Turbo Oil return line thread problem help!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Boosted240Guy · 08-31-2008, 03:39 PM

Hey everyone look I have a problem and I need some help. If your gonna flame or bash don't even bother cuz it's not worth it. I Take really good care of my 240 it's my pride and joy.....anyway recently I took out the stock exhaust manifold and replaced it with an aftermarket one...being that all the bolts on the back of turbine to manifold are so hard to reach I took out the whole thing turbo and all. everything went great putting it all back in except for the oil return line. I am pretty positive that the hole for the banjo bolt on the block is stripped!! everytime I try and get it in it just pops out. I tried to rethread it and that didn't work...any suggestions help?? cuz I know that this is a pretty big problem and I am about to throw in the towel! any help is greatly appreciated!

Massimo Power · 08-31-2008, 09:04 PM

you are either going to have to change all the hardware to a higher size and rethread it to that pitch n so on.

or you can use a heli-coil but im not sure how it would hold up..

good luck

projectRDM · 09-01-2008, 08:47 AM

The hole in the block is oil supply, not return. It's high pressure so unless you retap and seal with a proper fitting it will leak.

BlackTruenoAE86 · 09-01-2008, 10:18 AM

yeah, the oil return is the one that is under the turbo and goes toward the oil pan.

clark · 09-01-2008, 10:28 AM

Quote:

Originally Posted by Boosted240Guy

Hey everyone look I have a problem and I need some help. If your gonna flame or bash don't even bother cuz it's not worth it. I Take really good care of my 240 it's my pride and joy.....anyway recently I took out the stock exhaust manifold and replaced it with an aftermarket one...being that all the bolts on the back of turbine to manifold are so hard to reach I took out the whole thing turbo and all. everything went great putting it all back in except for the oil return line. I am pretty positive that the hole for the banjo bolt on the block is stripped!! everytime I try and get it in it just pops out. I tried to rethread it and that didn't work...any suggestions help?? cuz I know that this is a pretty big problem and I am about to throw in the towel! any help is greatly appreciated!

i just went through the SAME exact problem with my sr20. stripped the block. steel bolt, aluminum block, steel wins!

So i used the advice i found on this very forum. TIME-SERT!

i just purcahsed the thread repair kit.
NEW TIME-SERT M12 X 1.25 Metric Thread Repair Kit

the thread is M12x1.25 for that oil line. so what you do is drill out the hole, thread it to be a step larger, and then thread in the insert and viola, the insert ist he original size of the thread and it's better than new. make sure you use red loc-tite on the threads when you use the insert.

this is the best option, and i have co mpleted this and it's not leaking and works great!!

Boosted240Guy · 09-01-2008, 12:00 PM

Hey thanks a lot guys for the help. So Clark how long did this process take you...was it a quick fix??

08-31-2008, 03:39 PM	#1
Boosted240Guy Join Date: Oct 2007 Location: Colorado Age: 33 Posts: 21 Trader Rating: (0) Feedback Score: 0 reviews	Turbo Oil return line thread problem help!! Hey everyone look I have a problem and I need some help. If your gonna flame or bash don't even bother cuz it's not worth it. I Take really good care of my 240 it's my pride and joy.....anyway recently I took out the stock exhaust manifold and replaced it with an aftermarket one...being that all the bolts on the back of turbine to manifold are so hard to reach I took out the whole thing turbo and all. everything went great putting it all back in except for the oil return line. I am pretty positive that the hole for the banjo bolt on the block is stripped!! everytime I try and get it in it just pops out. I tried to rethread it and that didn't work...any suggestions help?? cuz I know that this is a pretty big problem and I am about to throw in the towel! any help is greatly appreciated!

08-31-2008, 09:04 PM	#2
Massimo Power Zilvia Junkie Join Date: Jul 2008 Location: Corona, CA Posts: 322 Trader Rating: (8) Feedback Score: 8 reviews	you are either going to have to change all the hardware to a higher size and rethread it to that pitch n so on. or you can use a heli-coil but im not sure how it would hold up.. good luck __________________ www.massimopower.com PH: 1(951)402-5386 EM:[email protected] Special Thanks To: www.aeperformance.com www.domospeed.com/blog For Their Continued Support

09-01-2008, 08:47 AM	#3
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 47 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	The hole in the block is oil supply, not return. It's high pressure so unless you retap and seal with a proper fitting it will leak. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

09-01-2008, 10:18 AM	#4
BlackTruenoAE86 Zilvia Member Join Date: Jul 2006 Location: San Antonio, TX Age: 32 Posts: 150 Trader Rating: (2) Feedback Score: 2 reviews	yeah, the oil return is the one that is under the turbo and goes toward the oil pan. __________________ -Emilio

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09-01-2008, 12:00 PM	#6
Boosted240Guy Join Date: Oct 2007 Location: Colorado Age: 33 Posts: 21 Trader Rating: (0) Feedback Score: 0 reviews	Hey thanks a lot guys for the help. So Clark how long did this process take you...was it a quick fix??