by Donnie Hurt | Mar 1, 2020 | CYLINDER HEADS
MANDREL FOR MACHINING OLD RETAINERS I had a different combination of valve stem and spring diameters to work with and I could not find spring retainers to fit. I had previously made these mandrels to hold and modify 7° & 10° retainers, so this job was easy to...
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...
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 | 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 | 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...
