Where is the dial indicator on a camshaft?
Where is the dial indicator on a camshaft?
Spin the crankshaft until the dial indicator is on the cam lobe’s base circle. That is the area on the back side of the lobe that provides zero lift. When you know the dial indicator is on the base circle, zero out your gauge.
How do you change the cam timing on a Porsche 911?
Start with the left side of the motor, and use vise-grips to clamp the end of the wheel sprocket lever arm to the edge of the chain housing. This is done to increase the tension on the chain and to get a more accurate reading. On the right side, it is a bit more difficult.
When is the best time to change the cam timing?
Obviously, the best time to set the cams is when the motor is being rebuilt. However, the cam timing can be changed and altered with the engine in the car. Quite a few things need to be removed or placed out of the way: engine mounts, A/C compressor, spark plugs, valve covers, some heater hoses, fuel injection components: but it is indeed possible.
Do you need to remove the Cam holding nut?
If you are performing this step with the engine in the car, you need to remove the large cam holding nut that constrains the camshafts.
What’s the best way to set a top Cam?
Use a straight edge like a parallel shaft to determine your top cam angle, and start with it in the vertical position. Firstly, you need to ensure that your cam or wheel is set in a true vertical position to begin with. This is done by laying a straight edge against your top cam.
What happens when a cam is installed straight up?
When a cam is installed “straight-up,” the imaginary centerlines of the two shafts line up exactly. Advancing or retarding the cam pushes the centerline of the camshaft to one side or the other of the crankshaft centerline. This changes the Timing of the valve opening and closing events, in relation to the position of the piston in the cylinder.
What’s the proper way to install a camshaft?
Assemble the timing chain and cam sprocket while aligning the timing marks properly, and torque the cam sprocket bolt or bolts to the proper specifications. Next, lubricate and install the lifters, always using a new set of lifters, for proper tappet-to-cam-lobe contact (Fig. 2).
What’s the best way to adjust camber angle?
The last adjustment method, adjustable shock mounts or caster/camber plates, is usually limited to the aftermarket. By cutting out the OEM shock mount, and installing the plate, users have more control over camber angles, great for tuners and racers to get even more camber for better cornering.
