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 | Apr 1, 2020 | BLOCK WORK
CENTER THE MANDREL This saves a lot of time when centering the mandrel on blocks with bed plates. Using an indicator on the mandrel with stone pressure against the mains, zero the indicator, release pressure with lever. Turn the mandrel 180 degrees, put pressure back...
by Donnie Hurt | Mar 1, 2020 | TOOLING
TOOL TIP When cutting main caps for line honing, this easy tool makes checking your work as you go a breeze. It’s especially useful if you need to cut different amounts from each cap. It’s great for searching through your old main cap selection if you’re looking to...
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...
