Boy if this ain't ugly!

[bgilbert]

I knew about this condition in this first pic. Damn if its not ugly. Yeah I know, someday it will come off. These are pics of my 91, super nice looking on the exterior but damn ugly under the hood. Knew about it before I bought it, but at the price, I couldnt go wrong. My QUESTION is whats with the oil on the second pic? Is it just another tell of headgasket failure? Bill

 

[bgilbert]

Pulled these injectors out of my 91. They had been leaking fuel up out between the injector holddown nut and the head. Whats with the oil on each one? Bill

 

[MidwestMotorman]

Well, I can't help you with the injectors.

In the first pic, is that antifreeze or oil dye around the top of the fill cap???

In that first pic, I also noticed the homemade throttle rod linkage on the VE pump. It looks like you are due for the $20 updated throttle rod replacement.

 

[bgilbert]

I assume its antifreeze, even though for about the past 500 miles or so, I've had dex-cool the red stuff in there. It was in there before I did the flush and fill. I've never seen oil in the radiator or overflow bottle, but this truck has not been driven much let alone worked hard.



On the throttle rod, thats whats left of my 'get me home fix'. I bought two rods from DC, and the day I got them my neighbor broke his, so I sold one to him. This truck will get the hand me down old rod from my 89 that I upgraded. Bill

 

[BCaldwell]

Hi Bill, If that is anti freezein the oil inlet tube you may be looking at bearing failure in the engine s they don't like the green stuff. Bill

 

[phillips5]

Your radiater would have to be empty every 100 miles to make that kind of coating . are you losing antifreez and gaining oil.

 

[MidwestMotorman]

I have never seen antifreeze look green in the engine. Always seen it milky. In the pic, it looks just like engine oil dye used to find leaks. Is the oil dipstick rusty or have white paste on it?



Green antifreeze is hard on aluminum (especially bearings), the orange stuff is much friendlier.



Try retorquing the head bolts, then pressure test the cooling system. You may be able to get it a seeping headgasket to seal.

 

[CPG]

Do not overlook your oil cooler element, it could be leaking.



Chuck

 

[Greenleaf]

IT's true that oil/coolant mix turns a sort of dirty/milky color. Pull a few valve covers and let us know. Pull the oil drain after the engine has sat overnight and look close at what drains out for the first one and a half seconds. Then immediately reinstall the plug. Take an oil sample after the engine has run a bit to mix any and all contaminants. Of course, if you get coolant at the initial pull of the plug, you now know.



Fuel leaking between the hold down and injector body/cyl head? Oil covered injectors?



This sounds like a CB problem as he is the one assigned to post the impossible to distinguish problems..... how in the world could fuel leak out between the hold down nut/cyl head? Would have to originate from the injector body/nozzle retaining nut. Not common. Perform a leakage test using a bench tester.



At the same time you have an oil mess covering the injector body? Man, thats weired! Only thing that comes to mind is a leaking nozzle sealing washer and a engine that burns like tons of oil along with some terrible dribble from the injector nozzles. Cylinder pressures pushing this oily mess up around the injector body.



Cracked head at injector bores perhaps



Scott

 

[bgilbert]

[how in the world could fuel leak out between the hold down nut/cyl head? Would have to originate from the injector body/nozzle retaining nut. ] Ok well I havent driven this truck for a long time, maybe only once since november. I think maybe the fuel/mixture of ? was leaking between the holddown nut and the inj body. - Past the o-ring. Which, when I loosened the holddown nuts, I dont believe they were torqued properly. Which is why two or three were leaking-maybe.



Oil covered injectors? --> Come on I know alot of folks have removed injectors before and no one has found any covered in oil? On my 89, one injector had oil on it, the rest were dry to the bone and rusty. Maybe this is a tell of the early non-ic head cracking.



What I'd like to do know is find out how much it will cost to have my inj's cleaned, maybe recalibrated -such a thing?, then reinstall, put everything back together, try the suggestion of retorqueing head bolts-on both trucks. This truck never showed any symptoms of HG failure, no oil in h20, no overheating, no increase or decrease of oil level. ?? Never seen any milky oil. No loss of h20. hm,mm... Once the truck is back on the road, still needs a starter rebuilt. I will get an oil sample done.



Is there such a thing as oil dye to find leaks? Thanks again to all I appreciate the help. Bill

 

[Philip]

Is there such a thing as oil dye to find leaks

Yes there is. If you have a black light. Hit that green s$$$ and see if it glows. If it does. It most likely is dye.



PM Farmal and ask him for the place in Louisville that can clean and reset injectors. We were talking about it at the dyno day.

 

[CDegner]

Fluorescein is the dye that is used in leak detected mixes AND in anti-freeze. Confirming it glows is, which from looking at the pics I can tell you it will, will not help determine whether it is anti-freeze or leak detecting dye. If your oil is not milky after running, and you are not getting oil in your radiator, things are still clear as mud.



Carl

 

[bgilbert]

Well I feel much better, you guys are great. Checked it with a black light and yes it glows big time! Now my only concern is the oil on the injectors... Thanks again. Bill

 

[LV-CTD]

"What I'd like to do know is find out how much it will cost to have my inj's cleaned, maybe recalibrated -such a thing?"







Bill, got the following from the BoschUSA web site...



Scheid Diesel Service Co. , Inc.

4960 N 13th St

Terre Haute IN 47805-1608

Phone: (812) 466-7202

Fax: (812) 466-3957

E-Mail: -- email address removed --

Web Address: http://www.scheiddiesel.com

Factory Trained For: A, MW, P, P7, P8, VE, EC

Seal #: 1518



They should be able to handle your injector reconditioning. Call them for price.



Tom

 

[phillips5]

I would get them checked then some new washers and put it back to gether. If they wern't torqed properly and some time ago it had valve cover leaks that oil could have got in there. Or there is a lot of oil in the combustion chamber and the inj washers were also leaking then the oil would get in there that way also. In any event it has to be put back together and driven to find out. ps I will get that shut off sent to you.

 

[MidwestMotorman]

AHA... leak dye! Score one.

Now before you celebrate, open your radiator cap and shine that black light in there or around your overflow tank. If your coolant glows, then maybe someone was trying to trace a leak just like a headgasket. Perhaps this truck has had some service work recently before you got it?



On the injector oil... was that injector tight? You wouldn't have had a valve cover leak and that stuff got down in there (thru a crack or time sitting since November)?

Perhaps that cylinder is not firing or the injector is not working? If your combustion chamber does not fire, you will have oil or fuel coating the walls. If the injector does not work, you will just be pumping air and oil vapor. Take off a hose after the turbo and look for oil getting into the air system. Also take off the valve cover for that cylinder and check to see if the rocker arms are on/off or if they are way loose.

 

[bgilbert]

BTW, all 6 injectors were covered with oil. Monday I will be buying some brushes for the starter and I will rebuild it, then I'll get this truck back together. Summer time is close and I'm going to drive it alot more. We'll see what goes. Bill

 

[TrqMonster]

should have called me

Bill, you should have called me and I could have solved the oil dye question for you. I just happend to see what you have been posting for any news of the old 91. I had Dons Service Center check to see where the majority of oil was leaking sometime last year. Unfortunetly there was too much build up for the dye to be effective so they suggested a thourough cleaning and start with the valve cover gaskets.



Sorry you have been wondering what that was. Should just be the oil dye.



Ivan

 

[bgilbert]

Ya see that, should have called the PO. After I bought it, did the degrease and steam wash, oil originated from VC gaskets, replaced them, injectors, -think they werent tight?-workin on it now, power steering hp line spraying everywhere, t-case rear output seal leaking-replaced. Thats about it.



I think this truck is wishing for some PW 185's, maybe I can find a deal on some used ones...



Oh yeah on this -> ( Also take off the valve cover for that cylinder and check to see if the rocker arms are on/off or if they are way loose. ) - well I didnt check valve lash, but if I grabbed the rocker lever assembly it would move back and forth, radiator to cab. A couple of them were this way. It didnt seem right?? Thanks. . Bill

 

[phillips5]

The rockers are going to slide back and forth when they are on the small part of the cam. There is suposed to be an air gap between the rocker and the valve stem. I for get how many thousands. They shouldn't slide back and forth a mile but the are going to move some.