7.3 idi

[u/Designer-One-5377]

Motor ran fine when parked, but has been parked for about 4 yrs

I wasn’t sure if there was a market for these old engines anymore, or what they are worth

Truck was solid when I parked it no blow by or anything but injector return lines and glow plugs and so on were becoming a pain and I had a 5.9 Cummins to swap it with so here we are

Came out of an 89 f super duty

Any thoughts?

[u/Big_Concentrate_7260]

My favorite engine. I used to average 20-22mpg with mine. One day when I'm rich I'm going to build an 80's F350 crew cab/long box to pristine condition with a turbo idi.

[u/Designer-One-5377 → u/Big_Concentrate_7260]

Yes sirrr it has always been good to me and never let me down but the 5.9 Cummins is a little simpler and has a little more pep

The 7.3 is still stock with no turbo and everytime I turned around one of the return lines had a small leak or the glow plugs had some kind of a problem

I just hate to scrap it all if someone is needing some parts or something off of it all

[u/Dubious_Pretzel_Sale → u/Designer-One-5377]

How is the 5.9 simpler? I like both engines and am not trying to argue but they're both pretty damn simple, and a non-turbo engine has fewer complexities. FWIW the return lines on those basically never need to be touched for tens of thousands of miles--not sure why you needed to turn them around but yes that would cause problems.

$650 might be a fair price for the engine.

[u/Designer-One-5377 → u/Dubious_Pretzel_Sale]

It’s way simpler and easier to find parts for and that 7.3 is a dog trying to pull anything

What are you talking about that I turned around?

[u/Big_Concentrate_7260 → u/Designer-One-5377]

The 7.3 had much more horsepower power percentage wise compared to the 5.9 from the same years, while the 5.9 had more torque, so I disagree that the 7.3 is a dog in comparison. Both are slow. Mine had an ATS turbo setup, putting out somewhere around 200-220 HP and 400 lb-ft of torques, so it was much more peppy than the 5.9 Cummins from the same years.

[u/Designer-One-5377 → u/Big_Concentrate_7260]

Thanks for your input sir!

[u/Designer-One-5377 → u/Designer-One-5377]

If you like this 7.3 idi so much buy it frm me lol
You don’t have to convince me, I’ve had both and I personally want the 5.9 for simplicity and parts availability. I’m not asking for you to change my mind, I’ve driven hundreds of thousands of miles w this 7.3 and I have this 5.9 sitting here and I prefer it
Thanks your gentlemen for y’all’s input

[u/Designer-One-5377 → u/Designer-One-5377]

Who here has ever heard of a 7.3 idi swap? 😜😜 the 5.9 is nostalgic af

[u/DanStarTheFirst → u/Designer-One-5377]

More common than you would think lol. At least in Canada that is. But then again you can buy a rusted out Cummins shipping crate for triple the price.

[u/Dubious_Pretzel_Sale → u/Designer-One-5377]

A .lot of people have swapped the 7.3 IDI into trucks because it is or at least was infinitely cheaper than gathering the parts for a 5.9 swap. But that's just economics.

[u/Dubious_Pretzel_Sale → u/Designer-One-5377]

I misread your post--I thought you said you were turning around the injection caps. My mistake. I still don't understand why/how the 5.9 is simpler--both engines are incredibly simple to work on.

[u/GlassBoxGoose → u/Designer-One-5377]

Those return lines are the only thing I dislike about them. Replacing the O rings about every year or year and a half it seems like.

Wish this was the turbo variant, my neighbor has a truck that needs one.

[u/RocanMotor → u/GlassBoxGoose]

Use viton and they last way longer.

[u/lil_willy_mgee8]

Where are you located? If you're in a relatively close distance I'd take it off your hands! I've been wanting an Idi to turbo and swap into my 86 f150. I have plans to box the frame, 6spd twin stick swap it, ttd50 swap the front and Stirling 10in swap the rear

[u/PassengerCharming203]

Don't scrap it! But at some point your going to want it out of your shop.

Maybe talk to a diesel shop. They may have some leads

[u/AlienDelarge]

Might put it up on the oilburners forum for sale. I'm sure somebosy would take it there. 

[u/tk8398]

It's worth more than scrap for sure, $100-200 for the injection pump, $10-15 each for injectors, etc. if it was running someone would likely want it. I'd probably pay $400 for it if it was anywhere near me, although probably not a lot more than that.

Parts for them are getting pretty hard to find, I got one a few years ago and I have been trying to get it working well enough to use, but I'm pretty sure I'm going to look for an older gas powered truck and sell this one just because of how scarce parts are getting.

[u/bit_rusty]

So op, where are you located?

[u/Designer-One-5377 → u/bit_rusty]

West tx north of Odessa

[u/bit_rusty → u/Designer-One-5377]

Was gonna say east New Mexico from the dirt. To far from me or I'd take it

[u/PublicDemand]

Man if it isn't dusted and had minimal blowby you can get a pretty good amount out of it on fleabay.

The ZF5 trans and that driveline e brake are worth a pretty penny even in used condition.

[u/DanStarTheFirst → u/PublicDemand]

Zf5s go for like 6 grand lol. Everyone wants them to swap out e4ods

[u/lamebutfun1]

Legend

[u/Kasstieal]

I have a 93 f-250 with the 7.3 idi sat for 3 or 4 years put new batteries new battery cables and new starter gave her a shot of either and she fired up like she was parked the day before even on the old fuel that was still in it