by Donnie Hurt | May 1, 2016 | TOOLING
POLISHING ARBOR I made an arbor to polish piston pins and pilot bushings that can be chucked up in my lathe, or even in a drill chuck. First I cut off the head of a long carriage bolt. This one was 3/8” coarse and will fit in a small drill chuck. Then added a nut,...
by Donnie Hurt | May 1, 2016 | CYLINDER HEADS
BMW UNDER PRESSURE One of the most difficult heads to pressure test is the BMW DOHC 6 cylinder. It is nearly impossible to plug the water outlet on the side of the head, until now. A “T handle drain plug” from a boat is the perfect size, and easy to install and...
by Donnie Hurt | May 1, 2016 | ASSEMBLY
MAKING THE SEAL ON WET HEADBOLTS & STUDS 40 to 50% of our business is hi-performance boat engines, and the head bolt/stud sealing is critical on these engines. Jet boats use “waste” water from the jet pump to cool the engine and the pressure applied to the water...
by Donnie Hurt | Apr 1, 2016 | PISTONS & RINGS
FEELING RAIL GAP It can be very difficult to check end gap on oil ring rails or gapless ring rails. I opened up the gap on a top ring of the appropriate bore size and squared it in the cylinder with a tool made from a scrap sleeve. Just set the rails on the top ring...
by Donnie Hurt | Apr 1, 2016 | OTHER SHOP WORK
BUCKET LIST Here’s an easy way to carry, store, and use just the right amount of air hose. 1. drill a hole in the bottom of a 5-gallon bucket, large enough for the quick-coupler to fit through. 2. coil the hose as you store it in the bucket 3. pull as much hose as you...
