I HAVE A 95 F 350 7.3 TURBO , I DRAINED RAD. STARTED DIESEL COMES OUT THE DRAIN HOLE OF RADIATOR. WHAT COULD CAUSE THIS?

 

injector orings i would think

 

I really doubt injector o rings. Or the injector cups if it's getting into the radiator.

Are you sure its diesel coming out of it? I've only seen that once and it was a cracked head.

 

why did you drain rad. to service or running hot

 

Cracked inj cup or head.

Bill

 

yeah im also going to go with injecctor cup, theres a special tool, a guy made one on PSN and hes selling it for decent money too. real easy to do form watching the video!

 

Had this on my buddys 2002 ...replaced Injector cups...fixed

 

is there a way to test for witch one or side. yes it,s puring out the rad drain hole.where can i find the video? i drained to chech for clogged heater core have not had heat for 6 months.rad is about 1 year old,new thermastic.I STARTED TO GET ALL WATER OUT TO REFILL WITH NEW ANTIFREEZE.

 

It's got to be injector cups, it's the only place #2 and coolant pass. And the fuel system runs at a much higer psi than the cooling system so it will overtake it and fill into the coolant.

A head would have to crack all the way from the fuel passage to the coolant passsage and I don't think that's very likely.

 

To test which side will be labor intensive but better than guessing. First you need to remove the fuel lines at the front or back of the head. One of them need to be plugged off Then put air pressure to the other one. Then watch the coolant bottle for bubbles. the head with air pressure it and bubbles is you leaking side. Its going to be pretty tough to get the lines off the rear but that is probably where I would put the air pressure and then use 1/8 inch pipe plugs to plug the ports on the front of the head.

 

Brought the links over from psn
They are just okay IMHO


How to put the orings on the injectors
http://www.youtube.com/v/64pom10RCwg&hl=en&fs=1

How to put the injectors back
Engine Pull :: Injector Install video by MazdaMartinb4k - Photobucket

How to purge excess oil from the cylinders after installing the injectors by marty.
Injectors :: Purging cylinders video by MazdaMartinb4k - Photobucket

 

Try this one:
Damn leaking fuel injector cup R&R project

Another:
http://www.thedieselstop.com/forums/...urprise-58500/

 

Tj

We just pull the inj's and pressurize the cooling system.

Bill

 

Yep that works too. Pretty much for me if I have one that is leaking I am going to do them all anyway. or at least on bank. The only reason we have done them that way is we don't have the tools to R+R the cups and diagnose the issue and tell Ford what to fix. One of these days I need to build those tools. I am sure I will need them.....

 

Some of the later heui changed to stainless. No more crack issues.
Thing is the job is much worse in van body types.
Its the install of the cup that is the real pita.
I refuse to pull a head or motor for a cup replacement as i have seen
others do.

Bill