Full-Race Henry

Alright guys, my friend is having problems and he's killing me. He just got a new mani and a used turbo. The turbo he got was working fine on another car at 4psi, when the turbo was taken off, there wasnt anything wrong with it. well he put the turbo on with his new manifold. he is using a 1/4" oil feed and a 3/4" oil return. anyways, after everything was done he started his car and everything was fine. but the more he drove it, the more it started to smoke. now its smoking like no other. he took the turbo off and the compressor side was filled with oil. It drips

The turbo ran perfect on the previous car at 4psi. Now the turbo is running at 8 psi on his stock b16 and its blowing smoke and has a lot of oil in the compressor side. What do you guys think? Ive never heard of the compressor side to be filled with oil.

TIA

ATS*Mark

seal is shot , time for a rebuild

Full-Race Henry

but it was fine before. how did the seal blow?

Full-Race Henry

up

s o h c

bad oil return line???

Full-Race Henry

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by g unit &raquo;</TD></TR><TR><TD CLASS="quote">bad oil return line???</TD></TR></TABLE>

already checked it. its perfect.

Full-Race Henry

ttt

Sprockets

iTrader: (6)

Be more specific about your oil feed and return. I assume you're talking about the outside diameter (1/4" feed, 3/4" return)? I guess that would be -3AN and -10AN? Either the feed line is too large (not so if it's -3AN), the drain is too small (maybe try -12AN), kinked, too close to being horizontal to allow gravity to drain into the oil pan, the fitting on the oil pan is too low, or the seals are bad.

Full-Race Henry

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by The Dude &raquo;</TD></TR><TR><TD CLASS="quote">Be more specific about your oil feed and return. I assume you're talking about the outside diameter (1/4" feed, 3/4" return)? I guess that would be -3AN and -10AN? Either the feed line is too large (not so if it's -3AN), the drain is too small (maybe try -12AN), kinked, too close to being horizontal to allow gravity to drain into the oil pan, the fitting on the oil pan is too low, or the seals are bad.</TD></TR></TABLE>

im just tellin you what he told me he has. he said 1/4" feed and a 3/4" return. he was told a -4an is like 3/16" and -10 is like 5/8" its not kinked. but i dont see how the seals are bad. it was only run for a few hours.

Full-Race Javier

what flanges is he using? feed and return? what oil pressure? what does the feed line look like?

Full-Race Henry

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by javierb14 &raquo;</TD></TR><TR><TD CLASS="quote">what flanges is he using? feed and return? what oil pressure? what does the feed line look like?</TD></TR></TABLE>

he got the flanges made, dunno what oil pressure, and ill take some pics in the next few days.

tegasaurus

this guy shoiuld've never turboed his car... problem solved henry... you know much better than this, couldn't you have looked over his stuff first?

Full-Race Henry

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tegasaurus &raquo;</TD></TR><TR><TD CLASS="quote">this guy shoiuld've never turboed his car... problem solved henry... you know much better than this, couldn't you have looked over his stuff first? </TD></TR></TABLE>
His car was turboed to begin with and i thought that he knew what he was doing. Plus I didnt want to waste my time .

89dxhunchback

Its prob. getting too much oil presure, a needle valve will solve the problem. I've heard a story of this happening and after the oiling problem was solved, the turbo didn't smoke anymore, but that just a story...

UNDER PRESSURE

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EF8_Fan &raquo;</TD></TR><TR><TD CLASS="quote">
His car was turboed to begin with and i thought that he knew what he was doing. Plus I didnt want to waste my time .</TD></TR></TABLE>

So that's how you get rid of your buddies huh henry? I think the seal is shot as well. You never know 4psi could make a difference maybe that's why the other guy was just running 4psi?

Full-Race Henry

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 89dxhunchback &raquo;</TD></TR><TR><TD CLASS="quote">Its prob. getting too much oil presure, a needle valve will solve the problem. I've heard a story of this happening and after the oiling problem was solved, the turbo didn't smoke anymore, but that just a story...</TD></TR></TABLE>
whats a needle valve???

Full-Race Javier

tell him to try this before making assumptions.

nissans use them all the time to lower oil pressure going to a t25/t28 CHRA.....thats why i asked how much pressure he is running.

i dont sell these.....you can find them here
oil line restrictors, they are made of 6061 Aluminum and feature a 1/8th NPT (M) end with a 1/8th NPT (F) input, with a .060" restriction.

http://www.sr20forum.com/showt...35577

Full-Race Henry

can you buy these locally??

racinskittle

Make sure the turbo is clocked correctly.

BROOD

Some things I can think of to check:
Excessive crankcase pressure??
Is the turbo center section clocked correctly??
Is the oil return drain on the pan below the oil level line??
Sharp angle fittings or restrictive fittings on the drain line??

I really don't think the feed and drain line sizes are the root cause in this situation.

stierhund

has nothing to do with the oil lines coming into the turbo, its the C rings on both sides where the blades exit the housing...

what weight oil is he running?

thicker oil will help make it stop, and be good for a turbo setup as far as the block goes unless its really great oil

if he is running thinner oil then thats the reason it started doing it out of nowhere, but if its not the C rings then there may be a problem with the center shafts that house inside sweat bearings, could be greatly worn and thinner oil seeps through them