thin part, such as this modified gear cut from a Chevy camshaft or a narrow pulley, I use an aluminum spacer to hold the broach guide bushing up and out of the work piece. This will help hold the broach...
by Donnie Hurt | Apr 1, 2021 | DISASSEMBLY & CLEANING
HEX HEAD VALVE NUT Disassembling an old stuck engine can be challenging. When valves are stuck in the valve guides, try welding a nut to the face of the valve. Now you can rotate it to help free it from the guide. Dave Matton D and D Auto Machine Bloomington, MN...
by Donnie Hurt | Apr 1, 2021 | BLOCK WORK
SIGHTING IN YOUR CAM BEARINGS We all know that some cam bearings can be a bear to install with their holes lining up correctly. To help ease the installation, we milled a .125” slot down the center of our cam bearings tool. By aligning the hole in the bearing with the...
