Measuring Camshaft Cam Wear (Taurus 1 and 2)

1. To determine the degree of camshaft cam wear, the cam height should be measured before removing the camshaft. Since the camshaft cannot be removed without removing the engine, its removal and installation are discussed in Part C.

2. Remove the valve cover(s) (section 3).

3. Set piston No.1 to TDC in the compression stroke (section 5).

4. Starting with the valves of cylinder #1, install a dial indicator in the engine and place the plunger against the top of the first valve lever. The plunger should be directly above and in line with the pushrod.



5. Set the indicator to zero and then very slowly turn the crankshaft in the direction of its normal rotation until the indicator needle stops and begins to move in the opposite direction. The stopping point indicates the maximum amount of cam lobe lift.

6. Remember the resulting value, then return the piston to TDC on the compression stroke.

7. Move the indicator to the next valve lever of the first cylinder and repeat the test. Remember the values for each valve

8. Repeat the check for the remaining valves. Since each piston must be set to TDC on the compression stroke, perform the work in the sequence corresponding to the firing order.

9. After checking, compare the results with the specification. If the cam lift is less than required, it is worn out and a new camshaft must be installed (see chapter 2C).