Allen Cylinders maximum bore

jkimberln · Post by **jkimberln** » Sat Oct 17, 2015 5:52 pm

I am looking for cylinders with a bore of 2 3/4, stroke 3 3/16. Wonder if anyone has bored out an Allen mogul cylinder that far? I'm trying to avoid making a cylinder pattern. If not Allen, then has anyone else got a suitable cylinder for slide valves? No smoke box saddle required or desired.

Marty_Knox · Post by **Marty_Knox** » Sat Oct 17, 2015 6:13 pm

There is not enough material in the Allen cylinder to go anywhere over a 2 1/4" bore.

JD Johnson · Post by **JD Johnson** » Tue Oct 20, 2015 5:13 am

I have a set of cylinders that may work for you with no saddle. I will look and see how big they are and let you know.
JD Johnson, Morehead North Fork Railroad Historian

Post by **cbrew** » Tue Oct 20, 2015 9:06 am

if now, RMI cylinders "MAY" do the job, they finish out a little larger by its an opinion

JD Johnson · Post by **JD Johnson** » Fri Oct 23, 2015 4:46 am

I went and checked out the set of cylinders that I have.
Unfortunately, they are bored to 2 1/4" and the overall length of the cylinders is 5 3/16". There is not enough material to bore them to the 2 3/4" you wanted. Sorry.

I have had these for several years. Maybe someone here will want them.

JD Johnson, Morehead North Fork Railroad Historian

Mike Walsh · Post by **Mike Walsh** » Fri Oct 23, 2015 7:20 am

JD Johnson wrote:I went and checked out the set of cylinders that I have.
Unfortunately, they are bored to 2 1/4" and the overall length of the cylinders is 5 3/16". There is not enough material to bore them to the 2 3/4" you wanted. Sorry.

I have had these for several years. Maybe someone here will want them.

JD Johnson, Morehead North Fork Railroad Historian

Sent a PM.

JD Johnson · Post by **JD Johnson** » Fri Oct 23, 2015 1:08 pm

Mike,

PM Reply Sent to you.

JD

jkimberln · Post by **jkimberln** » Fri Oct 23, 2015 6:13 pm

JD Johnson wrote:I went and checked out the set of cylinders that I have.
Unfortunately, they are bored to 2 1/4" and the overall length of the cylinders is 5 3/16". There is not enough material to bore them to the 2 3/4" you wanted. Sorry.

I have had these for several years. Maybe someone here will want them.

JD Johnson, Morehead North Fork Railroad Historian

Thanks for taking the effort to check them out. I appreciate that.

JerryK

JD Johnson · Post by **JD Johnson** » Mon Oct 26, 2015 6:12 am

Everyone,

I have added a photo of these cylinders to this thread if anyone is interested. They come with cylinder heads and steam chest castings.

JD

Mike Walsh · Post by **Mike Walsh** » Mon Oct 26, 2015 6:41 am

Color me interested. I sent a reply PM to you JD.

I want to understand the dims of these cylinders and how they mount before committing to them.

Thanks,
Mike

JD Johnson · Post by **JD Johnson** » Mon Oct 26, 2015 8:42 am

Mike,

I sent you another PM.

JD

Post by **cbrew** » Mon Oct 26, 2015 8:58 am

Morning JD, those look like marine or stationary cylinders, is that correct?

The Home Machinist!

Allen Cylinders maximum bore

Allen Cylinders maximum bore

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Re: Allen Cylinders maximum bore

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Re: Allen Cylinders maximum bore

Re: Allen Cylinders maximum bore

Re: Allen Cylinders maximum bore

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