Ca18det oil vacuum/return thing?

Discuss topics related to the CA18DE and CA18DET series engines.
Sil4Tea
Posts: 4
Joined: Mon Jan 04, 2016 8:48 pm
Car: 1991 Nissan 240sx HB (Sil front)
2004 Honda S2000 (Daily)

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So I'm nearing the end of my chassis swap. I had the CA18 running and driving in my last car and decided it was time for a new chassis. I'm down to the last bits and pieces but I'm stumped..
On top of the oil filter there's a 90 degree tube that I feel is important. Where does this connect to? I have looked in many other forums but can't find anything but some pictures, not a whole lot of info. Any help would be happily appreciated. Pictures down below in comments.


Sil4Tea
Posts: 4
Joined: Mon Jan 04, 2016 8:48 pm
Car: 1991 Nissan 240sx HB (Sil front)
2004 Honda S2000 (Daily)

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My personal picture dont mind the grime, has been cleaned up since the picture has been taken. Picture came out upside down too :rotfl
Image

Picture from the internet, seems to connect to that second tube to the left of it but mine doesnt have, i beleive the pic is on an N/A FWD CA18 but im not too sure on that. Regardless i have looked under and around my intake and havent found anything close..
Image

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float_6969
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Joined: Mon Aug 26, 2002 1:55 pm
Car: CA18DET swapped 1995 Nissan 240sx (too many mods to list)
2015 SV Leaf w/QC & Bose (daily)
Location: Topeka, Kansas
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That's correct. That tube on the left should connect to the 90° fitting on top of the oil filter. It's an odd size, reducing diameter straight hose. Ultimately it ends up connecting to the back of the intake side valve cover.

Sil4Tea
Posts: 4
Joined: Mon Jan 04, 2016 8:48 pm
Car: 1991 Nissan 240sx HB (Sil front)
2004 Honda S2000 (Daily)

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float_6969 wrote:That's correct. That tube on the left should connect to the 90° fitting on top of the oil filter. It's an odd size, reducing diameter straight hose. Ultimately it ends up connecting to the back of the intake side valve cover.
Hmmmm... I'm going to look closer today but like mentioned, I dont have the straight tube to the left. It's just a 90 degree bend. Would you by chance know exactly where that straight piece begins? I've looked around the mani and haven't found anything, will look again in some daylight.

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float_6969
Moderator
Posts: 19853
Joined: Mon Aug 26, 2002 1:55 pm
Car: CA18DET swapped 1995 Nissan 240sx (too many mods to list)
2015 SV Leaf w/QC & Bose (daily)
Location: Topeka, Kansas
Contact:

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Where what straight piece begins?


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