Engine fire! Repeated turbo oil feed line failure...
#1
Engine fire! Repeated turbo oil feed line failure...
Last night I was tuning out a 9:1 AFR rich spot that was causing a bog at 7,000rpm and I looked next to me and saw the highway on fire under my car!
I got the fire out w/ my extinguisher.
I had replaced the original stock turbo oil feed line (short one on turbo) with a brand new factory one because the old one had started to leak a bit around where the tube meets the flange and I figured a new one would be good for another 20 years or so.
The brand new ond had ruptured at the same spot sending 2 streams of oil each as thick as a Super Soaker stream onto the turbo exhaust housing.
Luckily, since that area is isolated/cleaned up for relaibility there were just 2 silicone vacuum/boost lines that caught fire with the oil and the hood liner is a bit scorched as well as the expected darkened lower intake manifold.
So why the turbo oil feed failures all of a sudden? I have been running the same 115psi race oil pressure regulator for 5 years so I don't think it is just excessive pressure on stock piece.
Anyways I will run my own SS tube to AN ss hose oil feed now on my stock hybrid.
Good news is I got the rich bog mostly worked out of there. At 10psi boost my 720 and 1600 combo is hitting 64% duty cycle at 10.8:1 AF and at 13psi it was hitting 80% there.
The Wally 255 lph HP must be dropping pressure really bad or else that is some serious power (~360RWHP @ 10pis and ~450RWHP @13psi). I got a Bosch '044 ready to go in. It does spin the warmed 245 wide RA1 a bit through 2nd at 13psi boost wheelspin through 1st at 50% throttle short shifting at 5,000rpm
Fun fun, oh nooes on fire again- lol! 7s and fire I tell ya. Well 3rd time is the charm?
I got the fire out w/ my extinguisher.
I had replaced the original stock turbo oil feed line (short one on turbo) with a brand new factory one because the old one had started to leak a bit around where the tube meets the flange and I figured a new one would be good for another 20 years or so.
The brand new ond had ruptured at the same spot sending 2 streams of oil each as thick as a Super Soaker stream onto the turbo exhaust housing.
Luckily, since that area is isolated/cleaned up for relaibility there were just 2 silicone vacuum/boost lines that caught fire with the oil and the hood liner is a bit scorched as well as the expected darkened lower intake manifold.
So why the turbo oil feed failures all of a sudden? I have been running the same 115psi race oil pressure regulator for 5 years so I don't think it is just excessive pressure on stock piece.
Anyways I will run my own SS tube to AN ss hose oil feed now on my stock hybrid.
Good news is I got the rich bog mostly worked out of there. At 10psi boost my 720 and 1600 combo is hitting 64% duty cycle at 10.8:1 AF and at 13psi it was hitting 80% there.
The Wally 255 lph HP must be dropping pressure really bad or else that is some serious power (~360RWHP @ 10pis and ~450RWHP @13psi). I got a Bosch '044 ready to go in. It does spin the warmed 245 wide RA1 a bit through 2nd at 13psi boost wheelspin through 1st at 50% throttle short shifting at 5,000rpm
Fun fun, oh nooes on fire again- lol! 7s and fire I tell ya. Well 3rd time is the charm?
#3
Come by and I'll give you a used oil line to see if it does the same thing again!
Your welcome to any of the used parts I have and I think I have some extra new gaskets + factory cooper washers as well.
Your welcome to any of the used parts I have and I think I have some extra new gaskets + factory cooper washers as well.
#4
It is the short oil feed line that is leaking at the turbo. Both the leak have been where the tube is pressed into the little 2 bolt flange that bolts to the top of the turbo.
Thanks! But, errr no- don't want another failure and fire.
I could braze the stock oil line where the tube goes in as it looks like stock one is just pressed in and spot welded.
Come by and I'll give you a used oil line to see if it does the same thing again!
I could braze the stock oil line where the tube goes in as it looks like stock one is just pressed in and spot welded.
#7
Yep, I was thinking of braided SS line to SS tube when the original high mile one failed.
I was thinking it took away a bit from the stock hybrid nature, it involved a little work and a new stock one was only $20.
Live and learn or is it live and burn :P
Damn, how am I gonna get all that soot from the burning oil off my manifolds? damn soot! I wish it was a cute little Miyazaki soot...
I was thinking it took away a bit from the stock hybrid nature, it involved a little work and a new stock one was only $20.
Live and learn or is it live and burn :P
Damn, how am I gonna get all that soot from the burning oil off my manifolds? damn soot! I wish it was a cute little Miyazaki soot...
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