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WD-9 / 4-71 Detroit conversion


IH OAK

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I saw on here in an old post where someone mentioned that there was a company that made conversion kits to put a 4-71 Detroit in a WD-9. Does anyone have information on these kits? Who made them? Were the rear ends able to handle that much power?

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5 minutes ago, IH OAK said:

I saw on here in an old post where someone mentioned that there was a company that made conversion kits to put a 4-71 Detroit in a WD-9. Does anyone have information on these kits? Who made them? Were the rear ends able to handle that much power?

This going along the lines of your TD9 engine issues?

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4 minutes ago, Reichow7120 said:

This going along the lines of your TD9 engine issues?

No...I do have a great running 4-71 in a wore out P&H excavator sitting here...No I aint putting it in my dozer.

Just wanted to learn, I couldn't find any info on it except for that thread and it is archived.(Now I can't even find it)

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I think this is the topic.

I guess it wasn't a commercially available kit. I couldn't remember.

Any info on this guy's (@IHterry's) build?

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13 minutes ago, Big Bud guy said:

The 4-71 would be all over the d282.  3-71s would take on a 282.  They could be had over a 100 hp.

Hmmm, I assume no one makes a drop in Detroit adapter for a 706 do they? You know, for if something happens

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2 minutes ago, 885 said:

Hmmm, I assume no one makes a drop in Detroit adapter for a 706 do they? You know, for if something happens

16V71?😆😆💣

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Those Detroit engines were the catalyst of the invention of hearing protection ...

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1 minute ago, bitty said:

Those Detroit engines were the catalyst of the invention of hearing protection ...

What?

 

 

 

wretched things.

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Just now, vtfireman85 said:

What?

 

 

 

wretched things.

Absolutely miserable. At one time we had four 671 (terex C6, gallion T600, Gardner Denver compressor, and an IH truck) and one 471 (Michigan 175 loader) engines . Glad a few are gone . Don't use any of them anymore besides the Gardner Denver 750 compressor

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4 minutes ago, bitty said:

Absolutely miserable. At one time we had four 671 (terex C6, gallion T600, Gardner Denver compressor, and an IH truck) and one 471 (Michigan 175 loader) engines . Glad a few are gone . Don't use any of them anymore besides the Gardner Denver 750 compressor

I spent a whole summer in a Hough 65 with a Detroit, I think it was a 371, I have 0 fondness for them. 

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2 minutes ago, bitty said:

Absolutely miserable. At one time we had four 671 (terex C6, gallion T600, Gardner Denver compressor, and an IH truck) and one 471 (Michigan 175 loader) engines . Glad a few are gone . Don't use any of them anymore besides the Gardner Denver 750 compressor

Only one I have is a Silver 8V92 435 hp in a 1975 cabover Pete.  I like it.  

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1 minute ago, Big Bud guy said:

Only one I have is a Silver 8V92 435 hp in a 1975 cabover Pete.  I like it.  

I forgot we have a generator with a silver 92 on it. Pretty quiet compared to the 71 series engines . 

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"Palouse" who used to frequent RedPower posted pictures of a TD-14 that had been converted to a 471 Detroit.  Palouse was from the Palouse region of the sate of Washington.

I am with Big Bud-----thinking a 371 would be more inline with a WD-9.

I ran a couple of 371's as irrigation power units back in the 70--80s.  They were rated @ 70+/- hp @ 17--1800 rpm. 

The rated rpms on the 71 series will be in the 1800+/_ range (300+ rpm more than the original TD-9 or 14.

53 series Detroits speed range was approx 1,000 rpm higher.

A wide selection of injector sizes offered a range of power output with all Detroits.  They did operate best near their full rpm rating------not an engine to idle back much.

They were very adaptable to transplant------or build around.  Damm shame I have gotten too old to get anything accomplished anymore.  I have access to two 371s and two 453s (all in various needs of overhaul)-------and always wanted to transplant a 471 into my 1943 model TD-14.  We could do some swapping and long distance hauling and both be in business!!!!

I built a hydrostatic drive ditcher tractor using a 453------very simple engines to work with.  Very dependable------the 453s were rated @ 112 hp.

 

All of those days are behind me now-------but I still love the "music" of the old two stroke Detroits.  :wub:

Good luck------keep us posted.

 

Delta Dirt   (Avon  Ms. 38723)

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1 hour ago, bitty said:

Those Detroit engines were the catalyst of the invention of hearing protection ...

Used to own a Pettibone Carylift Super 15 with a 471 DD but it was originally a 453 DD. It's still running.  Screamin demons, for sure.  😱😈

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The old 2 stroke Detroits have the same problem the 282 has, most of the good service techs have retired that kept them running the last 40 years.

   If I had a 282 in a decent 706 I can't think of a better engine to replace the 282 with than a 5.9L Cummins.

   I really liked the 318 Detroits, 8V-71's,  They REALLY screamed in trucks in the 1960's, when I was 10 years old and they passed the RD450-6 in the CO-190 I was riding shotgun in.  First Detroit I was actually around much was a 4-53 in the Austin-Western grader scarifying roads, it spent lots of time with all six tires scratching for traction.  The brand new Austin Western grader the next summer had a 4-71 and a muffler about the size of it's fuel tank.

    When I drove over the road I normally had a choice of something Cummins powered, but I did get stuck in 6V-92 powered trucks a couple times, after I got out of town and on the road, a day off seemed like a much better idea.

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My uncle had a 1900 Oliver with the Screamin’ Demon in it. Their farm was about 3 miles away from us and you knew when he would start plowing in the fall. Sure miss those days, uncle is 75 and retired, and I think that tractor is gone. 
The only Detroit that I have driven, was in an old truck crane. Not sure what size it was, I only drove it twice. The only thing anybody would tell me was “Drive it like you stole it”

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I had a 1957 Oliver Super 99 GM. 371 Detroit in it and it finally ate 1 bull pinion which I welded new teeth on and reshaped them. ---It did work for many years after that and we ended up having to sell it. The last I heard he was still using it.

As far as Detroit motors, ----- BEST motors out there!! --- LOVE UM!!

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