There are many resources available for information on the correct procedures to follow when performing a repair operation. The DEG can not recommend or offer repair procedure guidance, however we would always recommend contacting the Original Equipment Manufacturer (OEM) if there is a question on how to correctly perform a repair operation. Many of the OEM websites can be found on the DEG Links tab to help find the information you are looking for.  In some cases, we may be able to direct you to a source for OEM repair procedure information.