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Compression test 240 all across ...but

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Old 07-26-2004, 10:21 AM
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Default Compression test 240 all across ...but

i am still getting oil from my wastegate dump tube
whats my problem
my turbo has no shaft play runs good , but oil coming from my wg dump tube
Old 07-26-2004, 10:25 AM
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Default Re: Compression test 240 all across ...but (GReddy SI)

the seals in your turbo. You need to replace them and put a pressure reducer in your feed line.

*I was thinking downpipe...would that be the same diagnosis?*
Old 07-26-2004, 10:26 AM
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Default Re: Compression test 240 all across ...but (-TRINiTRON-)

why put a pressure reducer in my feed line , am i getting too much oil in my turbo? the old feed line i had was bigger than the new one i just put in
Old 07-26-2004, 10:55 AM
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Default Re: Compression test 240 all across ...but (GReddy SI)

most turbos only wanna see between 45-60 psi. Under boost your turbo probably sees 75+ at WOT.
Old 07-26-2004, 11:09 AM
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Default Re: Compression test 240 all across ...but (GReddy SI)

bump for anymore ideas on what it can be
Old 07-26-2004, 11:47 AM
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Default Re: Compression test 240 all across ...but (GReddy SI)

^^^
Old 07-26-2004, 11:59 AM
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Default Re: Compression test 240 all across ...but (GReddy SI)

external wastegate? What kind of manifold? I have trouble visioning how oil is traveling up against the exhaust flow and out your wastegate. (assuming it's mounted on the manifold before the turbo...
Old 07-26-2004, 12:14 PM
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Default Re: Compression test 240 all across ...but (dennis)

i have a t3/t4 turbo inlinepro manifold tial 35wg
with stans feed and return lines
i didnt have this problem before until now
that i took of teh turbo and put in a new feed line
Old 07-26-2004, 12:19 PM
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if there is oil in your dumptube your motor should be smoking. the same exhaust gas that passes thru the dumptube passes thru your exhaust also. it is extremely hard to diagnose the source tho with the provided info
Old 07-26-2004, 12:38 PM
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Old 07-26-2004, 12:42 PM
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what are u trying to show???
Old 07-26-2004, 12:51 PM
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Default Re: (99B16Si)


here is what my new feed line looks like
i couldnt put a 90degree apatper there cuz i couldnt move the turbo so i can put it in there
Old 07-26-2004, 12:52 PM
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Default Re: (99B16Si)

is not youre feed or any lines for that matter if its coming out of your wastegate. its not the turbo seals either, like stated before it must be comming out of your engine, maybe valve seals or something.

Landon
Old 07-26-2004, 01:01 PM
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Default Re: (boosted_dc2)

maybe , i am running open downpipe right now
can that cuz the valves to get bad?
Old 07-26-2004, 01:36 PM
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it could be the oil rings as well couldn't it? Cyphear's car is blowing smoke out the exhaust and thats the only thing we can figure out. (Note: Car ran fine before, then blew motor. Changed bottom ends and now smokes.)
Old 07-26-2004, 01:44 PM
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Default Re: (tegmech)

do a leak down test to be completely sure your motor isnt the issue.
Old 07-26-2004, 02:37 PM
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Default Re: Compression test 240 all across ...but (-TRINiTRON-)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">most turbos only wanna see between 45-60 psi. Under boost your turbo probably sees 75+ at WOT</TD></TR></TABLE>

Kidding? That much pressure inside the turbo and it will be leaking oil like a seive. The point is to make the feed constrictive enough and the drain line large enough so that there is almost no oil pressure inside the turbo.
Old 07-26-2004, 07:22 PM
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Default Re: Compression test 240 all across ...but (beepy)

bump, anymore ideas what it can be
Old 07-26-2004, 07:33 PM
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Default Re: Compression test 240 all across ...but (GReddy SI)

Sounds like an oil return problem.
Old 07-26-2004, 07:40 PM
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Default Re: Compression test 240 all across ...but (GReddy SI)

take off your exhaust mani and let the engine run see if oil sputters out the exhaust. But plug up your feed line. If nothing then work your way towards the other conponents.
Old 07-26-2004, 07:45 PM
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Default Re: Compression test 240 all across ...but (svmnredracr)

ok i will do that tomorrow
Old 07-26-2004, 07:47 PM
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Default Re: Compression test 240 all across ...but (svmnredracr)

doing that will that harm anything?&gt;

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by svmnredracr &raquo;</TD></TR><TR><TD CLASS="quote">take off your exhaust mani and let the engine run see if oil sputters out the exhaust. But plug up your feed line. If nothing then work your way towards the other conponents.</TD></TR></TABLE>
Old 07-27-2004, 05:57 AM
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Default Re: Compression test 240 all across ...but (GReddy SI)

bump could i do that take off manifold and turn the car on ,
Old 07-27-2004, 12:49 PM
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Default Re: Compression test 240 all across ...but (GReddy SI)

bump
Old 07-27-2004, 12:51 PM
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Default Re: Compression test 240 all across ...but (GReddy SI)

You won't hurt anything but your ears.

The myth that running open header or without an exhaust can fry exhaust valves was only true in older engines with sodium-filled valves.
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