so many little hoses - 986 Forum - The Community for Porsche Boxster & Cayman Owners

kiyakubuke · 03-31-2015, 06:28 PM

was cleaning the engine today and noticed a loose hose. it doesn't have vacuum that I can tell. not sure where it is suppose to connect.

it seems to run from under the resonance tube boot on the right (white arrow) to an area near the AOS (red arrow).

it connects to a Y (blue arrow), which connects to a component mounted to the engine. the other end of the Y (red arrow) has a piece of similar hose that is not connected to anything. I'm guess it should be.
Anyone know where it is suppose to connect?

Redboxs · 03-31-2015, 07:15 PM

I have no idea where your ninja hose goes. But I have to say that is beautiful.. so clean, brings a tear to my eye. Bravo

78F350 · 03-31-2015, 08:02 PM

Here's the picture that eventually gets posted in these "Where does this one go?" threads:

I think the 'Y' that you are looking at is (G) in the diagram - Some have a 3-way split (manual transmission), some 4-way (Tiptronic).
***I'm pretty sure the original source of the image is the PelicanParts tech articles, but not positive.***

..and here's what happens when you put a Boxster in the garage, cover it, and put a box on top:

The bigger the box, the more cats will appear.

I hope one of those pictures helps. :dance:

KRAM36 · 04-01-2015, 01:35 AM

That's the wrong picture for your car, that picture is for Tiptronic transmission cars. I believe it goes to a change-over valve, #18 in this diagram.

See this thread and Jager's explanation of how he fixes it, post #17.

Why don't My Secondary Air Injection Components Look Like This?

Gelbster · 04-01-2015, 11:44 AM

I am struggling with the same issue.There are several diagrams floating around and some mention of upgrades and changes to 3-way connectors. Few of the diagrams match photos to show exactly where things connect into the flex sleeves on the intake. It is a great opportunity for someone to do the definitive DIY Project Guide!

kiyakubuke · 04-03-2015, 11:41 AM

Quote:

Originally Posted by KRAM36

That's the wrong picture for your car, that picture is for Tiptronic transmission cars. I believe it goes to a change-over valve, #18 in this diagram.

See this thread and Jager's explanation of how he fixes it, post #17.

Why don't My Secondary Air Injection Components Look Like This?

that is the diagram I see everywhere, however mine is different.

the first Y connector connect to the vacuum reserve canister, then to a second Y connector. the second one connects to the change over valve (I think) and to the boot on the resonance tube. another line runs from the change over valve to a vacuum solenoid on the resonance tube.
the 3rd connection on the 1st Y is the one that is not connected to anything and I cannot tell where it should go. I have spent hours searching online and looking at the engine trying to see if there is any other connection with a hose.
I would think that this was just a previous owner or mechanics "fix" for a broken line or something. but I have run across one other post where a guy had a similar setup. the post was from 2009 and I tried to reach out to him but I don't think he is still active.

KRAM36 · 04-03-2015, 03:33 PM

The change-over valve, #18 in the diagram is there, you just can't see it. That's where that connection should go to. I agree, the previous owner did a hack job. It's not easy to get to that change-over valve, so he just left it unattached.

madmodz · 04-15-2015, 09:56 PM

Just found that same hose loose today. I remembered reading about it here. Thank God for the forum!!!!

kiyakubuke · 04-16-2015, 08:22 AM

Quote:

Originally Posted by madmodz

Just found that same hose loose today. I remembered reading about it here. Thank God for the forum!!!!

did you figure out where it goes?
I have to replace the oil filler tube and pipe as soon as my parts come in. I also ordered some of that tubing. Hoping I can see the layout better once I get the intakes off.

madmodz · 04-17-2015, 01:11 AM

Not yet, I was going to remove the manifolds to paint them. Found a broken engine mount so another thing to conquer.

Mark_T · 04-17-2015, 11:40 AM

Quote:

Originally Posted by 78F350

..and here's what happens when you put a Boxster in the garage, cover it, and put a box on top:

The bigger the box, the more cats will appear.

Not a word, Timco, not a word. Just STFU and walk away....

kiyakubuke · 04-19-2015, 06:26 AM

received the oil filler tube, oil filler pipe and vacuum hoses for the secondary air system from Pelican today. I also ordered a o-ring for the pipe, but it was delayed. didn't want to wait so I ran down to the Porsche dealer and got one.
Not seeing much on the forum or anywhere else online about replacing the oil filler pipe, so I will try to document as much as I can. I think the main issue is getting to it. everything I have read says you have to take off the intake manifold.
We are expecting rain all next week so I won't be tempted to rush the job to get it back on the road

. Plan to take my time, make sure it is done right as well as fixing the previous owners patchwork on the SAS.
if anyone has done this before and/or removed the intake manifold. be happy for any advice or tips.

kiyakubuke · 04-20-2015, 07:43 AM

so I was able to get the oil filler tube off without taking off the intake. once you take off the resonance tube you can easily access the one bolt. the second one (under the alternator) is more difficult. I used a flexible extension to get it most of the way up, once it gets to a certain point, the extension won't work because there is no longer enough clearance (the back mount of the alternator blocks it). from that point I used a crowsfoot wrench to slowly work it the rest of the way and a magnetic pick up to grab it.
That being said, not sure getting that bolt back in will be very easy. however, it seems to me that removing the alternator would be a better option than removing the intake.

hopefully when I remove the alternator I will be able to see where the mystery vacuum hose goes.

kiyakubuke · 04-21-2015, 05:53 PM

so, I was picking up my wife Mercedes from our Mechanic. which happens to be the same place I bought my boxster and they have done work on it as well. so I took the opportunity to ask the head tech about my secondary air injection system being different than any diagrams I can find. he says, "well the 911 engines have different SAI systems". I'm like, "yeah, so what's that have to do with anything?". he sort of looked puzzled for a second and said, "well, your car has a 911 engine, you didn't know that?"
no, no I did not. "oh, I thought you knew that when you bought it. yeah, the previous owner replaced a blown engine with a 911 with about 10K miles on it."
so now that I have this little piece of info, a lot of things are clear, like, how these F%*%&#* hoses are connected

Reebuck1 · 04-21-2015, 06:55 PM

Interesting!!! Now that you know you have a 996 motor you may want to do a re-flash of your DME with ROW. That would allow you to remove a good portion of those vacuum hoses. If you have a Durametric you will have to get it reworked to be able to get all your readings again. Just a thought....

tommy583 · 04-21-2015, 07:52 PM

Quote:

Originally Posted by kiyakubuke

so, I was picking up my wife Mercedes from our Mechanic. which happens to be the same place I bought my boxster and they have done work on it as well. so I took the opportunity to ask the head tech about my secondary air injection system being different than any diagrams I can find. he says, "well the 911 engines have different SAI systems". I'm like, "yeah, so what's that have to do with anything?". he sort of looked puzzled for a second and said, "well, your car has a 911 engine, you didn't know that?"
no, no I did not. "oh, I thought you knew that when you bought it. yeah, the previous owner replaced a blown engine with a 911 with about 10K miles on it."
so now that I have this little piece of info, a lot of things are clear, like, how these F%*%&#* hoses are connected

Well now that you said that, I see your oil cooler has a 996 part number on it.

bobs_boxster · 04-24-2015, 09:34 PM

Can I ask how you went about cleaning your engine? I can't see sticking my power washer in the back but would like to have my engine look better. Thx

kiyakubuke · 04-25-2015, 06:04 PM

Quote:

Originally Posted by bobs_boxster

Can I ask how you went about cleaning your engine? I can't see sticking my power washer in the back but would like to have my engine look better. Thx

with the top in service mode, I use plastic and making tape to block off the interior. then sprayed it down with simple green and let it sit for about 15 minutes. then hosed it off. the shine comes from gunk engine bright.