by Donnie Hurt | Apr 1, 2020 | ASSEMBLY
EXPANDING PLUGS When I find the need for a little more press on a cup expansion plug I use a modified spring retainer with a taper to lightly expand them in the press. Randy Torvinen Torvinen’s Machine Manahga, MN April, 2020
by Donnie Hurt | Mar 1, 2020 | CRANKSHAFTS & CONNECTING RODS
WINGNUT DRIVER I balance several engines a week. While correctly loading a bob-weight is very important to the end result, spinning down multiple wing nuts is simply routine and time consuming. I made this notched tool from aluminum tube in two sizes. You can also...
by Donnie Hurt | Mar 1, 2020 | CYLINDER HEADS
VACUUM TESTING FIXTURES When vacuum testing valves on some heads there may be obstacles in the way. In many cases there will be some exhaust studs in the way like this 3.4L GM. Rather than opening up a can of worms trying to remove the exhaust studs, I look through my...
by Donnie Hurt | Mar 1, 2020 | CAMSHAFTS & VALVE TRAIN
INNER TUBULAR For the past 20 years, I have been buying bicycle inner tubes at the local hardware store to replace the neoprene sleeve on our universal cam bearing tool. The inner tube costs range from $5.99-9.99 and will give you more bang for the buck. Cut the inner...
by Donnie Hurt | Mar 1, 2020 | TOOLING
ORGANIZATION FOR EFFICIENCY I’ve found “1-Buck” store mini muffin tins are great inexpensive parts organizers. I use them for bucket style solid lifters that are found in many late model DOHC heads. They enable me to easily put them back in the original positions. In...
