Turbo oil return line pan studs vs bolts/crush washer

[CORNF3DECLIPSE]

Redoing my oil pan from the previous owners bad rtv job. Wanna know your thoughts on reversing the bolts on the Turbo drain line fitting to essentially make it studded. I think if I use allen screws it could seal better with zero leaks. Thoughts? Check pics

 

[Vegas Smith]

The key, in my opinion, to not having a turbo drain leak is to not have a turbo at all. JK, make sure you use the bolt seals and you should never have a leak:

https://stmtuned.com/collections/1g...ucts/oem-4g63-oil-return-line-bolt-gasket-kit

 

[Kryndon]

Plenty of ways to go about this. I would be hesitant to do it your way however. Having the bolt from inside the pan is always risky no matter how small of a risk. Sure it may just unscrew itself magically and fall down into the sump, but in the smallest of odds it could just fly up and you know what happens then. Edit: Even if you leave the bolts threaded from inside, you'd need 1 nut and 1 washer per bolt on the other side. Oil could still find its way through the threads, unless you put RTV on the bolts or just weld them from the inside.

Out of necessity on mine, I made my own gasket out of gasket material, and applied a thin film of black RTV between the oilpan and gasket itself. I also added a bit on each bolt. It's messy, but it sealed up nicely for quite awhile.

That said, if I had easy access to that $10 kit that Vegas Smith linked, I'd definitely go with that, as it was meant to be. Just my 2c

 

[blktalon3]

Not to mention if you ever had to clean a gasket off with the studs sticking out would be a pain

 

[92AWDHX40]

I just used the washers and oem bolts for it.

 

[FIBA M - EC17PSE]

If you want studs then use proper grub screws, this way you can always remove them later on,

The way you have it now when you go to do them up you will undoing the inner bolt and will never get best sealing. Stick to external bolts or as i said above, use grub screws and nut

 

[brian9397gsx]

I've always just used the OEM gasket and flange head bolts with a light coat of rtv under the bolt heads never had an issue.

 

[dexterholland04]

I always welded a -10an fitting to the oil pan. It's hard to leak when there aren't any gaskets. Otherwise, use the correct gasket and new stock bolts with the o-ringed washers they come with.

 

[curt-s]

thats best, followed by an -AN adapter you just bolt in once.
Of course, either or means you need a new drain line but it gives me piece of mind to know that flex portion will never crack because it does not exist.