ok i got this 86 f-350 with the 6.9 in it...
i was wanting to know why it needs help getting started
the truck runs good and is gettin around 18mpg...
but to get her goin only in the morning it needs starting fluid ?????
after that first time in the morning it starts fine the rest of the day ....any ideas ???????/

 

I don't drive a dehsul, but I know a bit about them. I don't know where you live and if cold weather is a factor, but I suspect that in the mornings its cold and in the mid day its warmer. Your glow plugs are pry not working correctly and its hard starting.

In addition, I know and have heard that once you ether something its almost addicting. Case in point, D4 cat we couldn't start it for anything this winter. We tried and tried, well turns out the previous owners loved to ether the **** out of the thing. We hit it with ether and it starts right up.

 

Either your glow plugs are not working properly or there is air getting into the lines.

 

Bg I am curious as to how the air would only get into the lines in the night? I guess it could happen in that when it was started the fuel would push the air and then fuel would enter the motor. Seems plausible but I know every time I've ran a tractor out of fuel I get to fill it up and crack injectors, and crank it over...

 

It is a common problem with these IDIs. Leaking fuel return line caps, leaking seals in the fuel lines, or leaking return lines themselves. You get air in the system, and without cracking the injector lines, cranking it over takes a long time to purge the air.

On a side note, ether is very BAD for these engines if you do not disable the glow plugs. Even then, only a whisp of ether.

 

I doubt that, especially since you can't even spell D I E S E L

 

It was a joke man calm down. I know how to spell Diesel, however the method in which I spelled it reflects my accent with a southern drawl. It takes all kinds to detract and hijack this man or woman's thread....

 

You would know, that is all you ever do

 

ok so the truck has new glow plugs. new fule pump. new fule filter. how do i know what o-rings are bad or what return lines ? is there a kit so i can just fix all the o-rings and return lines? the truck runs well after it starts i took it on a trip last week it got 17.5mpg give or take. i live about 1hr from kansas city so i dont think its to cold in the mornings.

 

Go to the auto parts store and get an injector install kit. It will replace the return lines and caps on the injectors. The leaking o-rings are under them and inculded in the kit. The only thing you won't use are the 8 copper washers for the injectors. Cost is around 35bucks A dental pick will help with changing them. The lines will start to leak if you bump them doing glow plugs since they are old and dried out.

 

thanks for all the info it helped alot

 

ok i got the 86 f-350 with the 6.9 and a 4 speed manual trans.
what i want to know is will that tranny bolt up to a gas motor ? if so what motor will it bolt up to dose it have to be a big block?

 

Yes and No. the bellhousing is specific to a diesel but it can be unbolted from the trans, then you can get a gasser bellhousing of your choice to put in front of it