oil in the intercooler tube!!

[tobaccogrower]

anyone out there ever blow a intercooler line and discover oil leeking out?? i blew a line ( the one that comes off the bottom of the turbo) today and after i limped it home( 4 miles) i found oil dripping out of the intercooler pipe moparmuscle gave me some contacts to speak to about this matter and they told me not to worry: the lower turbo oil seal is a needle and seet type seal and relys on pressure to control oil. do any of you have any diffrent ideas/opinions/recomendations on this matter?. . i'm going to run her tomorrow about 100 miles and put her on a dyno . i hope she holds together. WISH ME LUCK!!!thanks... ... james

 

[Steve St.Laurent]

Only thing I have heard is that some people have trouble with K&N filters (I notice you're running one) that are over oiled coating the entire intake tract with oil. I've heard of sensor problems because of this and well as reduced intercooler efficiency. Many people have reported an oil film inside of their boost hoses with K&N's - others report no oil at all inside their intakes. I've run K&N's on all my vehicles except my Cummins because of these concerns. Take it for what it's worth.

 

[HEMI®Dart]

RAMHEAD3437 Steve is right. Its the oil sucked out of your K & N. Mine did the same thing.

 

[tobaccogrower]

guy's:

i think the oil isn't from the k&n. when i drove home it sprayed all over my axel and other lower front components also, the oil was black and dripping out of the tube. if it was from my k&n wouldn't the oil be on the inside of the intake tube?the tube is spotless and bone dry. BTW, i pulled 355. 6hp on the dyno today . after i get my 100hp propane hooked up(tomorrow),maybe i can hit 440+hp... ... james

 

[KatDiesel]

Originally posted by RAMHEAD3437

BTW, i pulled 355. 6hp on the dyno today . after i get my 100hp propane hooked up(tomorrow),maybe i can hit 440+hp... ... james

Just curious, what type of dyno was this on? You have a propane system listed in your signature, is this what your refering to but not hooked up yet? So the dyno run was without propane ..... correct?

 

[tobaccogrower]

no propane yet

KAT:

propane is on the back seat. i havn't hooked it up yet. maybe tomorrow. the dyno was a dynojet. tried a big honking air filter and that made no change in hp. also tried a comp box(forgot to take off the VanAaken box) and that made no hp diffrance over what i usally run. when i get the propane on i'm gooing back to the same dyno to compare numbers. i hope i can beat moparmuscles 410hp by 20 or so ... james

 

[Chad Sheets]

Sounds like... gulp... . tubo oil seals. I hope I am wrong and it turns out to be nothing, but if I were you, I would have that turbo out on my bench inspecting every inch of it with a fine tooth comb.



You better get a finger on this before you start getting that oil on the intake heater grid, or even worse into the combustion chamber causing the engine to run away... it wont just suck the tube dry of oil, it will more than likely start pulling oil from the seals that are bad. Seen it, not pretty.



I hate to say this, but anytime I have saw the word turbo problems on one of our trucks, the words 4" exhaust also show up. They say that extra inch really makes a big difference in turbo RPM. I dynoed at 406 to the rear wheels with 3" and 50 lbs of boost. A guy was trying to get me to get a 4" system real cheap. I decided against it for a few reasons. I dont know what the cause or the answer is. I just know the two seem to go togather. Maybe its because everyone with big power is running 4", and the big power/big heat is doing it, I dont know. I just know you better get that figured out ASAP. If that preheater starts burning that oil, you might be giving the insureance man a call unexpectedly... which could be a good thing if you are looking into new trucks Better park outside. Keep us posted, and good luck. Let us know if we can help.

 

[Mopar-muscle]

chad , i agree , something is not right with that turbo , and if he has oil dripping out of the open tube then his intercooler et al is coated with engine oil .



chad question , you dynoed 406 with the mods in your sig ? what kind of dyno ? i'm dynoing about the same and the difference is i have DD#'s ... ??? i myself have been collecting the pieces to retun my 3in downpipe back on my truck and do a 4" catback system if you will . i need to quiet my truck down some and my thought was to put back the stock downpipe , i have one off a 97 , hope it fits , coupled with the factory resonator and then my dyno max and 4" tailpipe .

 

[tobaccogrower]

well, i took off the lower tube off my HX35 and there was NO oil in the tube. infact, it was spotless! could the oil be coming from somwhere else?... james...

 

[Chad Sheets]

No, I need to update that sig... I had big old hogged out DD3's with a little extra flown go to them than usual. I had to take them things out before I tore the crap out of everything the way I drive. I also had the valve timing pretty tight for the run. Mustang dyno. I was set to go propane with a hint of nitrous piped in after the heater grid with it disconnected, BUT, got some wild ideas about a 422 cu in small black mopar running through my head, and that will cost me a few beans. So I am saving my spare hobby money for that, and have concentrated on using my truck for just that, a truck.

 

[Chad Sheets]

Its not bad to find a touch of oil, kind of like a film, but dripping puddles like you had are another thing. Better get that disected and figured out. Are you SURE it was oil? Was is nasty like diesel oil, or was it red like K&N oil? Was it only in the tube from the turbo to the radiator area, or was in in the other side to? What is the oil level in the engine like? The oil you found originaly was inside the intake system after the turbo, right?

 

[HEMI®Dart]

James,



The oil's gotta be coming from the turbo oil drainback tube. The tube attaches to a rubber hose down along the side of the block. See if its leaking from there. Also check the tube where it attaches to the turbo. See if the bolts have loosened, or the gasket is loose.



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