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Old 05-22-2024, 04:03 PM   #6
nkaminar
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Join Date: Jan 2012
Location: Western North Carolina
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Default Re: 1931 model a engine

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Normal looking. You can clean it up if you want. Use a scraper and not a wire brush as the bristles can break off and cause damage. Clean the block and head surfaces where the gasket sits and as a final clean wipe with acetone.

The pistons should not have perceptible movement side to side or back and forth. Check at the top of the stroke. The valves should have a uniform color where they meet the seats. Do not scrape these areas. There should be no carbon or other deposits at the seating area of the valves. There is lots more to look at. Get some help from a Model A person in your club.

Post your location or let us know what it is in a response.
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