Engines: Engine Rebuilding: Engine machining
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Topic IntroductionHelp

Clean & degrease engine

Summary
The various specialized equipment and tools used in this process are not readily available in most general automotive workshops, and for some or all of these you may need to use a professional machine shop. The objective of this procedure is to show you how to clean and degrease the engine.

Part 1. Preparation and safety

Objective

Clean and degrease the engine

Personal safety

Whenever you perform a task in the workshop you must use personal protective clothing and equipment that is appropriate for the task and which conforms to your local safety regulations and policies. Among other items, this may include:

If you are not certain what is appropriate or required, ask your supervisor.

Safety check

Points to note


Part 2: Step-by-step instruction

  1. Prepare the components for machining
    Almost every rebuild requires machining of some sort. The various specialized equipment and tools used in this process are not readily available in most general automotive workshops, and for some or all of these you may need to use a professional machine shop.
  2. Clean the components
    Before the parts are examined beyond a quick visual inspection, they need to be cleaned. Depending on their condition, everything from the block and disassembled heads to the crankshaft and all the covers may need to be put into the jet wash for degreasing.
    After that, the heads and block will need to be blasted or baked until they are perfectly clean and any of the external covers detailed to be ready for paint later on.
    It is much easier to inspect and properly assess the condition of all the parts when everything is clean. After all the grease has been removed, every part should be visually inspected for cracks or damage.