Hempy Cooper

[Smitty]

Any of you good folks out there who have used Hempy Cooper on babbitting Model A block. I am guessing that you must also use casting putty same as needed with Wilson fixtures?
Thanks, Steve

[redmodelt]

Model T or A tools would be used about the same for pouring. Mike Benders videos are showing Model T's caps and block being poured. I have not looked at them for a while but think he used the Hempy Cooper mold.

https://www.youtube.com/playlist?lis...GmKK1nA0Yctp6G

[Smitty]

Hi,
Thank you for the feedback on that. He is actually using Gene French molds on his T's
Cooper is an old device dating back to the 20's
Thanks, Steve

[redmodelt]

Thanks for the reminder on the Gene French molds. Watching the video I think Gene is making Mikes design. Mike made the ones he is using. I know of the Hempy Cooper mold and boring bar frame for the Model T use. The Hempy Cooper poring fixture that I know about only does one bearing at a time with the end caps being spring loaded The KR Wilson Model T pouring setup I have does all 3 bearings at the same setup and because of how it's construction, don't think it would be needed. The end caps have a machined area that adds the radius on the ends(he shows it in one of the videos), so when the babbitt is poured, saves time adding the radius later. Watching the video on pouring the caps and block, he did use it on the caps but not the block except the oil holes.

The person to maybe ask is Gene, he should be able to help you.

https://picclick.com/Model-A-Ford-co...934622229.html

[redmodelt]

Adding; You will need to check size on the mandrel. With the T one we have, the mandrel was sized for standard crank so not much extra material to go to an under size crank. Don't know if the A is the same.

[Smitty]

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I have been using the KR Wilson fixtures and boring bar with adjustable cutters. One of my Wilson pouring bars has been cut .040 to give me enough to size it where I need it. Had not thought about how much Babbitt material the Hempy Cooper setup would put into the bearing saddles...

[Ernie Vitucci]

Good afternoon...The Gene French molds allow for quite a bit of Babbitt...plenty for a Model A. The actual size of the final bearing is determined by the align boar which is set by the size of the crank you are going to use...usually the boar is set to allow 0.015 for oil circulation within the bearing. Ernie in Arizona

[redmodelt]

That would be .0015-.002. Yes Gene's pouring molds are made so you can pour thicker babbett for under size cranks. Grinding cranks was less common back in the day then it became later. You could go the Ford and buy a new standard size crank, so only really needed mold and cutter/ream for standard size.