Just bought an 1990 f250 7.3

[icanfixall]

Welcome to the site. We mostly take very fine care of our trucks. They can be repaired on the side of the road very easily too. Can't say that for the newer trucks of any make. I'll bet you need a set of injectors, glow plugs and an injector pump. Don't just run out a do this yet. You need to answer many more questions before throwing money and parts at it. Your location is important because someone may live near you and can "see" better whats going on so fill in your profile. It wont cost anything either. Then someone may be close by and can look things over. These are really easy motors to maintain too. Parts are not costly like any newer truck motor is. Your problem may be something really simple to fix. Maybe not. We just need more imput so post back with more asked information. Did the previous owner say if the injectors, injection upmp or the glow plugs were ever replaced? You may be able to tell just by looking at the return lines and the injectors. If they are painted gray just like the motor they may very well be the original ones and need to be changed....

 

[HorseBack4x4Gal]

Thanks for welcoming me to the board.
After many years of building Toyota Rock crawling rigs now I find myself working on tow rigs..

I have been so busying running around in and out I forget to add details..

The day before I bought the truck I started it, check out the eng... And so on..
There wasn't much Black smoke,, There was No WHITE OR BLUE SMOKE AT ALL. I Ran that truck for atleast half hour or so. I ran it up to 70MPH and then drove it make let it sit and then started it up again.

There was no Smoke.

The day I bought it we started it up and there was no smoke..
We drove it for about 10 plus miles on the way home before it ever started smoking...

So with that and what I have read.. I was thinking to start with the Return lines.

Oh and a few of the Injectors are Black few are Gray..
I didn't ask him much about the truck other then the Coolant thing..

Maybe I should have.. I knew the truck was going to need work done to it.
What I was looking for is the Eng being good.

I'm going to call that guy tomorrow and ask him.

 

[reklund]

Ok, you've got my attention. Details on the Toyotas, please!

I'm into Toyotas as well, and work as a master tech at a Toyota Dealership.

Ryan

 

[icanfixall]

Well... It sounds like some of the injectors are new and some are old. Not the best of repairs for sure. Most members will replace all the injectors at the same time. If you do replace them here is two things to keep in mind. Don't install rebuilt or remanufactored injectors. New ones are just as cheap so buy the best. Secondly do not buy from Diesel Care. Mr. Williams has been selling rusty injection pumps that were broken and ruined a new set of Ford injectors. Other members have had some problems with them too. I would say that if you were changing out the return line kit it would be a good time to replace the injectors. Your most of the way into the system by the time you remove the return lines and 2 o-rings per injector. If you go that way we can help with easy ways and most of all things really need to be clean. I wear white surgical gloves so any dirt will show up and then I change them. Any dirt going into an injector will kill it. The diameter of the hole that the fuel sprays out of is only 0.039. Thats 39 thousands. Now look at 12 pages of steno pad paper. For thickness. Thats about how small the hole is.

 

[HorseBack4x4Gal]

Ok, you've got my attention. Details on the Toyotas, please!

I'm into Toyotas as well, and work as a master tech at a Toyota Dealership.

Ryan

I have had an 82 P/U sold to buy an 87 runner fixed it up with straight axle gears lockers so on. I sold that for 6000 killer deal. I bought a few other runners and sold them. Just last week I sold an 84 runner that I just started working on. I needed a Break from spending money...
I will try to post up some pictures.

AKA PurpleYotaGirl

 

[HorseBack4x4Gal]

Heavy blue-white smoke will also occur when the engine is operated at wide-open throttle (accelerator pedal to floor) with the transmission in NEUTRAL or with a lightly loaded vehicle in any transmission gear setting. The smoke is a normal characteristic for a diesel engine with a light minimum to maximum governor spring in the fuel injection pump. This results in the following characteristics due to the engine operating above its rated speed (3300 rpm) in a no-load or lightly loaded condition:

Heavy blue-white smoke.

Fuel injection pump governor hunting resulting in high speed engine rpm surging.

Engine sputtering or misfiring.

The conditions can be eliminated by not operating the engine above its maximum full load rated speed of 3300 rpm.

NOTE: Chassis fuel system air leaks may also cause continuous heavy blue-white smoke


I pulled this off of All DATA! Input?

 

[tbirdfiend281]

ok, i didnt read threw what others have posted, only about 4 or 5 right after your original post.

before you shoot for the expensive fuel pieces, start with a new fuel filter, that could maybe be why the truck stumbled when first fired like you had said. then go from there. everyone is correct could be in need of a pump and injectors. double check to make sure there is no fuel leaks around the injectors and supply lines, as if the truck isnt geting all the fuel that is set, it may be out of a tune a bit, leading to the smoke

how powerful does she feel? whats your mpg like?

 

[tuckerd1]

I needed a Break from spending money...
I will try to post up some pictures.

AKA PurpleYotaGirl

You've come to the wrong place. These guys will have you spending money right and left! Add this, add that! Mo power! Mo power! Mo power!

Not really. You just get the bug hanging around here. Then you want to see what these old diesels can really do. It's fun tho!!

BTW, welcome.

 

[HorseBack4x4Gal]

You've come to the wrong place. These guys will have you spending money right and left! Add this, add that! Mo power! Mo power! Mo power!

Not really. You just get the bug hanging around here. Then you want to see what these old diesels can really do. It's fun tho!!

BTW, welcome.

This truck has tons of Power for me. You can smoke the tires..
Nah with the Ford I don't really want to fix it all up.. It is for Pullin the horses.

The Toyota for what I buy them for is to rock crawl The Cost never stops...

 

[TLBREWER]

Welcome to the site! Nice to see we have another female here taking interest in our hobby.

I have nothing to add to your dilemma...everyone else has already covered the basics. Welcome to your diesel education, and yes, we will help you spend your money. My trucks were originally for towing horses as well, but you will soon find that towing all that weight will fuel your need for MORE POWER. That's where we come in.

Tom