by Donnie Hurt | Jun 1, 2016 | CRANKSHAFTS & CONNECTING RODS
TAPERED ROD PIN BUSHINGS Pin Bushings require about the same amount of interference fit as a piston pin. The same rod heater you use to fit pins can be useful with certain pin bushings. Tapered rods can be very difficult to remove and install bushings in and usually...
by Donnie Hurt | May 1, 2016 | OPERATIONS
PRICE TALK The phone rings, “How much is a valve job on a pair of early 350 heads?” Sound familiar? These are generally the first words you hear from a customer and seem to reflect the fact that your prospective customer’s first concern is COST. Should you quote a...
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 | 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 | 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...
