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When you take the head off a Model A 4-cylinder engine, sometimes for the first time in decades, there will often be contamination left behind in the stud holes, such as rust, oil, or unfortunately even coolant. In this video, I'll show you one way to clean the stud holes on the Model A engine block.
To clean your stud holes, you'll need:
- 3/8" oak dowel
- Brake cleaner
- Shop towels
- Compressed air or canned air
- 7/16"-14 rethreading tap, also called a thread restorer or thread chaser
- 1/2" nylon bore brush with a chuck that fits your impact wrench
- Shop vacuum
I'll be posting additional videos on how to test your block threads and how to prepare to install a new cylinder head.