SUNNEN CRG-750 FIXTURE TUNE UP I just used a set of LS main caps to shim the fixed surface plate (opposite the clamp) on our cap grinder. LS caps are normally cut very square to the sides, but first I verified these with a machinist's square. I use dye chem on the...

CAM TUNNEL CHECK This is a quick and accurate way to check cam tunnel to crank centerline accuracy using the common Block Tru fixture. First, mount up the Block Tru fixture, be sure the front cone is flush with the plate and snug both front and rear. Next, remove the...

KEEPING THE FLUIDS OUT If you’re honing a block without a torque plate for any reason, use clear packing tape and cover all the water holes in the deck. This will reduce the drain time and you’ll see much less "walk off" of your honing oil as well. Saves money and...

GROOVY CAM BEARINGS When boring cam tunnels for repair or index correction that have oil grooves behind the bearing, you will lose a little area in that feed. Instead of the hassle of grooving them deeper, I just make up what’s removed by grooving the backside of the...

SUBARU CASE CLAMP The Subaru opposed 4-cylinder has a split case or block. I came up with this solution to hold down Subaru blocks so we can surface them. It works real well and holds the block firmly in place. Its a metal bar cut to fit inside of the cylinder. I...

CAM BEARING INSTALLATION Nothing worse than having to fit a camshaft after installing new cam bearings, because they are too tight. I dial-bore gauge check all cam bores of the “known offenders”. I also use a Sunnen Jr. Hone to hone cam bores to the correct size...