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Weight of detroit 4-71

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Alvin

06-23-2001 19:29:22




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Can any body give me the appromate weight od a detroit 4-71 engine complete with filters ,starter flywheel. Thanks for any information that anyone can give. can my 2000# cherry picker hold it?..




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G Taylor

06-24-2001 08:02:53




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 Re: weight of detroit 4-71 in reply to Alvin, 06-23-2001 19:29:22  
If rebuilding it there are some important updates to improve starting, fuel efficiency, reduce emmisions & reduce chances of a run away.



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Joe Evans

06-25-2001 20:42:51




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 Re: Re: weight of detroit 4-71 in reply to G Taylor , 06-24-2001 08:02:53  
An old mechanic/operator told me that when he was with a big heavy and highway outfit and when it came time to test run the Detroits in the rack, they kept a couple of Columbus Ohio phone books handy to throw down the intake during a run away. Truth or fiction?



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Burrhead

06-26-2001 14:14:34




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 Re: Re: Re: weight of detroit 4-71 in reply to Joe Evans, 06-25-2001 20:42:51  
Fiction.

The intake would suck part of the book into the blower and then it's good night Irene for the engine top end and blower.

Anyways the old jimmy always had a emergency kill flap in the intake chute. You just pulled a cable that closed the flap inn the intake.

The rack would hang wide open and the engine would run away when and injector would seize up.



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G Taylor

06-26-2001 23:13:30




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 Re: Re: Re: Re: weight of detroit 4-71 in reply to Burrhead, 06-26-2001 14:14:34  
The 2-53 used in 435 Deere's were not equiped with the emergency air shutoff. We just set the air-precleaner on the intake pipe loose enough it can be yanked off & the palm of the hand over the intake stack. If the oilbath aircleaners are overfilled, too light of oil used or an overspeed from other causes it will draw the oil up & away she goes. We did the dry filter conversion. A new blower seal(s) is now used on 53 series blowers to reduce chances of engine lube oil being drawn in. Requires a cutter to machine the blower end plates. If rebuilding a non-turbo engine use the 21 to 1 "N" series piston,sleeves & injectors.Use new valves & valve seats. Old reground equipment sinks the vales & lowers the compression causing hard starting. Keep the sleeve tops at exactly the same heights too or sealing will be troublesome. New 10-1/2 turn cam follower springs & the latest valve springs will allow 2400rpm max under load on a two valve head. Four valve heads use two different valve springs depending on the high or low lift cam being used.Either are rated for 2800rpm max governed load.

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Burrhead

06-24-2001 19:52:03




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 Re: Re: weight of detroit 4-71 in reply to G Taylor , 06-24-2001 08:02:53  
The 1st one I ever put a head on nobody told me about the runaway. It seemed like it took me 30 minutes to pull the emergency kill. :^) Some good came out of it tho. I can run the rack right everytime now.



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Burrhead

06-23-2001 20:27:21




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 Re: weight of detroit 4-71 in reply to Alvin, 06-23-2001 19:29:22  
Alvin the book gives the complete engine with starter at 2275.



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Alvin

06-24-2001 04:52:56




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 Re: Re: weight of detroit 4-71 in reply to Burrhead, 06-23-2001 20:27:21  
Thanks Burrhead--guess I better leave my picker up against the wall and find some other way to remove the hunk of iron from the machine!!



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john d

06-23-2001 23:12:10




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 Re: Re: weight of detroit 4-71 in reply to Burrhead, 06-23-2001 20:27:21  
Thanks for the post; I've wondered for over 30 years what one of those beasties weighed! When I got my first industrial arts teaching job in Northern Indiana, I was supposed to have two classes a day that consisted of a VERY general approach to auto mechanics. I told the administrators that I didn't think much of trying to do this in a facility that had a few tools and an overhead door, but class periods of 50 minutes or so. About all you could do was pull a car in, raise the hood, look around for a few minutes and then back it out before the next class came in to use the lab for something else!

About all I got from the higher-ups were dumb looks. So....I asked if there was any objection to me trying to get some stuff donated that could be worked on without being driven. They said "No problem!" I got the local wrecking yard to give me some engines and transmissions, I got a local company to donate some steel for stands, and pretty soon we had some things to work on. Then I started writing letters, and got a Mercury stern drive unit with engine, some stuff from Ford, GM, and Chrysler, etc.

I still didn't have a diesel of any sort, so I went on the search for a benefactor..... Eventually, after a bunch of correspondence, I got a note from GM that a distributor in TEXAS was going to contact me about donating a diesel engine. I was overjoyed when this company wrote me a note telling me that our school would receive not one, but TWO (2) GM 4-71 engines "not guaranteed to be in working condition...." Furthermore, they said they would arrange for shipping!

About a month later.....my principal appeared at the door to the lab and said "Did you order an engine from Texas?" I said "Somebody in Texas is supposed to be donating one to us, but I don't know when." He then said, "Well there's semi parked in front of the building with an engine on it that's about half the size of this room...and he says he's in a hurry to unload!"

When the semi backed around to our corner of the building, my heart sank....when the truck stopped and I got a good look, that sinking feeling turned to a feeling of total shock. What we had received was two engines, alright, but bolted together in a configuration that allowed them to drive through one big transfer case to a transmission for a bus!

This monster was nearly 8' wide, about 6' long, and on the angle iron stand to which it was bolted for shipping, it stood about 5' high!

Getting it off the truck took most of the morning, as we had to beg a local company to send its biggest forklift across town (they demanded a police escort to do that) and get very creative about how to block the thing onto the forklift so the truck could drive away. The assembly weighed far more than the forklift should have been trying to move. The driver carried it about 4" off the ground, and had to set it down inside the overhead door and leave it there because every time he tried to go over the little lip of concrete at the door, the rear wheels would come up!

It took us weeks to get that thing separated into two engines and get them set up so kids could work on them. What an adventure!

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Burrhead

06-24-2001 20:04:05




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 Re: Re: Re: weight of detroit 4-71 in reply to john d, 06-23-2001 23:12:10  
I bet it was a buger to unload. They join some 4-71 and 6-71 engines around here on fish boats and barge tugs.

I'd like to find a 6V53 it's only about 1750#. I could put it in a pickup. Put some red tag 85 injectors and a turbo on it and that might would pull my cow trailer.

I still think the old screaming Jimmies sound good. Better than anything in the road today.

What I really liked about the old Jimmies was that they cranked so easy. Even in the snow if it would turn just enough to grab the ether it would crank.

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mike jenezon

06-24-2001 22:18:31




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 Re: Re: Re: Re: weight of detroit 4-71 in reply to Burrhead, 06-24-2001 20:04:05  
yes i also want to find a 6v53 for a pickup i knew a local logger who had one in a pickup and it was very impressive he swore up and down it would get 18+ mpg and pull anything you hooked it to dont know if you ever heard of or saw the pheonix race truck that was at bonniville salt flats it was a 40's IH green with 16v jimmy that was him



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Burrhead

06-25-2001 09:56:07




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 Re: Re: Re: Re: Re: weight of detroit 4-71 in reply to mike jenezon, 06-24-2001 22:18:31  
I would'nt doubt that at all. I had one in a 6500 single axle Jimmy years ago. It would pull out pretty good with a gross weight of around 65,000 hauling machinery on a flatbed and would get 8 mpg or so.

Naw I have'nt kept up with the truck races or pulls in years.

The last truck race I went to was Atlanta in the early 80's Jason Tauton took it with a 12V71 in a green Kenworth.

Hershel Needham took the sled pull with his "Ole Bertha" blue Kenworth with a 8V92.

They had to flag Mr Needham off to stop him cause he was running out of the Arena with the sled. They figured something was wrong with the sled so they reloaded it and had him pull again, shore nuf he had to be flagged to a stop again with it.

When the sled started loading up that 8V92 sounded like a freight train and smoked like one too. It was the dangdest thing I had ever seen or have seen since.

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