Are all valve shims the same?
The shims you’ll find installed in most bikes are always close to the same sizes, so odds are that you’ll need more than one in a particular size. They also include a lot of 3mm+ sizes you’ll likely never need.
Do valve shims wear out?
Normally within the first 3-5 hours of breaking in a new engine the valve shim sizes may change slightly. Once this happens the valve face will wear much more quickly and start to wear out the seat as well.
What do valve shims do?
A valve shim, or valve spring shim or hat as it more commonly called, is a device used to set the height of installed valve springs in an internal combustion engine. This is also the name of a steel disk used to adjust the lash or tolerance of a valve on an overhead cam engine.
How do shims work?
A shim is a thin wedge made of wood or plastic, traditionally used for incrementally positioning and adjusting building elements before securing them in place. After a door or window unit is placed into the opening, shims spaced at intervals around the frame are gently tapped into place with a hammer.
Where can I get desmodromic shims for Ducatis?
Welcome to Desmo Times. We are the source for Ducati maintenance and modifications parts, including technical manuals for all belt drive Ducatis. We are the world standard in aftermarket Desmodromic shims and tools. Whatever your maintenance parts needs are, we have you covered.
Do You need closing Shim adjustment tool for Ducati?
Compared to 300~ for the Ducati tool, that’s a bargain and is well worth it if you plan on doing your own work. You will also need a closing shim adjustment tool – a top hat shaped plug that fits into the closer shims to measure them with a micrometer.
Where to check opening clearance on Ducati Desmo?
Checking the opening clearance is simple – at TDC, check the gap between the top shim and the rocker arm. There are two ways to check closing clearance, and the best method is to use both of them. First, there is “loaded/unloaded” clearance.
Which is the best source for Ducati maintenance parts?
We are the source for Ducati maintenance and modifications parts, including technical manuals for all belt drive Ducatis. We are the world standard in aftermarket Desmodromic shims and tools. Whatever your maintenance parts needs are, we have you covered.