I'm pretty sure the other nipple goes to oil, but every diagram I find seems to lead off into nowhere, can someone tell me where its supposed to go? Thanks!

 

Yes, oil fill neck.

Dan

 

One of those lines on the primary intake elbow runs to the oil filter neck, the other runs up for the oil injection nozzles on the rotor housings.

 

The one you have in red goes goes to vent your oil filler neck.

Look at the diagram from where you lifted that - it is the small hose that comes up (don't confuse with the big one for the PCV).

 

ok thanks! So it goes to the oil filler neck, but what is its purpose?

I'm in the middle of doing a non-sequential mod so I'm just looking at which lines I should be keeping.

 

Crankcase ventilation.

 

so does that mean I need to include a pcv valve? (and if yes, which direction?)

 

No. You can remove the valve and block the line to the UIM. Then just use the line which routes to the primary intake elbow.

 

Better question should be .... do I need it?



that's my dilema. I either JBweld the nipple back on, or JBweld the hole shut and hook up the remaining nipple to the oil injectors ...

 

Or you could try and find that part used.

I've been researching the same thing lately. I've been trying to find where that red hose comes up and connects to the oil filler neck.

I already have one line going from the oil filler neck to my catch can. The opening for the PCV on the UIM is blocked off. But I haven't been able to find the vac line that is supposed to join that red crankcase ventilation to the oil filler neck.

 

You need to vent the crankcase somehow. How you do it, is up to you. There are several ways people do it if you search around the forum.