by Donnie Hurt | Dec 1, 2020 | OTHER SHOP WORK
ANOTHER ARBOR To cut down the flange on 12-point nuts for clearance, we built this simple arbor which allows us to cut 12 at a time. Simply a piece of all-thread cut on one end to clamp in the jaws and drilled for a pilot hole on the other for the lathe tail stock....
by Donnie Hurt | Dec 1, 2020 | CAMSHAFTS & VALVE TRAIN
GIVE IT SOME BODY Some cam lubes are thin and drip off the cam lobes. I take thin lube and add gel capabilities to hold on to the cam lobe until start up. To do this, I add a small amount of petroleum jelly to thin cam lubes. It gives them more body so they’ll stay in...
by Donnie Hurt | Nov 1, 2020 | BLOCK WORK
SLEEVE LOCKS When boring and honing engines with sleeves that have only a light press fit, we have found that the torque from the honing operation may cause the sleeve to slip in the engine case. We use 4 old 4-sided carbide inserts and some clamp bolts and nuts from...
by Donnie Hurt | Nov 1, 2020 | OTHER SHOP WORK
REPEATABILITY KEY TO PROFITABILITY When machining multiple parts, put your first part up against a stop like this small parallel. Machine your first one then set and zero the indicator. Now just chuck up the next part the same way. Now you do not have to measure each...
by Donnie Hurt | Nov 1, 2020 | OTHER SHOP WORK
SHOP MATH Ever wonder how to find the center of 2 pulley groves? Use 2 long straight bolts, 3/8” in this case. Lay one in each pulley groove and measure the distance across both. Now subtract the width of one bolt to find the centers. (1.078”-.375” = .703” [.700”] in...
