05-15-2022, 09:30 PM | #1 |
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Location: Florida panhandle
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Valve guides
Haven’t had an A motor very much apart yet, some must know, were the V8 split guides the same as model A? I have a ton of mushroom stem valves and guides, and 2 motors that may need some. Thanks
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05-15-2022, 09:45 PM | #2 |
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Re: Valve guides
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05-15-2022, 10:51 PM | #3 |
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Re: Valve guides
OK so I will fish a couple out of the loose motor I have & take with tomorrow. My dad is working on one in south Florida, not many resources there.
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05-16-2022, 07:42 AM | #4 |
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Re: Valve guides
Here are pictures of the Model "A" & Model "B" valve parts (left) plus the Flathead V8 parts (right). They are not the same.
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05-16-2022, 08:29 AM | #5 |
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Re: Valve guides
Most people convert over to modern valves and adjustable lifters, available at the suppliers. The two wrench adjustable lifters are easier to adjust.
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05-16-2022, 11:07 AM | #6 |
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Re: Valve guides
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05-16-2022, 02:19 PM | #7 |
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Re: Valve guides
There are some John Deere valves that can be machined to fit any model A application. They have 5/16 chrome stems.
The stems will need to be cut off, regrooved and the heads machined to the required diameter. Last edited by Pete; 05-17-2022 at 12:01 PM. |
05-16-2022, 03:20 PM | #8 |
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Re: Valve guides
Bingo! I always wondered about a box of these that I inherited - identical in dimension to Model A/B valves but with a 1/8 inch wider valve head. Per Jim Brierley they are intakes from a 1941 Ford 6-cylinder.
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05-17-2022, 11:06 AM | #9 |
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Re: Valve guides
Pete, be quiet about 30* seats, that's a trade secret!
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05-17-2022, 11:53 AM | #10 |
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Re: Valve guides
Pontiac new that in made all of their intake valves 30 °
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05-17-2022, 12:01 PM | #11 |
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Re: Valve guides
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