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Stationary Engines Discussion Forum

1-71 Detroit Engine

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cobroller

12-13-2004 19:07:00




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When I attended the Coast Guard engineman school in 1966 among the various engines they had was a 1-71 Detroit driving an air compressor. The instructors told us that there were less than 1000 built and that when the school closed in 1967 the engine was going to be given to the General Motors Museum. I have never seen another one of these engines and was wondering if anyone has.




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mike belnap

12-16-2005 23:37:14




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 Re: 1-71 Detroit Engine in reply to cobroller, 12-13-2004 19:07:00  
I have one if you would like to see pics e-mail me.



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A Robinson

08-28-2005 20:28:43




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 Re: 1-71 Detroit Engine in reply to cobroller, 12-13-2004 19:07:00  
Hi, Not sure if you are still after info on the 1-71 Detroit, but I saw one in perfect condition still attached to its original generator in a museum in New Zealand. I can perhaps send anyone who is interested a photograph of it.

Another museum that I am involved in has a 4-71 Detroit(late '60's vintage) that was rebuilt a couple of years ago (new pistons, rings, liners etc.)in a small shunting locomotive. It continues to be very smokey which isn't doing relations with our neighbours much good. It spends quite a bit of time idling but does work quite hard for short bursts hauling vintage trains up our steeply graded railway. We believe the motor was tuned for correct air / fuel mix during the overhaul but the blower hasn't been overhauled. Any thoughts?

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Andrew

12-22-2004 18:27:55




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 Re: 1-71 Detroit Engine in reply to cobroller, 12-13-2004 19:07:00  
I live near a vally and the high way runs up and down a steep hill. Back in the day some one had a adams grader with a 4-51 in it.. He lost his brakes and over reved it the rpm tac only went to 2500rpm and it went around once and back up to 2500rpm. the operator then took the ditch and droped the blade all the way down and dug 400 feet of willows and other small trees before comign to a complete stop. LOL be pretty scary. the engine held. my father did work on it and last seen it in a different RM it was a repower before it had a inline 6 chrysler. The 51"s rev high and smoke super bad because they use HV, LV, injectors same with the 110 series in the Ts24 Buggies you could see black telephone poles growing in the sky for 2 miles and hear them just like you were beside them. but very powerfull 350h.p moves alot of dirt and uses 300 gallons of fuel a day...

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buickanddeere

12-23-2004 04:53:28




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 51 series two stroke diesel Re: 1-71 Detroit Engin in reply to Andrew, 12-22-2004 18:27:55  
Wasn't the 51 series built without overhead valves unlike the 53,72,92 & 149 etc? They just used an intake and exhaust port in the side of the cylinder. I've heard stories that some would soot up the exhaust port with carbon and had to be chiseled out clean on a regular basis? >Link

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Andrew

12-23-2004 10:28:07




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 Re: 51 series two stroke diesel Re: 1-71 Detroit E in reply to buickanddeere, 12-23-2004 04:53:28  
that coudl be true. but htem exhaust ports were triple the size of a intake port. i imagine over some time it would carbon up. i liek the 6V53 on th edyno on that site. sounds nice



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J.Schwiebert

12-17-2004 03:38:19




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 Re: 1-71 Detroit Engine in reply to cobroller, 12-13-2004 19:07:00  
A man not far from here had 3 of them, still has 2. One had a cracked head and I have an Irontite kit that will put a new injector seat in it. He told me he traded it. How many 2-51 engines have you seen? I know another man who had a-71 and he also traded it. He told me most were made with generators attached and he worked for Detroit.



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cobroller

12-17-2004 22:12:45




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 Re: 1-71 Detroit Engine in reply to J.Schwiebert, 12-17-2004 03:38:19  
I"ve never seen a 2-51 that I know of. I believe they said the engine at the school was built in 1939 but that was 38 years ago so I could be wrong about that. The instructors also told us that at the Detroit school they attended they had a 6-71 without an oil pan mounted on a stand that you could walk under. After they had walked under it and saw that there were no rod caps on the rods the engine was started and ran for a short time to show that the rods always had down pressure on them. I don"t know how they kept the engine lubed and they may have been filling a bunch of young kids full of poop.

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J. Schwiebert

12-18-2004 15:15:27




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 Re: 1-71 Detroit Engine in reply to cobroller, 12-17-2004 22:12:45  
The rod thing is true, I do not know about the oil thing. I know the 4-51 is rather scare let alone a 2-51 This guy worked for a Detroit dealer. They are a rather unique engine. Where are you located. By the way the ports in those 1939 models are different also.



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cobroller

12-18-2004 18:41:56




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 Re: 1-71 Detroit Engine in reply to J. Schwiebert, 12-18-2004 15:15:27  
I"m in southwest Missouri. I believe they would run without the rod caps. I always wondered how the rods coming down before the engine fired stayed on the crankshaft. Maybe they only had the caps off the ones that were on the upstroke when they started the engine. I only worked on one or two Gray Marines after I left the school. Spent the last two years of my enlistment working on the Nordberg and Baldwin Lima Hamilton engines on the ship I was on. I have overhauled some 53 and 71 series since I got out.

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J. Schwiebert

12-19-2004 17:52:17




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 Re: 1-71 Detroit Engine in reply to cobroller, 12-18-2004 18:41:56  
I would like to talk to you more about the B-L-H engines. How do I contact you?



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cobroller

12-19-2004 23:03:49




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 Re: 1-71 Detroit Engine in reply to J. Schwiebert, 12-19-2004 17:52:17  
Would discuss what I can remember about the B-L-H engines. How can I contact you without the whole internet getting my e-mail address?



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J. Schwiebert

12-20-2004 09:05:12




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 Re: 1-71 Detroit Engine in reply to cobroller, 12-19-2004 23:03:49  
Go to oliver gang site and contact webmaster and or go to HPOCA site and send me a P. M. Try that first.



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cobroller

12-21-2004 20:55:04




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 Re: 1-71 Detroit Engine in reply to J. Schwiebert, 12-20-2004 09:05:12  
Sent e-mail to Oliver Gang Webmaster last night. Hope they let you know. Other sight was down.



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Larry from MD

12-14-2004 12:14:22




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 Re: 1-71 Detroit Engine in reply to cobroller, 12-13-2004 19:07:00  
Tuckahoe show has one and while there a fellow told me he had one at home.



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Rick Course

10-01-2005 15:13:24




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 Re: 1-71 Detroit Engine in reply to Larry from MD, 12-14-2004 12:14:22  
we have a running 1-71...with 10k generator
need manuals, and/or help...



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andrew onorio

09-12-2005 18:27:19




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 Re: 1-71 Detroit Engine in reply to Larry from MD, 12-14-2004 12:14:22  
I have been looking for a 1-71 either marine or stationary. I have a yanmar 315 engine in rebuildable condition with 300 hrs on it I am willing to trade for a 1-71. e-mail me at
andrew_onorio_sr@hotmail.com



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Chuck Kaufman

12-14-2004 04:29:03




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 Re: 1-71 Detroit Engine in reply to cobroller, 12-13-2004 19:07:00  
Saw one at Antique powerland show in Brooks Ore a few years back >I've been told most were shipped to England during WW2 to power search lights during the Blitz.



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