turbo lines (help) (pic inside) - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jamg · 10-13-2012, 11:43 PM

I'm having some trouble with the lines.

see attached picture.

left red circle- turbo oil feed line

right red circle- turbo oil drain line

Where are the turbo coolant lines?

what size is the turbo oil feed? I'm going to run custom fittings and lines, and i have found that the oil feed line requires a 3an fitting.... but the problem is, my turbo uses a M10x1.25 mm to -4AN Turbo oil Feed Adapter fitting with 1.5mm Restrictor

so- the 4an will have to connect to the oil feed on the block, which i found to be a 3AN.

can anyone verify?

and help me find the coolant lines...

jamg · 10-14-2012, 04:06 PM

can anyone please help me?

Broadfield · 10-14-2012, 04:26 PM

You can see both of the turbo coolant ports in this pic of my old SR setup. The one on the water neck just has the red male fitting sticking out. Then you can see the one on the block just below the head.

jamg · 10-14-2012, 08:44 PM

in the picture- the line on the top right-

is that the coolant drain for the turbo?

how did yours bend like that? how did you get a fitting to fit on the end?

so the fitting below the water neck is the coolant feed port?

i had no idea. what fitting did you use? my feed port is a 4an fitting, so i suppose a ___NPT to 4an fitting?

Fries · 10-14-2012, 08:53 PM

Its the type of line. I could be wrong, but it looks like your coolant line is blocked.

jamg · 10-14-2012, 08:54 PM

ok so there is no port below the water neck... lol so it's not my turbo coolant feed.

where the hell is it?

jamg · 10-14-2012, 08:56 PM

blue 1- knock sensor

blue 2- there is a bolt that is on the block, is this my coolant feed?

blue 3- coolant drain for my turbo

is this right?

TheRealSy90 · 10-14-2012, 10:52 PM

NO NO NO NO.

In that last picture.

1. Oil Feed.
2. Nothing.
3. CATCH CAN Return.
Red circle to left of mount bracket = Coolant return.
Red circle to right of mount = Oil return.

Coolant feed will come from either your water neck or from a line behind the head depending if it's S14 or S13 line setup.

jamg · 10-14-2012, 11:13 PM

i thought oil feed was left red circle? there is reside of oil in the threads.

catch can return, got it.

there's a little bolt on the water neck, is it that?

how can blue #2 be nothing? there's bolt in it, with some gasket maker...

TheRealSy90 · 10-14-2012, 11:49 PM

Ok your right if there's oil residue in there that's your oil feed. The bolt on the water neck is a bleeder bolt.

BlacknboostedS13 · 10-15-2012, 12:23 AM

#1 in your pic is coolant feed, red circle directly below that is oil feed. Your coolant return is on the back side of the block, it taps into the heater core lines. Your coolant feed is plugged like someone ran a top mounted turbo, therefore they might have deleted your coolant return line.

jamg · 10-15-2012, 12:37 AM

Quote:

Originally Posted by BlacknboostedS13

#1 in your pic is coolant feed, red circle directly below that is oil feed. Your coolant return is on the back side of the block, it taps into the heater core lines. Your coolant feed is plugged like someone ran a top mounted turbo, therefore they might have deleted your coolant return line.

what would blue #2 be?

TheRealSy90 · 10-15-2012, 01:26 AM

I believe it's normally plugged. I know mine is.

10-14-2012, 04:26 PM	#3
Broadfield Zilvia.net Advertiser Join Date: Oct 2006 Location: Normal, IL Age: 51 Posts: 2,946 Trader Rating: (163) Feedback Score: 163 reviews	You can see both of the turbo coolant ports in this pic of my old SR setup. The one on the water neck just has the red male fitting sticking out. Then you can see the one on the block just below the head. __________________ Follow Along For My Latest Work My Portfolio Please Share Check Out My Builds

10-14-2012, 08:53 PM	#5
Fries Zilvia FREAK! Join Date: May 2007 Location: Texas/or/Afghanistan Age: 37 Posts: 1,514 Trader Rating: (3) Feedback Score: 3 reviews	Its the type of line. I could be wrong, but it looks like your coolant line is blocked. __________________

10-14-2012, 04:06 PM	#2
jamg Nissanaholic! Join Date: May 2009 Location: GA Posts: 2,106 Trader Rating: (7) Feedback Score: 7 reviews	can anyone please help me?

10-14-2012, 08:44 PM	#4
jamg Nissanaholic! Join Date: May 2009 Location: GA Posts: 2,106 Trader Rating: (7) Feedback Score: 7 reviews	in the picture- the line on the top right- is that the coolant drain for the turbo? how did yours bend like that? how did you get a fitting to fit on the end? so the fitting below the water neck is the coolant feed port? i had no idea. what fitting did you use? my feed port is a 4an fitting, so i suppose a ___NPT to 4an fitting?

10-14-2012, 08:54 PM	#6
jamg Nissanaholic! Join Date: May 2009 Location: GA Posts: 2,106 Trader Rating: (7) Feedback Score: 7 reviews	ok so there is no port below the water neck... lol so it's not my turbo coolant feed. where the hell is it?

10-14-2012, 11:13 PM	#9
jamg Nissanaholic! Join Date: May 2009 Location: GA Posts: 2,106 Trader Rating: (7) Feedback Score: 7 reviews	i thought oil feed was left red circle? there is reside of oil in the threads. catch can return, got it. there's a little bolt on the water neck, is it that? how can blue #2 be nothing? there's bolt in it, with some gasket maker...

10-15-2012, 12:23 AM	#11
BlacknboostedS13 Leaky Injector Join Date: Oct 2010 Location: Titusville, FL Posts: 74 Trader Rating: (2) Feedback Score: 2 reviews	#1 in your pic is coolant feed, red circle directly below that is oil feed. Your coolant return is on the back side of the block, it taps into the heater core lines. Your coolant feed is plugged like someone ran a top mounted turbo, therefore they might have deleted your coolant return line.