Does anybody nhave a picture of these engines or can get one. I work at a welding supply shop and I took a load of welders to be repaired to Atlanta to the shop we use and there was a old welder with a generator that was powered by a two cylinder Detroit. I was wondering if that was what I seen. Tim
Detroit 2-71 pics.
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http://www.green-trust.org/wiki/index.php?title=Green-Trust_Heat_%26_Power_System#It's_Running!
Not a great picture,(of the engine) I found it on the internet, it's not me! Most of the 71 series had knurled knobs for removing the valve covers, like seen in the pic to the left of his elbow in the pic( to his right). The 53 series had bolts around the edge of the valve cover,holding on the valve covers, like a car. But I don't think they made a 2-53.
Not a great picture,(of the engine) I found it on the internet, it's not me! Most of the 71 series had knurled knobs for removing the valve covers, like seen in the pic to the left of his elbow in the pic( to his right). The 53 series had bolts around the edge of the valve cover,holding on the valve covers, like a car. But I don't think they made a 2-53.
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Nope, no 2-53's were made.
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Nope, no 2-53's were made.
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Actually lotsa 2-53's were built! They're found on portable welders, small light plants, trash pumps, and compressors, in railcar refrigeration power units, etc. The 2-53 powered the John Deere 435 ag tractor, also the 440 diesel crawler. ...FB
Nope, no 2-53's were made.
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Actually lotsa 2-53's were built! They're found on portable welders, small light plants, trash pumps, and compressors, in railcar refrigeration power units, etc. The 2-53 powered the John Deere 435 ag tractor, also the 440 diesel crawler. ...FB
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I don't have pics handy but Detroit made:
1-71(yes, a ONE CYLINDER), 2-71, 3-71, 4-71, 6-71, 6V71, 8V71, 12V71,16V71
2-53, 3-53, 4-53, 6V53, 8V53
6V92, 8V92, 12V92, 16V92
8V149, 12V149, 16V149, 20V149
Plus the 110 Series, 60 Series, 50 Series, and the little known 51 series.
For most models, the first number was the number of cylinders and the second number was cubic inches per cylinder.
WS
1-71(yes, a ONE CYLINDER), 2-71, 3-71, 4-71, 6-71, 6V71, 8V71, 12V71,16V71
2-53, 3-53, 4-53, 6V53, 8V53
6V92, 8V92, 12V92, 16V92
8V149, 12V149, 16V149, 20V149
Plus the 110 Series, 60 Series, 50 Series, and the little known 51 series.
For most models, the first number was the number of cylinders and the second number was cubic inches per cylinder.
WS
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[ QUOTE ]
For most models, the first number was the number of cylinders and the second number was cubic inches per cylinder.
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That only holds true for the 53, 71, 92, 110 and 149
The even numbered ones other than the 110 were just some number they thought up apparently.
I don't think they were even called "series" until after the 60 series came around, then they kind of made that term fit the older ones already in the line up. For instance the horrible 8.2L never had a "series" designation applied to it, as far as I know the closest it came to having an official name/number was called a V8-8.2
What is a 51 series?
Birken
For most models, the first number was the number of cylinders and the second number was cubic inches per cylinder.
[/ QUOTE ]
That only holds true for the 53, 71, 92, 110 and 149
The even numbered ones other than the 110 were just some number they thought up apparently.
I don't think they were even called "series" until after the 60 series came around, then they kind of made that term fit the older ones already in the line up. For instance the horrible 8.2L never had a "series" designation applied to it, as far as I know the closest it came to having an official name/number was called a V8-8.2
What is a 51 series?
Birken
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I thought about it last night and I stand to be corrected. Yes they made a 2 cyl. 53 series. My book here does not give any reference to it however. You did forget 1 engine. 24V-71. Not a twin either. There are 6 of these in Vegas now for standby gen sets. These are popular for marine use also.
Birken: you do not want to know about the 51 series. I worked on 2 of them. No not overhaul, just change the filters and oil. Had too get the aircompressor running. I actually removed the valve cover [if you called it that] and looked at the injectors. Yup it was everything they said it was. /ubbthreads/images/graemlins/shrug.gif
Birken: you do not want to know about the 51 series. I worked on 2 of them. No not overhaul, just change the filters and oil. Had too get the aircompressor running. I actually removed the valve cover [if you called it that] and looked at the injectors. Yup it was everything they said it was. /ubbthreads/images/graemlins/shrug.gif
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anyone have info on that 51 series detroit? this is the first i have heard of it and want as much info on it i can get [specs, pics, manuals...]
I've heard of 50 series but not 51. The 50 series was a four cylinder turbo that I seen in a truck paper. I was in a single axle International road tractor. I'm just going by what the paper said so I could be wrong. Looking again at the pictures, I think that was the engine I seen. Tim
Here's a link to a Det. 51 series manual /ubbthreads/images/graemlins/shrug.gif
http://www.marineengine.com/manuals/detroitdiesel/
http://www.marineengine.com/manuals/detroitdiesel/
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The 4-51 was a real oddball. It had NO VALVES, just intake ports on one side of the cylinder, exhaust ports on the other. Under the 'valve cover' on top of the head there was just the familiar pushrod operated unit injectors like all the other 2 strokes. The 51 was a cheap 'throw away' diesel for military gensets. I have never heard of it being used in anything else.
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BTW- there was a 12V-53 too. Very rare, used is some Euclid (the real 'Green Iron') road machinery. Basically 2 6V-53's end to end, but I think the block was 1 piece.
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The liner had 2 rows of ports. The blower had felt on the rotors. The injectors were driven sideways, not back and forth. They were used in compressors,gen sets, a few boats, and 3 repowers in a pickup that I have heard of. A 3-53 had more hp than the 4-51 engine had. Yes, there were NO valves. /ubbthreads/images/graemlins/crazy.gif
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I've heard that despite being a diesel, the 51 was NOT very fuel efficient. That would imply then that it had emissions issues - i.e. it smoked.
That's probably why Detroit quickly dropped the 51 and concentrated instead on the more complicated but efficient 71, 53 etc. 2-stroke descendents. ...FB
That's probably why Detroit quickly dropped the 51 and concentrated instead on the more complicated but efficient 71, 53 etc. 2-stroke descendents. ...FB
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BTW- there was a 12V-53 too. Very rare, used is some Euclid (the real 'Green Iron') road machinery. Basically 2 6V-53's end to end, but I think the block was 1 piece.
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GMC put two 351 cu in V6 gassers in the early 60's the same way for a 702 cu in V12. They replaced it with a 637 cu in V8 that was a v8 version on the 478 cu in v6.
BTW- there was a 12V-53 too. Very rare, used is some Euclid (the real 'Green Iron') road machinery. Basically 2 6V-53's end to end, but I think the block was 1 piece.
[/ QUOTE ]
GMC put two 351 cu in V6 gassers in the early 60's the same way for a 702 cu in V12. They replaced it with a 637 cu in V8 that was a v8 version on the 478 cu in v6.
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The blocks were not 1 piece. They bolted to the transmission in the center. If you looked at the seriel #'s it would indicate something like 12D****. The 12 meaning 12 cylinders, the D meant the 53 series. Model # would be a 5125-7000. This would mean: 5 = 53 series, 12 # of cylinders, 3= industrial, 7= RC type engine, the 0's would be a natural type engine. something like that. I have never seen the 6 cyl mounted with another one. 2 stock 53's would be approximatly 420 HP. One is bad enough, /ubbthreads/images/graemlins/bleh.gif never 2 of those things in my ear. /ubbthreads/images/graemlins/bleh.gif /ubbthreads/images/graemlins/bleh.gif
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That's why I said "most."
I did forget the 8.2 and intentionally left out the Series 40 and 30, which really aren't made by DDC but are converted DT-466 and T-444 (Power Stroke to us Ford guys)Internationals. The 8.2 was the company's first four stroke.
The 51 was in production from "about" 1950 to 1960. There were two versions, a four and a six and were even used in taxis, if you can imagine. Also, the 71 was in production since 1938 so it was not the child of the 51.
As to the 24V71, it wasn't that popular and almost considered experimental.
And the engines were refered to as "Series" before the introduction of the 60.
The Series 50 is a four cylinder version of the 60 and is counter-balanced to offset the natural vibration induced by the four cylinder design. It was primarily used in transit applications but was heavy and underpowered.
WS
I did forget the 8.2 and intentionally left out the Series 40 and 30, which really aren't made by DDC but are converted DT-466 and T-444 (Power Stroke to us Ford guys)Internationals. The 8.2 was the company's first four stroke.
The 51 was in production from "about" 1950 to 1960. There were two versions, a four and a six and were even used in taxis, if you can imagine. Also, the 71 was in production since 1938 so it was not the child of the 51.
As to the 24V71, it wasn't that popular and almost considered experimental.
And the engines were refered to as "Series" before the introduction of the 60.
The Series 50 is a four cylinder version of the 60 and is counter-balanced to offset the natural vibration induced by the four cylinder design. It was primarily used in transit applications but was heavy and underpowered.
WS
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[ QUOTE ]
The Series 50 is a four cylinder version of the 60 and is counter-balanced to offset the natural vibration induced by the four cylinder design. It was primarily used in transit applications but was heavy and underpowered.
[/ QUOTE ]
if DDC would have slightly engineered that 50 series, it wouldn't really need to balance shafts... from what i have seen, they just lopped off 2 sections of the 6 cylnder crank and cam.. so it isn't shaped like a normal 4 banger crank like... up down down up 180° apart... so it still has the separations 120° apart like the 6 cylinder
The Series 50 is a four cylinder version of the 60 and is counter-balanced to offset the natural vibration induced by the four cylinder design. It was primarily used in transit applications but was heavy and underpowered.
[/ QUOTE ]
if DDC would have slightly engineered that 50 series, it wouldn't really need to balance shafts... from what i have seen, they just lopped off 2 sections of the 6 cylnder crank and cam.. so it isn't shaped like a normal 4 banger crank like... up down down up 180° apart... so it still has the separations 120° apart like the 6 cylinder
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