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Braided oil feed line touching turbo hotside.. bad??

Old Apr 2, 2005 | 12:38 AM
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Braided oil feed line touching turbo hotside.. bad??

ok, so i drove an hour into traffic today to get the oil feed line hose made and i measured 1 feet of hose to be enough... well, i didnt take into consideration that near the end of the hose, its not as flexable... so, i need to loop it around the other side and the stainless line hits the hotside for about an inch then the manifold and downpipe (but the downpipe is wrapped).... my question is, is that bad??? i know the oil will be hot but will it rip the line?? or cause it to wear very soon??? will it be ok or not???

Thanks!

Last edited by rzograbian; Apr 2, 2005 at 12:50 AM.
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Old Apr 2, 2005 | 03:15 AM
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Roman,

I would replace it. It seems likely that being in contact with the super-hot turbine housing would destroy the hose (the stuff on the inside, most likely -- burned rubber or melted teflon).

-Max
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Old Apr 2, 2005 | 03:25 AM
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Originally Posted by maxcooper
Roman,

I would replace it. It seems likely that being in contact with the super-hot turbine housing would destroy the hose (the stuff on the inside, most likely -- burned rubber or melted teflon).

-Max


uh... i was afraid of that!! so looks like i have an 1 foot oil feed line brand new for sale.... $15... haha....
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Old Apr 2, 2005 | 03:26 AM
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oh,what i was wondering is if it will be ok for a month or two?? until after the tuning???

Thanks!
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Old Apr 2, 2005 | 05:20 AM
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Put some kind of heat barrier between the hose and the housing. I've got some fiberglass stuff that would work. They used to sell fiberglass mat at the auto parts store for body repair -- that would probably work. Or perhaps one of those muffler bandage thingies would do the trick, too. If you have another piece of larger-diameter braided hose, you could use that, too (slit the side of the spare piece and put it between the good hose and the housing). I would replace it eventually for sure, but I am concerned that it might burn through rather quickly if it's touching the turbine housing. It would suck to kill the turbo for something so silly.

-Max
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Old Apr 2, 2005 | 07:52 AM
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Originally Posted by rzograbian
ok, so i drove an hour into traffic today to get the oil feed line hose made and i measured 1 feet of hose to be enough... well, i didnt take into consideration that near the end of the hose, its not as flexable... so, i need to loop it around the other side and the stainless line hits the hotside for about an inch then the manifold and downpipe (but the downpipe is wrapped).... my question is, is that bad??? i know the oil will be hot but will it rip the line?? or cause it to wear very soon??? will it be ok or not???

Thanks!
The vibrations of the engine and vehicle will cause the stainless steel braided line to act as a saw and cut through whatever it touches. If the contact surface is hard, then the line itself will also wear away. Stainless steel braided line should not touch ANYTHING except for rubber grommets that can better absorb the vibration and are easily replaced.

AC65-9A gives a good overview of how to run lines.
http://store.yahoo.com/aviator/phandbooks.html

Were it me, I would buy an angled AN fitting and run the line as originally planned.

Last edited by Evil Aviator; Apr 2, 2005 at 07:54 AM.
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Old Apr 2, 2005 | 09:00 AM
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do yourself a big favor and do not compound your error.

if the stainless line is in actual contact w the turbine housing the nylon tubing inside the line will rupture. 60 pounds of oil pressure onto an 800 degree turbine housing will not be pretty. neither is losing oil pressure re your motor.. if you have a vise and a hacksaw it is easy to make your own line.

do fix it immediately please.

howard coleman
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Old Apr 2, 2005 | 12:57 PM
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Fixed!! thanks!!

oh, but if its still near it but not touching it, its ok right??? its like 1.5 inches away in the air.. ThankS!
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Old Apr 2, 2005 | 02:54 PM
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Originally Posted by rzograbian
Fixed!! thanks!!

oh, but if its still near it but not touching it, its ok right??? its like 1.5 inches away in the air.. ThankS!
Yeah, 1.5 inches is fine. I'm glad you fixed it.

-Max
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Old Apr 4, 2005 | 11:34 AM
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I have the same problem, about 1 inch away, but I plan on wrapping it with exhaust wrap soon. Is this ok?
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Old Apr 4, 2005 | 12:17 PM
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ok, from what i gather, its not... some kind of wrapping should work but its not permanent... ive ran my line in such a way now that it really doesnt touch but gets a little close...
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