coldcaves

Not sure if this is the correct section for this question and hopefully it isn't too stupid (still waiting on my haynes manual to be delivered). This line from the air intake has been disconnected since I got my Jeep. Should I rig the line back together or replace it all together? Haven't had any issues starting up or idling or running it at all. Also would like to know the purpose of the line as well.

Any help would be appreciated, Thanks.

DFlintstone

Yea you are in the right place. (maybe an understatement!). That is going to make a mess. You might want to tape that vent from the valve cover to your air cleaner untill you replace it. I mean tape it so it is free to vent like it goes, don't cap it off, or oil will come out all over.

Click on the link in my signature and the Napa part # is there somewhere. Also check out Cruisers tips right on top.

That looks pretty clean for an 87. How meny miles?

Welcome to CF!

coldcaves

210k on the body and 90k on the engine. Original owner was a older lady who drove it up from Washington and traded it to the guy who I bought it from for some carpenter work and he just used it for a weekend beach vehicle. Virtually no rust and the interior is about as good as it gets for its age. I'm stoked since I picked it up. Thanks for the advice I'll do some reading!

coldcaves

I'm a little confused by this. Can you be a little more detailed I'm kinda confused on what this hose is supposed to do.

andrewmp6

Its part of the pcv system but on a jeep its called a ccv system.And yes you should hook it back up.

cruiser54

Renix Vacuum Harnesses

The vacuum harness that attaches to the front of the valve cover and includes the grommet/fitting, and is called the front harness, is Napa part number BK 715-1367

The vacuum harness that is closest to the air cleaner, EGR etc, and is called the rear harness, is Napa part number BK-715-1366.

The tube from the rear of the valve cover to the intake manifold is part number 715-1365 and comes with the valve cover grommet.



Revised 03-19-2014

md21722

You definitely want to fix it. Its allow unfiltered air into the valve cover/engine.

DFlintstone

In theory air, (and moisture and stuff), is sucked through the rear CCV orifice via intake manifold vacuum into the intake manifold. Then filtered air enters through that front tube to replace it. Closed Crankcase Ventilation. In reality, blow-by, past the piston rings blows out that front tube. It's importand that that is free to vent. If for some reason it can't, crankcase pressure will make the engine blow oil out everywhere, like the rear main and the front seal.

Nice pics Cruiser!

md21722

If the rear tube is clogged up or your engine has excessive blow by, then you are going to get more out the front tube. That tube, when connected to the air box, should not be putting oil on your air filter. If it does, then you have some other problem. The correct fix is not to leave it hanging.

coldcaves

Cruiser thanks for the details man. After doing some poking around and removing grime around where the harnesses meet it looks like the rear and front harness are both previously cracked/crumbling. Now I realized why he had it taped (which broke as y'all can see from my pics) and wired up. On the front harness side it looks like he hot glued it in place?!

I reconnected it as well as I could and taped it together and wired it in place it seems to be holding after taking it for a test drive and no oil where it shouldn't be that I can tell. Anyways got the parts on order at napa and should be here in a few days.

Thanks again for everyone's replies and help

cruiser54

With all 3 harnesses, you should be just fine.

JackJare9455

why is all of that mess necessary? lol... Renix...

I love Engineers!

67 GMC

Just for curiosity-What was NAPA's price for the two parts?

coldcaves

For parts 715-1366 and 715-1367 they were just over 30 bucks each. Didn't order or get a quote on 715-1365.