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Vintage Diesel and Oil Stationary Engines Fairbanks Morse, Lister, Petter, Witte and other pump injected Diesel oil engines.

Vintage Diesel and Oil Stationary  Engines

1-71 Detroit Diesel (GM)


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  #61  
Old 09-05-2016, 02:20:29 AM
Vanman Vanman is offline
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Default Re: 1-71 Detroit Diesel (GM)

With them being so short, it's difficult to tell - Are they helical like the other 71 series rotors?
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  #62  
Old 09-05-2016, 04:14:36 AM
The Diesel Doctor The Diesel Doctor is offline
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Default Re: 1-71 Detroit Diesel (GM)

They are the same shape and diameter as one from a 6-71. Just cut to a shorter length to fit the housing. AL
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  #63  
Old 09-05-2016, 08:57:15 PM
The Diesel Doctor The Diesel Doctor is offline
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Default Re: 1-71 Detroit Diesel (GM)

Took a closer look at the rotors. They are straight cut not helical like their big brothers. The The rotor clearances are still adjusted with shims behind the gears AL
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  #64  
Old 10-12-2016, 07:06:48 AM
Myrle Gorsline Myrle Gorsline is offline
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Default Re: 1-71 detroit diesel

I have two of them. One with a generator is serial number 171116 and runs perfect.
The other which is a power unit is serial number 17108. Haven't had a chance yet to work on it, but motor is not stuck.
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  #65  
Old 10-12-2016, 01:31:20 PM
The Diesel Doctor The Diesel Doctor is offline
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Default Re: 1-71 detroit diesel

WOW, Low serial number. They had to have been built in the first year of production. AL
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  #66  
Old 11-20-2016, 02:26:48 PM
OldJalopy OldJalopy is offline
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Default Re: 1-71 Detroit Diesel (GM)

How many 1-71s are out there? I have one complete, running.
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  #67  
Old 11-20-2016, 03:27:09 PM
OldJalopy OldJalopy is offline
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Default Re: 1-71 Detroit Diesel (GM)

Quote:
Originally Posted by OldJalopy View Post
How many 1-71s are out there? I have one complete, running.
Brass tag on flywheel housing A-533 (USN) 171RA and on block 171577.
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  #68  
Old 11-24-2016, 12:56:46 AM
The Diesel Doctor The Diesel Doctor is offline
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Default Re: 1-71 Detroit Diesel (GM)

OldJalopy My guess would be around 1,000 built between 1937&1940. My numbers are 553&514 39 numbers different. Yours being 44. Post some pics of your unit. Aloha AL PS. Surfs up out here today.
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  #69  
Old 11-24-2016, 03:45:30 AM
The Diesel Doctor The Diesel Doctor is offline
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Default Re: 1-71 Detroit Diesel (GM)

OldJalopy, To answer your question as to how many are still around. I know of about 10. my guess would be less than 50. AL
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  #70  
Old 11-25-2016, 12:23:49 PM
OldJalopy OldJalopy is offline
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Default Re: 1-71 Detroit Diesel (GM)

Be interesting to develop a registry.
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  #71  
Old 11-26-2016, 02:05:28 AM
K-Tron K-Tron is offline
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Default Re: 1-71 Detroit Diesel (GM)

I have been trying to, but have not been receiving quite the cooperation that I was expecting. Most do not want to be bothered to send a picture or verify the serial numbers of their engines. The stamped number on the block and the information on the two tags are always welcome. Myrle's engines are the oldest I have seen by a long shot. I was told by several old timers that serial number 171101 was #1, but clearly it was 17101, as Myrle's is number 17108 (the eighth one made!) The highest number I know of is 171926, so they made almost a thousand of them. Send me a PM with your contact and I can add your engines to my list. Hopefully I can publish the info on a website in the near future, (at least serial numbers and state locations). I know of around seventy 1-71's, but only have serial numbers and model number of thirty-one engines. They are out there, but usually well hidden

Chris
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  #72  
Old 12-15-2016, 01:37:16 AM
The Diesel Doctor The Diesel Doctor is offline
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Default Re: 1-71 Detroit Diesel (GM)

Found this GM 671 marine engine in a rain forest. It is a Gray Marine model 64HN9 from a navy LVCP landing craft. It has the original Twin Disc mechanical transmission.
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  #73  
Old 01-05-2017, 07:17:58 PM
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Default Re: 1-71 Detroit Diesel (GM)

Cleaning up the block,oil and water passages. This engine was out in the elements uncovered for 30 some years before i acquired it. The cast iron is in amazing shape. (zinc chromate and Navy grey paint.) Close up view of 64 hole liner and piston rings. The rings are cast iron. The groves in the rings are a wear gauge. When they start to disappear it is time to replace. ALClick image for larger version

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  #74  
Old 01-06-2017, 02:20:12 PM
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Default Re: 1-71 Detroit Diesel (GM)

I think i may found the original home of ( 23)1-71 gen sets. The cover of the manual posted on Seattle craigslist caught my eye. (post by Slip Knot in 1-71 anyone.) In 1942-1945 Seattle Tacoma ship building corporation built 23 Patapsco-class gasoline tankers for the Navy.( The main propulsion) (4) 980HP 12-278A General Motors (Cleveland) diesel electric engines.( Ships generators) (2) diesel drive 225KW 120-240VDC !!!!!!!!(1) DIESEL DRIVE 10KW 240DC. !!!!!! Has anyone out there been on one of these tankers? ALOHA AL
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  #75  
Old 01-07-2017, 02:36:47 PM
The Diesel Doctor The Diesel Doctor is offline
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Default Re: 1-71 Detroit Diesel (GM)

CORRECTION: The US Navy Patapsco class gasoline tankers AOG were built in two shipyards. Five were made in the Seattle Tacoma Ship yard Washington from 1942-1945 Eighteen were made made in Cargrill Shipyard in Savage Minnesota from in the same time frame. They all list a diesel 10KW 120-240 VDC generator as the second back up. I am sure other Navy ships had these onboard in this time period. The 1-71 listed on craigslist is 50 miles from where the Washington shipyard was. I wonder how many of these units were made for the military, if not all. During this time everything was made for the war. AL
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  #76  
Old 01-14-2017, 02:28:02 PM
The Diesel Doctor The Diesel Doctor is offline
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Default Re: 1-71 Detroit Diesel (GM)

The engine block checked out good. Next step, Make gaskets and assemble.Click image for larger version

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  #77  
Old 01-16-2017, 05:20:02 PM
Sooty Jim Sooty Jim is offline
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Default Re: 1-71 Detroit Diesel (GM)

I posted this on an older thread but since this one is more current, please forgive me for duplication.

Do any of you know the last year the 1-71 was produced? I'm pretty confident that it's before 1949, since it isn't in an old GM diesel catalog I looked at from that date. I have a number of unconfirmed dates in the early '40s.

I am working on a short feature for Diesel World Magazine on a 1-71 I encountered (1-71G 171191). For the life of me, I can't find any readily available information that details the production run. Many thanks!
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  #78  
Old 01-16-2017, 05:59:28 PM
K-Tron K-Tron is offline
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Default Re: 1-71 Detroit Diesel (GM)

Hi Jim, Please get in contact with me. I sent you an email through this forum.

Chris
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  #79  
Old 01-16-2017, 11:26:02 PM
The Diesel Doctor The Diesel Doctor is offline
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Default Re: 1-71 Detroit Diesel (GM)

The two mains, four thrust washers and the rod bearing are the lead-bronze type.They were made by the Clevite Corp. in Cleveland Ohio. The company was founded and started making engine bearings in 1919. They looked strange without babbet. I thought they were worn out. They all miked out good. My plastic gauge showed a .003 bearing to journal clearance. They are going back into service.Click image for larger version

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  #80  
Old 01-17-2017, 12:43:43 AM
The Diesel Doctor The Diesel Doctor is offline
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Default Re: 1-71 Detroit Diesel (GM)

Jim, I have tried to get information from Detroit Diesel on the 1-71 with no luck. They must have archives somewhere with info these engines. K-Tron and I are on a quest to find production dates of the serial numbers. ALOHA AL
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