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 | 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 | DISASSEMBLY & CLEANING
CLEANING KEEPERS When cleaning valve train parts it is so easy to lose the tiny keepers. We always keep any extra keepers we have in case of losing one, but there’s always that one head that you don’t have extra keepers for. We purchased a very inexpensive item on...
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 | 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...
