Drilling a NA block for turbo oil drain.

[Chambers]

Hi all, I plan to drill and tap a hole in the NA block for a turbo oil drain, in the stock drain location is there anything on the other side that I have to worry about when drilling this hole?

Also, is there anything I should be changing like oil dip stick?

I don't have the engine on the stand, so I cant pop the pan off and check my self yet.

Thanks.

 

[IJ.]

You DON'T drill straight in......

The hole needs to go in a short distance and intersect with another hole drilled from the bottom of the block.

 

[empera]

cant he just weld on a bung or tap the pan?

 

[Chambers]

You DON'T drill straight in......

The hole needs to go in a short distance and intersect with another hole drilled from the bottom of the block.

Ahh, I see, that could have gotten ugly pretty quickly. About the second hole, is the spot to drill evident enough to see it right on? Thanks.

cant he just weld on a bung or tap the pan?

I could do that, but I do not want to run the chance of choking up the drain when turning, I drive my car on a lot of curvy back roads. Thanks.

 

[Clip]

whats the hole covered up right under the oil filter? when i was rebuilding mine it was a small blockoff plate with 7m stamped into it, didn't know if i could use this as an oil drain.

 

[Chambers]

That hole is under pressure, to my understanding it is for a oil cooler exclusive to the Australian NA Supra.

 

[Clip]

That hole is under pressure, to my understanding it is for a oil cooler exclusive to the Australian NA Supra.

makes sense, gets hot down under when you drill your block for your oil drain would you mind posting pics? i've been itching to do an na-t but just getting started collecting some information.

 

[Chambers]

Yea, I will be posting in my build thread. Good luck.

 

[s383mmber1]

Weld a bung on the oil pan for the return, and tap the OP sending unit with a T fitting for the feed. Its much easier and i had NO problems with my old set up what so ever

 

[IJ.]

Ahh, I see, that could have gotten ugly pretty quickly. About the second hole, is the spot to drill evident enough to see it right on? Thanks.



I could do that, but I do not want to run the chance of choking up the drain when turning, I drive my car on a lot of curvy back roads. Thanks.

Yes there is a huge pad cast inot the bottom of the block for the return, I'm not a big fan of using the pan as it's too low for my liking.

The return can't be in line with any of the Con Rods either as they will hamper the drain.

[thumb]http://ij.supramania.com/assembly000.jpg[/thumb]

 

[Chambers]

Oooo, I see, thank you!

 

[IJ.]

Welcome