Oil in boost line
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Senior User
Joined: Jan 2002
Posts: 171
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From: Texas
Oil in boost line
I looked at my boost line today and there is oil in the line and around it. My instrictor at diesel mechanic school said that my turbo could be leaking oil into aftercooler and valve guildes or rings could be bad. Does anyone else have oil in their's or is it a problem??
Laughing Gas
Joined: Jan 2003
Posts: 1,082
Likes: 40
From: Melbourne, FL
Oil in boost line
My parents had this problem on their '99. The hose to the intercooler actually blew off of the turbo and this is when I saw the oil in the tube. I cleaned it out and the build up outside of the hose, put it back together, and about six months later the same thing happened. The hose blew of and the build up was back. Never figured out what the problem was. They traded it in on a new 6 liter. Let me tell ya, that's one hell of a set up.
Posting Guru
Joined: Feb 2001
Posts: 1,465
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From: Indianapolis
Oil in boost line
Unless you've got massive amounts of oil in there it is a normal part of a closed crankcase ventilation system. Unless you want to run a road draft tube (you'll have oil all over your driveway) or fab up some sort of catch tank for the blow by, you're probably just going to have to put up with it.
Junior User
Joined: Jan 2003
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Oil in boost line
That oil you are seeing is vary comon in PSD's reason being is that the powerstroke motor has an internal venting system for the crank case
Cummins do not the vent under neith the truck,
there are a couple of things you can do to prevent this
1. is to run a bypass and have it vent to the back of the truck or underneith the truck is easy to do
Where the air horn is from the air box to the turbo there is a black plastic housing under that housing there is a short 90% rubber hose, remove that from the plastic housing and valve cover go to Home Depot and get a 5/8 pipe about 1 1/2 long aand some rubber house and 2 hose clamps Take the 90% rubber house and turn it to the rear of the truck attach the pipe to it with a hose clamp andf then attach the long rubber ose with the other hose clamp to it and run it under the truck this will prevent vapor running into you motor and innercooler
Cummins do not the vent under neith the truck,
there are a couple of things you can do to prevent this
1. is to run a bypass and have it vent to the back of the truck or underneith the truck is easy to do
Where the air horn is from the air box to the turbo there is a black plastic housing under that housing there is a short 90% rubber hose, remove that from the plastic housing and valve cover go to Home Depot and get a 5/8 pipe about 1 1/2 long aand some rubber house and 2 hose clamps Take the 90% rubber house and turn it to the rear of the truck attach the pipe to it with a hose clamp andf then attach the long rubber ose with the other hose clamp to it and run it under the truck this will prevent vapor running into you motor and innercooler
Junior User
Joined: Jan 2003
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Oil in boost line
2.Make sure to plug off the opening on the plastic housing with a 5/8 or so rubber cover
THe oil thing around the innercooler pipe to the intake will also have oil around it too YOU DO NOT WANT OIL IN YOU INNERCOOLER,
If your turbo was going back you will be hearing a hard swooishing noise coming from it and it will be leaking under the turbo maininly on the exhaust side
The oil that you are seeing is coming directly from tha crank case breather, Leave it up to emisson to vent it back into the motor
THe oil thing around the innercooler pipe to the intake will also have oil around it too YOU DO NOT WANT OIL IN YOU INNERCOOLER,
If your turbo was going back you will be hearing a hard swooishing noise coming from it and it will be leaking under the turbo maininly on the exhaust side
The oil that you are seeing is coming directly from tha crank case breather, Leave it up to emisson to vent it back into the motor
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Senior User
Joined: Jan 2002
Posts: 171
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From: Texas
Oil in boost line
It is not leaking any oil there is just some oil in my line that goes to my boost gauge. It has been like that for a while though. I am going to take the intercooler pipes off today and see if any oil is in them.
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Elder User
Joined: Aug 2002
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From: South of you
Oil in boost line
Originally posted by myst
I looked at my boost line today and there is oil in the line and around it. My instrictor at diesel mechanic school said that my turbo could be leaking oil into aftercooler and valve guildes or rings could be bad. Does anyone else have oil in their's or is it a problem??
I looked at my boost line today and there is oil in the line and around it. My instrictor at diesel mechanic school said that my turbo could be leaking oil into aftercooler and valve guildes or rings could be bad. Does anyone else have oil in their's or is it a problem??
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Senior User
Joined: Oct 2001
Posts: 306
Likes: 1
From: Hollister, CA
Oil in boost line
Racor sells a filter for the crankcase vent hose that seperates the oil from the air before sending it back to the intake.
Try this link:
http://www.maesco.com/products/racor...ccv_intro.html
Reggie
Try this link:
http://www.maesco.com/products/racor...ccv_intro.html
Reggie
Senior User
Joined: Oct 2001
Posts: 306
Likes: 1
From: Hollister, CA
Oil in boost line
Racor sells a filter for the crankcase vent hose that seperates the oil from the air before sending it back to the intake.
Try this link:
http://www.maesco.com/products/racor...ccv_intro.html
Reggie
Try this link:
http://www.maesco.com/products/racor...ccv_intro.html
Reggie