4M-2500 blueprints

Information & discussion on Packard's non-automotive businesses.
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maagneto
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Joined: Thu May 26, 2011 12:37 pm

4M-2500 blueprints

Post by maagneto » Thu May 26, 2011 12:42 pm

Hi,

I would like to know if anyone has an idea how I can acquire/access 4M-2500 engine blueprints.

Specifically, I'd like to know the diametral pitches of all gears used in its construction.

Thanks!

Dave Czirr
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Location: New Jersey

Re: 4M-2500 blueprints

Post by Dave Czirr » Fri May 27, 2011 6:02 am

I don't know what archives the U.S. Navy might have but that's certainly one place to start, though it's likely to be a slow process moving thru the machinery of government.

Another idea is you might contact Robert J. Neal, author of "Master Motor Builders" who devotes a detailed chapter to this engine in the book. Mr. Neal does drop in on this forum on occasion but you might do better to contact him thru his publisher:

Aero-Marine History Publishing Company
P.O. Box 5582
Kent, Washington 98064

maagneto
Posts: 2
Joined: Thu May 26, 2011 12:37 pm

Re: 4M-2500 blueprints

Post by maagneto » Fri May 27, 2011 7:00 am

Thanks for the tips, I'll look into it.

Regards

william palmese
Posts: 1
Joined: Thu Jun 02, 2011 2:09 pm

Re: 4M-2500 blueprints

Post by william palmese » Thu Jun 02, 2011 2:16 pm

There is a running totally restored PT Boat in Portland Oregon, Also i know a guy in our Band of Brothers who was a motorman on PT 332. Totally stripped his boat won a race just after the war with top speed o 58 knots.

Dave Czirr
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Location: New Jersey

Re: 4M-2500 blueprints

Post by Dave Czirr » Fri Jun 03, 2011 5:43 am

LInk to more information about the Oregon PT boat.

http://videos2view.net/PT658.htm

4M2500W14
Posts: 4
Joined: Thu Jul 07, 2011 6:09 am

Re: 4M-2500 blueprints

Post by 4M2500W14 » Thu Jul 07, 2011 6:18 am

Did you have any luck finding prints of the engine?
I have reams of Navy and Packard maintenance and ops info, but no prints.

If I may ask, what are your plans once you have the gear data: reproduction reverse gear?

khushfehmi045
Posts: 1
Joined: Wed Dec 10, 2014 2:41 am

Re: 4M-2500 blueprints

Post by khushfehmi045 » Wed Dec 10, 2014 3:51 am

Another idea is you might contact Robert J. Neal, author of "Master Motor Builders" who devotes a detailed chapter to this engine in the book. Mr. Neal does drop in on this forum on occasion but you might do better to contact him thru his publisher:??
Get fast success in Braindumps.com and OG0-092 exam exam questions by using our latest exam uconn.edu.

JWLawrence
Posts: 127
Joined: Mon Mar 10, 2014 7:13 am

Re: 4M-2500 blueprints

Post by JWLawrence » Wed Dec 10, 2014 11:03 am

Mr. Neal will probably not reply due to health issues. His book, "Master Motor Builders", may still be available.

(o{}o)

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