Turbo drain bulkhead
Turbo drain bulkhead Need to get 2 10an turbo drain bulkheads to put in the from of my pan. What brand is everyone using? Ideally I would weld them in but to be able to get to the pan good I would have to pull the motor and don't want to do that now
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Joined: Nov 2003
Posts: 13,616
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From: Norn Iron
If you cannot weld them in.....to install a bulkhead you would need to remove the pan to get the nut behind the fitting after drilling ?
Some will likely just use a male to male NPT to AN adaptor so you can screw it into the pan rather than requiring a nut.
Some will likely just use a male to male NPT to AN adaptor so you can screw it into the pan rather than requiring a nut.
If you cant rem the pan, and cant get to it to weld, the only choice is like an AN 10 to 1/2" pipe, drill and tap the hole-if you pack the drill with grease, you will get some shavings out, but not all, so some may get in the pump.
Maybe look for an external pump, pump the oil from the drain to a valve cover or something.
Maybe look for an external pump, pump the oil from the drain to a valve cover or something.
You know, the BorgWarner engineers ripped me a new @$$hole for using -10AN lines when they found out.
They were very specific instruction for me to use -12 only. Which is so weird because you see everyone using -10AN.
Well guess what. My -10AN leaks on both ends, and so do several of my friends cars with -10AN drains. The engineers blame the hose as a restriction. They say the oil is pooling in the turbine. I found a company selling a mild steel bendable -12AN tube I just purchased that will allow the use of a simple clamp and cooler hose, which is apparently Ideal and "OEM like". The receptor fitting is about $7 in ebay, a weld in -12AN size for the pan. ALWAYS weld the return fitting to the pan; it isn't worth the risk of drilling/tapping unless you have a very secure, stable location to do so.
They were very specific instruction for me to use -12 only. Which is so weird because you see everyone using -10AN.
Well guess what. My -10AN leaks on both ends, and so do several of my friends cars with -10AN drains. The engineers blame the hose as a restriction. They say the oil is pooling in the turbine. I found a company selling a mild steel bendable -12AN tube I just purchased that will allow the use of a simple clamp and cooler hose, which is apparently Ideal and "OEM like". The receptor fitting is about $7 in ebay, a weld in -12AN size for the pan. ALWAYS weld the return fitting to the pan; it isn't worth the risk of drilling/tapping unless you have a very secure, stable location to do so.
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Of course I believe the engineers but I find it so hard to understand how that little pinhole of oil orifice for the turbo oil feed inlet requires a -10AN, much less a -12AN drain. My PT7675 had a poor angle linear with my hotside setup, so I resorted to a Turbowerx pump. I ever briefly tried it as a gravity drain but the oil smoke it huffed out made it abundantly clear that was not an option.
While I don't relish doing it, I've found from experience, I'd rather pull the oil pan/timing cover , weld in the bungs, wherever they're required and be done with it. No filings to deal with, no leaks and no doubts. I've done it for multiple engines in my 96 Z28 over the years. I know it's not always practical either from the standpoint of mechanical background, facilities (gravel driveway/no garage) or expense. Been there, hadn't been able to do that.
I am grateful for the great benefit/guidance all you great gents have provided here. For sure, as the saying goes, "I've stood on the shoulders of giants" in getting to the wide enjoyment I've had with my original owner 96 Z28.
While I don't relish doing it, I've found from experience, I'd rather pull the oil pan/timing cover , weld in the bungs, wherever they're required and be done with it. No filings to deal with, no leaks and no doubts. I've done it for multiple engines in my 96 Z28 over the years. I know it's not always practical either from the standpoint of mechanical background, facilities (gravel driveway/no garage) or expense. Been there, hadn't been able to do that.
I am grateful for the great benefit/guidance all you great gents have provided here. For sure, as the saying goes, "I've stood on the shoulders of giants" in getting to the wide enjoyment I've had with my original owner 96 Z28.
I used a 10 on my borg no problem, but I guess if enough bends, etc it could be a problem-I suspect pressure in the crankcase could be more of a problem. I was always amazed at the tiny hole in the return of a fuel pres. reg. and some calling an 8 a rest, lol.
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
Although a term like -10 is still a little vague as depending on hose type or fittings used....actual size of the hole inside can vary quite a bit.
But yes as long as there is a good gravity drain then most typical -10 hoses will be perfectly fine...the former being the most important part.