How To Clean Cast Iron Engine Block
Let it sit in for a few minutes to rinse off the deposits and the cleaner.
How to clean cast iron engine block. Immerse the engine block into it and add more warm water to submerge it fully. After scrubbing the engine block fill a second tub with warm water. Derusting solutions and techniques vary. If you have a pressurized spray washer you may also use this to rinse off the engine block.
Source : pinterest.com