Me and one of my buddies have been arguing about this all day, he says ford came with a 7.1 in a 1990 F-350. Is this true because I have been arguing with him all day that the only 7.? diesel is the 7.3 and it was the IDI in that year model. Am I correct?

 

In 1990, they had the 7.3 V8 in pickups, and a 6.6 or 7.8 (6 cyl)in the F6-800.

 

Well, you're argueing for no reason. Your buddy has to be wrong. There was never any 7.1L Ford diesel. A 1990 Ford Heavy Duty would have the 7.3L Indirect Injection Non-Turbo just like you said. The first Ford diesel was the 6.9L IDI. Then the 7.3L IDI, which was just a 6.9L IDI redone to be a little bigger with better power. Then, the 7.3L was transformed to a direct injection (DI) system and a turbo was added. Then the POWERSTROKE was made!! Then the 6.0L Powerstroke, and the 6.4L Powerstroke. Then, because of the 6.0L/6.4L problems, Ford is building their own diesel, the new 6.7L Powerstroke V8 and they are sueing Navistar/International for the 6.0/6.4 problems which cost Ford billions of dollars. Any help there? Now you have 2 people that proved your buddy wrong.

 

Thank ya I will show him this thread the next time he is over here. Idiot people now days that think they know what they are talking about when they really don't have a clue.

 

correct, to a point.

you could also get the cat 7.2 liter 3216 engine, and the anemic 5.9 cummins in the f-650 to F-800 trucks.
but there was never a 7.1, and the only diesel engine offered in the pickup was the Navistar 7.3 IDI.

 

I was meaning for 1990 itself. I doubt the 3126 or 5.9 was available that year.

 

they were both options for the 1990 f600-800 trucks.
though the cat engine may have been the 3116.

 

i'm not rally sure ,but maybe an argentina straight six,may have been possible.

 

that would be the 6.6 and 7.8 engines.

and they were called Brazilian engines, not Argentina engines.

 

ford did produce a 7.1L diesel engine in the mid 80's. They were built for the class c motorhomes under the ford cobra brand. To my knowledge these are the only vehicles to ever be equipped with the 7.1l from the factory. It is possible to swap one into a truck set up for the 7.3l as the auto transmissions will mate up to both.

 

Ford never made a 7.1 liter diesel engine.
International Harvester made a 7.1 liter diesel engine.
it was an inline 6 cylinder engine and made around 160 hp at 2500 rpm.
the engine was also known as the DT 436.

it was used in International Harvester farm tractors.

 

Ok so yes there is a Ford with a 7.1 diesel motor in it. I’ve done light maintenance on them. It caught me off card while working for valvoline instant oil change in mankind New York.

It came in for an oil change , fluid check bottom and top. the guy driving it was very proud , got out and looked in the pit at a girl under his truck. Surprisingly he was more amused than concerned. I shouted to the computer person because the oil filter for the 6 something L was not the correct size and it looked like a number 23 and that specific filter only went on the cord Taurus and mercury sable. So I called up to my favorite worker and he was already down in the pit.

he instructed me to do an extra good careful job because this was a rare and amazing truck with a rare motor. Stevo taught me so much about cars trucks fixing fabrication real useful things on every day vehicles. The man new more about every single dang motor car body train you name it he knew it. He knew all of the little nuances and special exceptions to the rules if there ever was one he knew all about it. He showed me the 6 different locations to find a Vin number. He taught me why they need so many but I won’t be elaborating further.
He was and still is known for being able to fix anything but a broken heart. So he came over to my bay and told me how I can check 3 other ways to see if it’s the 1988 7.1 l.

1. Grease fittings. There’s an unusual number of them and the ford trucks usually don’t have one on the slip yolk. Or u joint This one has TWO. Like a tractor pto I later learned . Top and bottom. And then there’s upper and lower ball joints and drag link idler arm and 3 on the steering linkage (?) anyone have reason for this I’ve always wanted to know.
2. Transmission pan bolts. The ford 7.1 l had an automatic transmission stock the c6 3 speed transmission the 7.3 had a 4 speed automatic that had 20 bolts in the pan the 6.3 had 20 bolts but the odd 7.1 has 17. Count them. I’ll wait here. Weird right?? Like not 18 or 16 but 17!
3. oil filter is a vo23 weird
Now here’s the super weird part that I don’t know exactly. I think it was like a concept engine as a result of a projected engineer merger between ford and another motor company, but again it’s super super rare I want to say they only made a few hundred. Here’s the weird part in 2004-2009 ford made a limited number of f650s and 750s with the 7.1 l motors in them. BUT this was a way different motor from the 80’s 7.1 BECAUSE wait for it… it actually belonged to Isuzu!!!
No way noodles I know!! Fascinating.

I don’t know what it is about the history of engineering secretes and help outs and bail outs mergers attempted mergers parts purchases from liquidators going out of business gmc in Toyota t shirt like what?? That stuff just makes me so curious and I enjoy knowing the details about these mass producers. I think it’s very admirable how there are mix ups like this. It’s when times in history of mass consumption that manufacturers helped one another just for the sake of helping a friend that show humanity isn’t all sad noodles.

 

the 7.1 put in the F650-F750 trucks was a Caterpillar 7.1L Acert diesel.
the 6.3 is a Mercedes diesel, not a ford.
the only diesel engine offered by ford in a 1988 pickup truck was the 7.3L V8.
if you had a ford pickup with a 7.1 in it, it was swapped in by the owner, not by ford.
and the C-6 ford trans has 17 pan bolts.

 

. . . and the verdict is:




. . . both from the 1990 Ford F-series brochure.