Information Requested: custom aluminum cast rods speed assessory
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Topic author - Posts: 726
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Information Requested: custom aluminum cast rods speed assessory
I came across these and would love any insight that you may have.
Matt-
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Re: Information Requested: custom aluminum cast rods speed assessory
I sent one to Dan McEachern, to look at years ago. Maybe he will chime in here?
Herm.
Herm.
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Re: Information Requested: custom aluminum cast rods speed assessory
I had and sold some of the same rods years ago, they came from Townsend Automotive. I still have a photo of the paperwork Townsend sent with them.
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Re: Information Requested: custom aluminum cast rods speed assessory
I have a set as well. They are designed for using a A crank in a T block with T pistons.
I believe that pressure filtered oil is essential as babbitting aluminum is a bit of a challenge.
Not impossible, just a challenge
I believe that pressure filtered oil is essential as babbitting aluminum is a bit of a challenge.
Not impossible, just a challenge
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Re: Information Requested: custom aluminum cast rods speed assessory
They're a great curiosity. I'd put them on the shelf. Those go back to a time before CNC machining. Machined rods from billet aluminum would be far better. And they're available.
There is a reason every critical casting in Aerospace gets X-Rayed and a test coupon comes with them. Those may be wonderful, but given all of the better choices today, I wouldn't trust them as far as I could throw them.
There is a reason every critical casting in Aerospace gets X-Rayed and a test coupon comes with them. Those may be wonderful, but given all of the better choices today, I wouldn't trust them as far as I could throw them.
Scott Conger
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves
Obsolete carburetor parts manufactured
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves
Obsolete carburetor parts manufactured
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Re: Information Requested: custom aluminum cast rods speed assessory
Aluminum rods;
I have a mid ‘20’s Scripps 330 cu in 6 cylinder 125 HP marine engine. They use cast aluminum rods and in conversations with others have never heard of a rod failure.
I guess it just depends how much HP you are going for perhaps. 60hp should probably be OK!!
I have a mid ‘20’s Scripps 330 cu in 6 cylinder 125 HP marine engine. They use cast aluminum rods and in conversations with others have never heard of a rod failure.
I guess it just depends how much HP you are going for perhaps. 60hp should probably be OK!!
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Re: Information Requested: custom aluminum cast rods speed assessory
Les, this is not to pick a argument, but are you sure they are cast and not forged? That would be all the difference in the world. My concern is not with the material, but the manufacture of it.
Scott Conger
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves
Obsolete carburetor parts manufactured
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves
Obsolete carburetor parts manufactured
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Re: Information Requested: custom aluminum cast rods speed assessory
And some quick research shows that aluminum rods in the early days was Lynite, and was indeed drop-forged: https://books.google.com/books?id=mxlQA ... od&f=false as an example of period text.
Scott Conger
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves
Obsolete carburetor parts manufactured
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves
Obsolete carburetor parts manufactured
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Topic author - Posts: 726
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Re: Information Requested: custom aluminum cast rods speed assessory
Wow! Thanks for all the information! This is definitely beyond my skill and tooling.
I will have to see where I can find a home for it.
Matt
I will have to see where I can find a home for it.
Matt
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Re: Information Requested: custom aluminum cast rods speed assessory
Scott
I have NO idea where you are getting your position about the drop forging bit. LYNITE is a trademarked product from a aluminum casting company for a alloy containing 10% copper and a bit of magnesium and iron.
Looking at the Scripps rods and other Lynite items there is NO indication that they are forged!
I have NO idea where you are getting your position about the drop forging bit. LYNITE is a trademarked product from a aluminum casting company for a alloy containing 10% copper and a bit of magnesium and iron.
Looking at the Scripps rods and other Lynite items there is NO indication that they are forged!
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Re: Information Requested: custom aluminum cast rods speed assessory
Les
I am not sure why my link above did not go to the right place, but it indeed does not. I hope this link will go to the right place (at least I've tried it independently and it does). In 1920 Aluminum Manufacturers, Inc., formerly Aluminum Castings Co., was hoping to introduce Lynite forgings into wide accepance in automotive use. I of course am not looking at the parts you have looked at and am not attempting to argue with you, though you appear to be taking this personally somehow, at least that is the feeling I get from your text. All of your boat motor parts may be indeed cast aluminum. Or some of them. Or whatever. I don't know and simply asked if you were sure. Apparently you are.
Knowing what we know now regarding materials, and knowing that the only sure way to ensure a homogeneous and defect-free casting is through NDT x-ray inspection, I would never consider using modern cast aluminum of an unknown alloy or quality as a connecting rod. That is my opinion, and it does no one any good to become angry with me for my opinion. As to what I have attempted to post earlier, and hopefully have successfully posted now, I am simply trying to impart some additional information from impartial and proven sources.
Hopefully this will link to the 1920 trade magazine correctly
https://books.google.com/books?id=UsonA ... um&f=false
In 1921, in Motorboating Trade magazine, forged Lynite rods are discussed: https://books.google.com/books?id=zAQ0A ... f=falseAnd
later, from 1930 Motorboating Trade magazine (later than we are talking about by a bit, but also describes forged Lynite: https://books.google.com/books?id=1L7Ib ... um&f=false
So apparently, Aluminum Manufacturers, Inc., (or someone) successfully developed a forging process for Lynite as evidenced by this article 1 and 10 years later.
All of this is meant in a spirit of imparting information and not meant as a personal attack.
I am not sure why my link above did not go to the right place, but it indeed does not. I hope this link will go to the right place (at least I've tried it independently and it does). In 1920 Aluminum Manufacturers, Inc., formerly Aluminum Castings Co., was hoping to introduce Lynite forgings into wide accepance in automotive use. I of course am not looking at the parts you have looked at and am not attempting to argue with you, though you appear to be taking this personally somehow, at least that is the feeling I get from your text. All of your boat motor parts may be indeed cast aluminum. Or some of them. Or whatever. I don't know and simply asked if you were sure. Apparently you are.
Knowing what we know now regarding materials, and knowing that the only sure way to ensure a homogeneous and defect-free casting is through NDT x-ray inspection, I would never consider using modern cast aluminum of an unknown alloy or quality as a connecting rod. That is my opinion, and it does no one any good to become angry with me for my opinion. As to what I have attempted to post earlier, and hopefully have successfully posted now, I am simply trying to impart some additional information from impartial and proven sources.
Hopefully this will link to the 1920 trade magazine correctly
https://books.google.com/books?id=UsonA ... um&f=false
In 1921, in Motorboating Trade magazine, forged Lynite rods are discussed: https://books.google.com/books?id=zAQ0A ... f=falseAnd
later, from 1930 Motorboating Trade magazine (later than we are talking about by a bit, but also describes forged Lynite: https://books.google.com/books?id=1L7Ib ... um&f=false
So apparently, Aluminum Manufacturers, Inc., (or someone) successfully developed a forging process for Lynite as evidenced by this article 1 and 10 years later.
All of this is meant in a spirit of imparting information and not meant as a personal attack.
Scott Conger
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves
Obsolete carburetor parts manufactured
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves
Obsolete carburetor parts manufactured
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Re: Information Requested: custom aluminum cast rods speed assessory
Scott and Les,
Thank You for the information and enlightenment!
All the Best,
Hank in Tin-A-See
Thank You for the information and enlightenment!
All the Best,
Hank in Tin-A-See
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Re: Information Requested: custom aluminum cast rods speed assessory
A very well known and highly regarded T speedster builder once upon a time thought it would be an interesting experiment to put a set of Lynite rods in one of his speedsters. Another fell known fellow who is known to regularly drive a bright yellow racing machine, purchased said speedster with the Lynite rods. Needless to mention, as it should be no surprise that said speedster needed a new cylinder block fitted in short order.
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Topic author - Posts: 726
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Re: Information Requested: custom aluminum cast rods speed assessory
Anyone know when these Townsend Automotive rods were made?
Matt
Matt
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Re: Information Requested: custom aluminum cast rods speed assessory
They were available in the ‘90’s. Townsend also offered Bronze main caps for A crank conversions and also block extension castings for these conversions.
I guess if you go back through old Vintage Ford magazines you can get a more exact time frame
I guess if you go back through old Vintage Ford magazines you can get a more exact time frame