Packard Marine Engines 1M-357 & 1M-268

Information & discussion on Packard's non-automotive businesses.
Fourpack
Posts: 48
Joined: Mon Jul 06, 2009 2:51 pm

Packard Marine Engines 1M-357 & 1M-268

Post by Fourpack » Sun May 09, 2010 8:19 am

In the past I have donated post-war Packard Marine Engines to the Dayton museum, the Warren museum and the Packard Proving Grounds museum. I have now teamed up with PAC member Robert W. Valpey of New Hampshire to donate a cosmetically restored Packard 1M-357 marine engine to the Packard Proving Grounds museum. These engines were made between 1923 and circa 1931, but the production was very small; only about 200 engines. Very few still exist and as far as I know none in operating condition. Enclosed is a picture of the engine as received by Buxbaum Bros. Automotive Engineering, Inc., who is going to be doing the restoration of the engine. Also enclosed are three pages of a Packard marine engine brochure (courtesy Robert J. Neal) showing a picture of a 1M-357 engine and some specs.
Attachments
DSC01595 sm.jpg
brochure3 sm.jpg
brochure2 sm.jpg
brochure1 sm.jpg

Adam
Posts: 1064
Joined: Fri Sep 04, 2009 4:15 am
Location: lincolnshire, uk

Re: Packard Marine Engine 1M-357

Post by Adam » Wed May 12, 2010 6:15 am

What an interesting beast. It is far more than a marinised (is that a word?) road engine.

In the photo, the far end appears to have a bell housing, to mount the unit. Is there a drive coming off the crank at that end? Clearly there is a gearbox, presumably to provide a reverse, but is all the drive taken from the same, gearbox, end?

Interesting that the timing gears are between the engine and gearbox, like a number of modern engines eg Scania. Unsurprisingly there is a large water pump and what appears to be a water cooled exhaust manifold??

Adam..
"Do not underestimate the English cousin.....they are not as stupid as they look!" - Signor Altabani in The Italian Job.

Fourpack
Posts: 48
Joined: Mon Jul 06, 2009 2:51 pm

Re: Packard Marine Engine 1M-357

Post by Fourpack » Wed May 12, 2010 1:26 pm

The Packard 1M-357 engine was based on the Single Eight automotive engine but shared little except for the basic design. Bore and stroke were the same (3 3/8 x 5). The Single Eight automotive engine was rated at 84 h.p. at 3,000 RPM. The 1M-357 was rated at 60 h.p at 1,800 RPM. For marine use the engine was "turned around" so the reverse gear was mounted on the the timing case. As you can see the distributor is also mounted on the timing case. The automotive water pump was eliminated and replaced by a special marine water pump driven from where the generator is on the automotive engine. The generator on the 1M-357 is at the "front" and driven by a shaft from the water pump. The starter is in the normal automotive position. All engine power is taken from the timing case end of the motor. The exhaust manifold is water-jacketed.

There was a six cylinder version of Packard marine engine at the same time as the 1M-357, or actually a little before. I will be posting some information on the 1M-268 Packard marine engine shortly.

Fourpack
Last edited by Fourpack on Wed Sep 29, 2010 10:50 am, edited 1 time in total.

Adam
Posts: 1064
Joined: Fri Sep 04, 2009 4:15 am
Location: lincolnshire, uk

Re: Packard Marine Engine 1M-357

Post by Adam » Thu May 13, 2010 12:06 am

Fascinating. I can see now, from your description that the engine is turned around and the gearbox attached to the front end. Would there have been more than one speed in each direction in the transmission?

Adam..
"Do not underestimate the English cousin.....they are not as stupid as they look!" - Signor Altabani in The Italian Job.

Fourpack
Posts: 48
Joined: Mon Jul 06, 2009 2:51 pm

Re: Packard Marine Engine 1M-357

Post by Fourpack » Thu May 13, 2010 3:17 pm

Only forward and reverse. Incidentally, the reverse gear (or transmission) was made by Paragon, who made many different types of marine reverse gears for many years.

Data sheet on the sister engine, the six cylinder 1M-268, is attached for your viewing pleasure. Again, courtesy Robert J. Neal.

Fourpack
Attachments
1M268d sm.jpg
1M268c sm.jpg
1M268b sm.jpg
1M-268a sm.jpg
Last edited by Fourpack on Sat May 22, 2010 4:10 am, edited 2 times in total.

Adam
Posts: 1064
Joined: Fri Sep 04, 2009 4:15 am
Location: lincolnshire, uk

Re: Packard Marine Engine 1M-357

Post by Adam » Fri May 14, 2010 12:10 am

Thank you. Very interesting.

Adam..
"Do not underestimate the English cousin.....they are not as stupid as they look!" - Signor Altabani in The Italian Job.

Randy Berger
Posts: 206
Joined: Tue Jul 07, 2009 8:00 pm

Re: Packard Marine Engine 1M-357

Post by Randy Berger » Wed May 19, 2010 5:34 am

Very interesting and thank you gentlemen for preserving these engines and donating them to various venues where we may all learn a little more about Packard and its products.

Dave Czirr
Moderator
Posts: 4977
Joined: Tue Jun 16, 2009 5:30 am
Location: New Jersey

Re: Packard Marine Engines 1M-357 & 1M-268

Post by Dave Czirr » Fri Sep 03, 2010 12:22 pm

Fourpack just provided me with this image of the data plate from this IM-357. Note that as with other Packard marine engines up until the V8 era (Stokes conversions, and others) it was available in either right or left-hand rotation (matched pairs for dual shaft boats).

UPDATE: Adding a photo of the newly reproduced data plate, essentially a one-off project. Lovely custom work IMO. Photo again by Fourpack.
Attachments
IM-357 data plate.jpg
IM-357 data plate restored.JPG

Dave Czirr
Moderator
Posts: 4977
Joined: Tue Jun 16, 2009 5:30 am
Location: New Jersey

Re: Packard Marine Engines 1M-357 & 1M-268

Post by Dave Czirr » Wed Sep 29, 2010 6:33 am

I just received, courtesy of Mr. Ole Book, photos of the IM-357 Packard marine engine as the engine restoration nears completion and preparation for donation to the Packard Proving Grounds. Hope you enjoy these, it's a truly rare engine, only about 200 produced, and of course based on the Packard Single Eight car engine of the same era.
Attachments
IM 357 4 sm.jpg
IM 357 3 sm.jpg
IM 357 2 sm.jpg
IM 357 1 sm.jpg

MKCSyd
Posts: 1
Joined: Mon May 05, 2014 7:41 pm

Re: Packard Marine Engines 1M-357 & 1M-268

Post by MKCSyd » Mon May 05, 2014 7:48 pm

1925 Packard Engine.jpg
Here is a picture of my 1M357 when I was rebuilding it. I still need to find a manifold for it. The original tag 106JLH posted above is from this engine.

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