Possible blown seals in engine
12-13-2004, 12:24 PM
#1
Top's Younger Twin
Thread Starter
Possible blown seals in engine
Well, I read on here where folks warned about having the extended crankcase breather hose extended but make sure its on an angle to let out any moisture so it does not freeze up.
I addressed the issue and I had some problems when I went from near freezing to VERY cold
-27 in about two hours of driving.
I am using about 4 liters of oil, smoking like a freight train...ugly blue smoke that smells like an old Chevy with bad guides.
Air was passing thru the hose but not enough with some ice in it.
This fix was one that was suggested to avoid getting fumes in the cab by the dealer. Even on an angle it will freeze up some.
When I shut the engine off, I climbed under and cut the hose off. So much pressure even with it whistling out the end, it blew my glove off and made a loud POP!
I called the dealer, limped her back home 800 kilometers and it goes in tomorrow to see what actually happened.
It really sounds like I blew a few seals in the engine.
A dealer in Edmonton said the same thing...they did the breather hose extension and had some fallout like this.
I'll post what the findings are asap...HEADS UP everyone.
Scotty
I addressed the issue and I had some problems when I went from near freezing to VERY cold
-27 in about two hours of driving.
I am using about 4 liters of oil, smoking like a freight train...ugly blue smoke that smells like an old Chevy with bad guides.
Air was passing thru the hose but not enough with some ice in it.
This fix was one that was suggested to avoid getting fumes in the cab by the dealer. Even on an angle it will freeze up some.
When I shut the engine off, I climbed under and cut the hose off. So much pressure even with it whistling out the end, it blew my glove off and made a loud POP!
I called the dealer, limped her back home 800 kilometers and it goes in tomorrow to see what actually happened.
It really sounds like I blew a few seals in the engine.
A dealer in Edmonton said the same thing...they did the breather hose extension and had some fallout like this.
I'll post what the findings are asap...HEADS UP everyone.
Scotty
12-13-2004, 02:08 PM
#4
Top's Younger Twin
Thread Starter
I tried having it just extended straight down but I still got fumes. So we ran it back past the trans.
It was on a slope but the moisture comes from the crankcase, not from outside so once it hits the REAL cold weather ir freezes up after awhile.
Irregardless, the cure never helped on my truck anyway. At least the dealer has it on file that DC said to take whatever measures needed to solve the fumes.
I should know more by Weds.
It was on a slope but the moisture comes from the crankcase, not from outside so once it hits the REAL cold weather ir freezes up after awhile.
Irregardless, the cure never helped on my truck anyway. At least the dealer has it on file that DC said to take whatever measures needed to solve the fumes.
I should know more by Weds.
12-13-2004, 04:28 PM
#6
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I had just done this fix about 2 weeks ago after some trial and error to get the fit right. I liked the loss of the oil fumes and thought that it was "case closed" on this mod. After reading scotty's post I thought I would double check mine because real cold weather is on the way here. I decided to start by drilling a weep hole in the bottom of the elbow at the end of the factory hose. As soon as I drilled it water began to weep from the hole. I had put the pipe on paying careful attention to the angle to keep things flowing towards the rear of the truck. Even with the angle of the pipe oily water was coming out of the hose. Looks like this is NOT the way to go in cold weather climates.
I have taken the hose off and extended the factory pipe straight down for now to see if that will help with the smell, but not allow water/oil to collect in the hose. This is crazy, I don't care if it is a diesel you shouldn't have to drive around for a 1000 miles every time you change the oil sucking oil fumes.....
I have taken the hose off and extended the factory pipe straight down for now to see if that will help with the smell, but not allow water/oil to collect in the hose. This is crazy, I don't care if it is a diesel you shouldn't have to drive around for a 1000 miles every time you change the oil sucking oil fumes.....
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12-13-2004, 11:51 PM
#9
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If you are using oil, you may have excessive blow by contributing to your problem of breather tube icing in the cold weather. I'm assuming that you put a lighter weight oil in for the winter months, ehhh? If so, you might have to go back to the 15w40 or the next weight higher. If you are getting a lot of miles on it, you may not be able to use lighter oils any more. You might want to check the turbo seals for leaks too. Going with heavier oils may cause hard starting, so make sure the batts and cables are good.
When you lengthen the breather tube, it gives it more time to cool and freeze, What about taking some 1/4 in gas hose and wrap it around the breather tube and hook it to the heater hose or the bypass hose? Might help.
When you lengthen the breather tube, it gives it more time to cool and freeze, What about taking some 1/4 in gas hose and wrap it around the breather tube and hook it to the heater hose or the bypass hose? Might help.
12-14-2004, 02:33 AM
#10
Registered User
With that much pressure in the crankcase, I would think it may have pushed oil past the valve seals, and ring sealing would be reduced...
Now that the breather is open again, I think I would run it around and see if the oil consumption and smoke go away.
Maybe you got lucky and it didn't hurt any seals...
Now that the breather is open again, I think I would run it around and see if the oil consumption and smoke go away.
Maybe you got lucky and it didn't hurt any seals...
12-14-2004, 10:12 AM
#11
Top's Younger Twin
Thread Starter
I have ran the truck [as per dealer and a post here] for several hundred kilometers empty.
Still smells like an old small block with bad guides and I use a liter per 200 Kilometers.
Its going to the dealer this afternoon. We are checking turbo and everything else.
I am looking into a one way valve for the crank hose and plumbing it into the exhaust.
I received a few emails from folks that are doing this. I should not have to cater to all this because of the cause...it all started with fumes in the cab...they are back in a big way now with the hose cut off but only diminished a bit with the hose extended.
We are going to address all of this this week.
Scotty
Still smells like an old small block with bad guides and I use a liter per 200 Kilometers.
Its going to the dealer this afternoon. We are checking turbo and everything else.
I am looking into a one way valve for the crank hose and plumbing it into the exhaust.
I received a few emails from folks that are doing this. I should not have to cater to all this because of the cause...it all started with fumes in the cab...they are back in a big way now with the hose cut off but only diminished a bit with the hose extended.
We are going to address all of this this week.
Scotty
12-15-2004, 02:08 AM
#12
Registered User
Scotty,
It is clear your problem is more than freezing condensation. Water vapor is a byproduct of combustion. You are suffering severe blowby, which is inline with your your excessive oil consumption. I am afraid your motor is used up. Running a line from the exhaust to the breather pipe will not work for a multitude of reasons. The first is temperature, the second is reversion frequency. You will very shortly trash any check valve you install in that line. I don't know how many miles you have on the motor, but 300,000 should not be an unreasonable expectation. If your mileage is less, it could be caused by excessive fueling washing the lube off the cylinder walls or inadequate air filtratration. I would do a leak down test for each cylinder before dissassembly just in case it is only one cylinder. In the latter case the rings could have been damaged by a simple injector leak over a period of time. In any case, I would really be interested to know the cause.
Steve
It is clear your problem is more than freezing condensation. Water vapor is a byproduct of combustion. You are suffering severe blowby, which is inline with your your excessive oil consumption. I am afraid your motor is used up. Running a line from the exhaust to the breather pipe will not work for a multitude of reasons. The first is temperature, the second is reversion frequency. You will very shortly trash any check valve you install in that line. I don't know how many miles you have on the motor, but 300,000 should not be an unreasonable expectation. If your mileage is less, it could be caused by excessive fueling washing the lube off the cylinder walls or inadequate air filtratration. I would do a leak down test for each cylinder before dissassembly just in case it is only one cylinder. In the latter case the rings could have been damaged by a simple injector leak over a period of time. In any case, I would really be interested to know the cause.
Steve
12-15-2004, 07:41 AM
#13
These are available at Jegs or Summit. It's the same system I have on my race car. I've also seen on the web people using this system on turbo equipped cars and the exhaust gets alot hotter on those things than our truck.