What is the difference between a Model T and Model A Crankshaft?
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Topic author - Posts: 46
- Joined: Mon Jul 27, 2020 7:12 am
- First Name: Bill
- Last Name: Marsh
- * REQUIRED* Type and Year of Model Ts owned: 1913 Speedster, 1914 Touring, 1923 Depot Hack, 1925 Calliope, 1926 Pickup, 1927 Speedster
- Location: Stone Mountain, GA, USA
What is the difference between a Model T and Model A Crankshaft?
I have heard about people installing a Model A crankshaft in a Model T. What are the advantages? Also, how can I tell if my 1927 Model T speedster has a Model A crank from past owners?
Bill
You can dissect a Model T; but you can’t kill it!
You can dissect a Model T; but you can’t kill it!
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Re: What is the difference between a Model T and Model A Crankshaft?
More torque from the stroke for sure. Larger journals, but some serious mods. Drop the inspection plate and you will know.
Hank
Hank
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Re: What is the difference between a Model T and Model A Crankshaft?
If the front of the crankshaft at the pulley is threaded and the pan has four bumps on each side where it is bolted to the block, there’s a good chance you have a Model A crank
Remove the inspection cover and have a look
A Model crank has larger mains and rod pins along with a 1/4” longer stroke.
Take a lot more work to put one in but very doable
What Henry said. He types faster. Lol
Remove the inspection cover and have a look
A Model crank has larger mains and rod pins along with a 1/4” longer stroke.
Take a lot more work to put one in but very doable
What Henry said. He types faster. Lol
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Re: What is the difference between a Model T and Model A Crankshaft?
Here is a pic of the pan bumps... and there will usually be a 3/8”-1/2” thick spacer between the pan and inspection cover as well
If you have the inspection pan off, and are not familiar with either crank... the A crank has circular webs near the main journals, and the T crank will look like it was bent up out out of a coat hanger
If you have the inspection pan off, and are not familiar with either crank... the A crank has circular webs near the main journals, and the T crank will look like it was bent up out out of a coat hanger
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Re: What is the difference between a Model T and Model A Crankshaft?
I can usually tell if it’s an A crank by the “bumps” on the side of the pan.
Tony Bowker
La Mesa, California
1914 Touring, 1915 Speedster, 1924 Coupe.
La Mesa, California
1914 Touring, 1915 Speedster, 1924 Coupe.
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Topic author - Posts: 46
- Joined: Mon Jul 27, 2020 7:12 am
- First Name: Bill
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Re: What is the difference between a Model T and Model A Crankshaft?
Good info! Will check into my engine.
Bill
You can dissect a Model T; but you can’t kill it!
You can dissect a Model T; but you can’t kill it!
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Re: What is the difference between a Model T and Model A Crankshaft?
Somebody correct me if I'm wrong, but I think one of the most significant differences is that the Model A cranks are virtually never found cracked.
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Re: What is the difference between a Model T and Model A Crankshaft?
Model T...
Model A...
Model A...
<o><o><o><o> Tim Rogers - South of the Adirondacks - Forum member since 2013 <o><o><o><o>
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Topic author - Posts: 46
- Joined: Mon Jul 27, 2020 7:12 am
- First Name: Bill
- Last Name: Marsh
- * REQUIRED* Type and Year of Model Ts owned: 1913 Speedster, 1914 Touring, 1923 Depot Hack, 1925 Calliope, 1926 Pickup, 1927 Speedster
- Location: Stone Mountain, GA, USA
Re: What is the difference between a Model T and Model A Crankshaft?
Thank you, Tim Rogers. Opened your post while my wife brought my coffee this morning! She also likes cars. I asked her could she see the difference between Model T and Model A crankshaft. She immediately saw the difference! She said, "The Model A looks 'newer.' "
Bill
You can dissect a Model T; but you can’t kill it!
You can dissect a Model T; but you can’t kill it!
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Re: What is the difference between a Model T and Model A Crankshaft?
The back Main Bearing is also shorter by about 3/8th inch.
I don't recall the exact difference.
I don't recall the exact difference.