What should my valve lash be?
Simply use a feeler gauge and slide the tab of the correct thickness between the tip of the valve stem and the end of the rocker. The camshaft manufacturer or your engine builder will give you the preferred lash range-it’s usually between 0.010- and 0.024-inch for a race engine.
How does valve lash affect performance?
Since the valve cannot move until all the running clearance (valve lash) has been taken up, the amount of valve lash you use affects the engine’s performance. If you decrease the amount of (hot) valve lash, for example, the valve will open slightly sooner, lift higher and close later.
What happens if you have too much valve lash?
Too much or too little valve clearance can result in poor performance or a rough idle because the engine can’t “breathe” normally and operate at peak efficiency. Too much clearance means the valves will likely clatter and, over the long term, cause damage to the valves, camshaft lobes or rocker arms.
How often should I change the valve on my Deutz 1011?
We recommend changing it every 700 hours on a 1011/2011 Deutz. If it isn’t changed on a timely basis it will break with serious results. The valves will float free and hit the pistons, bending the push rods and even damaging the cylinder head.
How do I install the injection pump on a Deutz 1011?
This Tech Tip focuses on installing the unit injection pumps on Deutz 1011 and 2011 engines. The only tool you will need to purchase, is an adjusting pin for the injection pump control rod. This tool is very inexpensive and is shown above. You should also invest in a Deutz workshop manual, which we can email to you.
What is the difference between the Deutz 1011 and Deutz 912?
The newer 1011 and 2011 series engine family while well designed is not as heavy duty nor as field-serviceable as the older Deutz 912 series. The 1011 and 2011 engines are also far more maintenance intensive. For example, rather than using timing gears (or at the very least a double row timing chain) the Deutz 1011’s and 2011’s use a timing belt.
What is a torque to yield bolt on a Deutz 1011?
The rocker tower bolts that hold the rocker shaft assembly on a Deutz 1011 or 2011 are a torque to yield bolt. These small bolts, two per tower, get stretched when a timing belt breaks. If they are stretched and are re-used you will never be able to obtain the correct torque again.