Briggs & Stratton Lo206 Cam Shaft Profile Calibration Gauge Tool Holder Block

Briggs / L0206 Cam Block, Briggs Only Cam Shaft Inspection Block, Briggs & Stratton Lo206 Cam Shaft Profile Calibration Guage Tool Holder Block.

This is made by Krybaby performance. It is precision machined out of tool aluminum and each hole reemed to a precision tolerance. The final product is anodized. this tool is all metal so there is no flex and your numbers are exact.

The first step in performance is knowing what you have. One of the biggest gains is the camshaft profile. From Briggs the cam is manufactured and heat treated after it is produced so it moves and twists all over the place - there is NO final grind so what you have is performance all over the spec. Some super good and some very poor - What do you have? The only way to know is to profile the cam from the lifters - both intake and exhaust. You need a way to hold the dial indicator gauge in the proper spot on top of the lifters. These lifters rid on the cam where you collect the profile from.. This is the tool to find out what you have.

First you must find top dead center by using the solid pin in at the tip of the tool. You must establish a timing mark with a bent piece of wire. Your engine has no timing mark. By rotating the degree wheel back and forth you will split the difference until you get it at zero - TDC. You will have to bend the wire around to get perfect zero. Once zero is established you will start with your gauge on the intake lifter and rotate the degree wheel until you find the base circle of the cam. Set the guage to zero and rotate checking this several times until the zero does not move. Now you are ready to profile  - you will rotate the degree wheel clockwise to .006 on the guage and your first number will be 59 to 51 degrees BTDC then on to .020 and so on. 51 is the good side. You will perform this at each of the numbers and establish a full profile. 

We all know the Briggs lo206 engines are the same until the engine builders get done with the little performance tricks and this is the biggest of them all, cam calibration. Briggs gives a cam spec but the window is huge. 8 degrees on the first number and 4 degrees on every other number but you can still have one number out so that's 6 degrees. It only take 2 degrees to make a rocket and this kit will allow you to see what you have. 

This is just the guage block only, see my other listings for the dial indicator, or degree wheels specifically for the Briggs engine.. Calibrate away and get some speed!