Should I have any kind of oil sitting in my turbo intake side??

[Polarisrocks]

These are pics of oil sitting in the intake side after a 60-70 mile ride. I have been told by our local turbo shop that there shoulnt be any oil on the intake side. here are a pic. give me your opinion

thanks Jim

 

[Polarisrocks]

Does the mcx rear mount have these issues??? Should I be using a 1/2 quart of oil every ride?? This is supposed to be a new insert from outlaw a few hundred miles ago.

 

[Need for Speed 2]

No Bud you should not see oil like that. In 06 I put 7500 miles on an apex with MCX 310h.p. and never put a drop in between 1 oil change. I think maybe your return is kinked or blocked .

 

[Angermangement890]

It is also possible that you have too much oil pressure if you are using a GT series turbo. Garret says the GT series needs 25-40 PSI for optimal resonse, anything over that is overkill and actually hurts performance. Over 60 PSI and oil will work its way past the seals. Most kits using GT turbo's have an restricter in the oil line to bring the pressure into the proper range.

 

[happyhour]

Had that same problem ended up changing the return line on the bottom of the turbo and it went away the line didn't look bad at all. Going to change the line out with a steel braided line so hopefully it does not happen again . Another thing every time I start mine up when its cold it will blow oil out through the intake till it warms up. By chance is yours doing the same thing

 

[Lunch_Box]

No you shouldnt have oil like that. Since you have it appart grab the turbin shaft and give it a wiggle and see how much up/down and in/out play there is.

 

[zebiraross]

I wouldn't worry about it. Do you have a oil restrictor? If not you really need to get one or it will burn oil like that. Also, make sure your return line doesn't have any kinks in it. Those two things will help you. The seals in gt series turbo's don't just go bad, unless you have some huge turbo failure. You would know if this happend if the compressor wheel rubs on the compressor housing at all. Oil will howevery slip past them if the pressure isn't right by lack of a resrictor, or improper return line. Oh, it will also happen if you overfill the oil to.

 

[mattymac]

alot of people put in a pilot jet in the supply side hose (I know OVS does) to keep the pressure down. A ball bearing turbo doesnt need alot of oil. Ive seen setups with a oil tank (two stroke) with a pilot jet as a restricter being gravity fed to the turbo with a "catch can" underneeth then just poured back in up top the next day!

 

[zebiraross]

Had that same problem ended up changing the return line on the bottom of the turbo and it went away the line didn't look bad at all. Going to change the line out with a steel braided line so hopefully it does not happen again . Another thing every time I start mine up when its cold it will blow oil out through the intake till it warms up. By chance is yours doing the same thing

Mine did. It's because when cold, the oil has more viscosity and is really thick, which means more oil pressure and you burn a little oil. When the oil has a chance to warm up it has less viscosity oil pressure goes to normal and your good to go.

 

[Lunch_Box]

If you want just put in an inline filter, it will act as a restrictor.

 

[johno]

Had one the same way and replaced it.

I had the same issue after replacing my intake turbine with too much heat and after that it made a funny noise and blew oil out the intake side.
The thought was that I damaged the intake seal by heat or pressure.

I have seen overpressured turbos blow smoke out the exhaust side but not the intake.
I am going to send it in and see if the seal was bad or what.
johno

 

[JTAB]

I have two Boondocker turbo's and I will see a little oil on the intake side of them. I would make sure you have a restrictor in the oil line Boondocker can supply you with one they are cheap. I myself would like to see a little less oil than what you have on the top picture and the bottom picture doesn't look too bad, just my 2cents worth.

 

[Polarisrocks]

I think the oil is sitting in the gulley behind the turbin, and when it starts up it fans it out something crazy. I have never heard of this on a car or truck turbo. I have never seen a mcx have a smoke show after a fast roll over. the top picture is the next day after a 30 mile ride back to the truck after it layed on it side for 20 seconds. I was blown away, the next day i thought the thing was on fire, it filled my 30x40 shop with smoke, worse than my two stroke 1200wc. Is the same turbo on the mcx as the boondockers? Guess I should have done my homework before buying a turbo setup that uses oil and smokes on a daily basis. I bought the boondock for the weight loss. I guess I am still looking for more imput. I'm gonna read the ttly yamaha site a bit..

 

[savedbygrace]

The turbo needs to be able to drain at least as much oil as it receives. The BD kit comes with an orifice cup plug in the oil supply line to restrict the amount of oil supplied to the turbo. The other and most common cause of this problem has to do with the drain. The drain hose needs to maintain a downward slope from the turbo to the crank case. The drain hose also needs to be free from debris or oil sludge build up. If all this checks out good, you can also inspect the drain fitting in the bottom of the turbo. The fitting is threaded into a two bolt flange bolted to the turbo. With the flange removed from the turbo the threads on the fitting should not protrude past the flat surface of the flange. If they do you can grind the end of the fitting to the proper height, you may even grind a small dish in top of this fitting. Excessive blow-by can cause high crank case pressure obstructing the drain as well. If the sled is rolled over oil can drain from the crank case in to the turbo, then with no place else for the oil to go oil may pass the seals into the intake or exhaust…the best fix for this to keep your sled on its track…lol...…lastly some times the turbo seal fail, however this is very uncommon and is usually the result of out of balanced/damaged turbine wheels or bad bearings. If this is the case BD will be able to get you fixed up.

Junior

 

[Polarisrocks]

this is what I found today. I found that the JIC fitting was through the plate over a 1/4 inch. I did cut off the excess pipe above the plate, and ground a bevel in it to help drain it better. I also found that the fitting has a long section before it bends horizontal to drain to the cases. I took a picture of how much lower the hose elbow is below tha case nipple, its about an inch. I dont know if this stuff if going to cause the kind of oil i've been seeing. I did try and level the hose more and made it shorter to take some of the bend out of it and raise it bit.

 

[absoluteapex]

the first picture of the oil looks like there is water mixed in with the oil giving it that milky coloring(emulsion)and no oil should be used