Shop Solutions April 2022 – Engine Builder Magazine

When slicing O-ring and receiver grooves for top gasoline hoops, it’s important to have lots of cutting oil to get a awesome clean reduce in the heads and block. As a substitute of spraying penetrating oil all around the bench, we do them in the honing tank and flood the do the job with oil whilst cutting. It looks to reduce substantially simpler and cleaner without the mess. We use filter screens in the tank as well as a significant Sunnen filter cabinet to enable continue to keep the oil clean up. 

Jake Sampson, Sampson Racing Engines, Inver Grove Heights, MN

HOW FITTING

On some crankshafts, the pilot bushing bore is undersize or irregular. Driving in a bushing with as well much interference would direct to the I.D. of the pilot bushing currently being way too compact for the transmission input shaft. Merely mic the bore and modify the bearing you are replacing it with by turning the OD. If there are steps in the crank bore, make that adjustment as well. .003” push in shape is very good.I favor to use a spud in the mill collet, turning versus a fixed bit. I do this for valve guides and many functions just utilizing a collet and the element.
 
Ron Flood, Cedar Machine, North Branch, MN

Eradicating PIPS

Normally when parting off a work piece in the lathe, the tool may perhaps leave a “pip” or thin ring connected to the get the job done piece….even when making use of a proper-hand slice-out insert or blade idea. Here’s an uncomplicated, brief way to clear away the unwelcome “pip” or slender materials: open a mill vise,with the regular metal jaws, just vast ample to allow the work piece to slip among the jaws. Use a mallet to gently tap the get the job done piece into the house among the jaws, shearing off the pip/ring, for a sleek end. There are no unsightly scratches from filing, snips, or sanding belt, and so on. Instance: Removing thin ring of product remaining at the rear of after parting off custom made machined mount for aero motor software.
 
Tom Nichols, Automotive Equipment & Offer, Inc, Cleburne, TX 

In advance of COVID AND Beyond

Way right before the Covid virus I was worried with receiving an infection by customary handshaking. I was reducing or scraping my hands on a normal basis in the shop. To hold any germs from entering my entire body I applied the “newskin” liquid bandage to seal them out. Even although handshaking is not what it employed to be I nonetheless damage my arms now and then and I use the New Pores and skin liquid bandage to seal out germs.
 
Lyle Haley, The Store Doc, Andover, MN

BALANCING TIMESAVER
 
In the previous, I well balanced unique parts like everyone else match all to the lightest, piston to piston, rod to rod, and so on. But a number of many years ago, I started out following this technique: Assign all sections an figuring out letter, then weigh and record all weights. Then match up heaviest piston with lightest rod modest stop, 2nd heaviest piston with 2nd lightest rod tiny end,etcetera. Then as soon as all pistons are matched with all rods, the pounds that wants to be eliminated will be markedly much less. Then match heaviest rod big finish with lightest rod large stop, and so forth, until finally all rods are paired up. I made an excel spreadsheet that does the arithmetic, so I really don’t get bewildered. Doing this has minimize my part balancing time in half, probably a lot more.
 
Mark Workman, Workmonster Motorsports, Ballwin, MO

MOCKUP

When I mockup to examine for piston to valve clearance or pushrod length, I use cardboard strips to simulate the compressed gasket thickness. I lightly comfortable down a pair of bolts and conserve the gaskets for the remaining assembly. Yet another helpful mockup suggestion is to wrap masking tape close to the ring land area of your piston. Just more than enough to get the “rock” out and tighten its suit in the bore. No have on and tear on the rings and considerably less likelihood of breaking or chipping 1. I never place in the pin locks in the course of the examining in circumstance changes to the valve pockets are needed.
 
Randy Torvinen, Torvinen’s Equipment, Menahga, MN