How do you adjust the valves on a Porsche 911?

Air-Cooled Porsche 911 Valve Adjustment Procedure:

1. Step 1: Drain Engine Oil.
2. Step 2: Raise Car on Jack Stands.
3. Step 3: Remove Valve Covers.
4. Step 4: Turn Engine to Top Dead Center (TDC) on Cylinder #1.
5. Step 5: Adjust Cylinder #1 Valves.
6. Step 6: Turn Engine 120 Degrees & Adjust Cylinder # 6 Valves.

Should valves be adjusted hot or cold?

Major camshaft manufacturers recommend setting valves cold, to avoid erroneous adjustments on lifters that may be “pumped up” If you are setting valves on a fresh engine that has not been run, everything should be well lubricated before you begin.

How cold does an engine have to be for valve adjustment?

Honda specifies that the cylinder head should be less than 100 F (38 C) before attempting to adjust the valves. Like others have said, stone cold is best. Preferably, tear it down at night and adjust the first thing in the morning.

Can tight valves cause high idle?

Unless they’re adjusted so wrong and are to tight, the valve adjustment won’t affect the idling. Either you have a vacuum leak from an unhooked hose or your valves were not adjusted correctly. …

Can valve lash cause rough idle?

Rough Idle These valves have a small amount of clearance between the valve itself and the mechanism that activates the valve. This clearance is called “lash.” If the valve lash is set incorrectly (too much clearance, or not enough), the engine may respond by running rough at idle, particularly while warming up.

Can I adjust the valves on my own Porsche?

Adjusting your own valves gives you more of a sense of ownership of the car, and also helps to cut down on those expensive maintenance bills that are typical of Porsche ownership. After you have done this a few times you will recognize that there are a few tips and tricks to adjusting the valves.

How do I adjust the clearance on my valves?

The clearance that needs to be adjusted is located between the valve tip and the rocker arm adjusting screw. This screw has a little swivel foot that rotates to meet the valve stem flat. This prevents wear on the tip of the valve. If the clearances of valves are too tight (not enough space), then you can have valves that don’t completely close.

How does a 911 motor cycle work?

The entire cycle requires precise coordination of all the components involved. In the 911 motor, the crankshaft, which controls the motions of the pistons, is tightly integrated with the valve motion through the timing chain.

What do I need to adjust the valves on my car?

Firstly, you will need a valve adjustment tool. This is nothing more than a small feeler gauge placed on the end of a handle. It’s a simple tool, but one that is absolutely necessary for getting into the small spots in the rear of the engine. This tool is shown in Figure 3.