What to use for oil return line

[Mcmuscle3]

What do you guys use for an oil return line? Doesn't it need to be synthetic oil proof? I can't find much on this.

 

[Boost Demon]

What turbo? For an MHI turbo upgrade, the stock line works fine in most cases with a little Ultra grey/black RTV (an oil resistant one) and the stock gaskets.

 

[1G Eclipse94928]

EXTREME PSI : Your #1 Source for In Stock Performance Parts

 

[Mcmuscle3]

Hx35

 

[My1GLaser]

I went to a local industrial supply and got 1ft of 3/4" ID silicone hose for $10. I cut it to fit and hose clamped it to the ends of the fittings on the turbo and oil pan. Plain rubber hose won't last long!!!

I used a 2g oil return for the pan and cut it to leave 1.25" of pipe. I'm not positive what I used for the turbo side. I think I welded the other end of the 2g return to a flange I fabbed to fit the turbo oil outlet...

 

[Blurred Talon]

I've been running push lock line for years with no issues.

 

[Boost Demon]

[ame=http://www.youtube.com/watch?v=RLCEHDG49Lo]Holset Oil Drain - The Right Way in HD - YouTube[/ame]

 

[Mcmuscle3]

thanks, I pretty much all i need is to find a good rubber hose to use for the piece in between the fittings. Something that wont melt, or chemicals wont erode.

 

[JusMX141]

Silicone hose.

Just make sure there are no extreme bends in the hose which can cause a kink. As a rule of thumb, make all necessary bends with the fittings and use a section of hose on the straight.

For reference, there's a giant thread on various members' oil drain setups used on Holset and Garrett turbos with photos: http://www.dsmtuners.com/forums/tur...turbo-users-your-oil-drain-may-too-small.html

 

[dsmspick]

There is hose out there that is safe to use with oil, high temps, and pressure (not to worried about pressure but it's included). I use Aeroquip hose brand it is a black hose safe to use for oil and high temps. Gates also makes similar hose for oil, high temp, and pressure.

 

[JusMX141]

What turbo? For an MHI turbo upgrade, the stock line works fine in most cases with a little Ultra grey/black RTV (an oil resistant one) and the stock gaskets.

NO RTV on drain gaskets, EVER. Use the gaskets dry or put copper spray on them if needed to help them to seal better. Otherwise, this happens:

http://www.dsmtuners.com/forums/tur...uys-lay-off-excess-rtv-oil-drain-flanges.html

 

[Justin_l_]

Just because some people can't use RTV doesn't mean it everybody isn't capable of using it.

 

[steve]

Just because some people can't use RTV doesn't mean it everybody isn't capable of using it.

I think you have it backward, there might be some people that can use it correctly but too many seem to think it's magic glue.

You don't need RTV to get the drain to seal. The factory gasket and crush washers have worked fine for 23 years for me.

 

[JusMX141]

Just because some people can't use RTV doesn't mean it everybody isn't capable of using it.

You'd be surprised of how the vast majority MIS-uses the product. In fact, it's probably the most misused automotive products on the market.

Just a few days ago, an Evo III 16G I rebuilt for a customer came in with RTV all over the oil inlet fitting which the owner had apparently used to either stop a minor leak or prevent the fitting from leaking. You guessed it- some of the RTV made it's way into the compressor-side journal and blocked off the oil supply entirely, causing the turbo to fail.

In this case the RTV was used to substitute the lack of a copper sealing washer...so it was grossly misused.