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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHCooling System Confusion on Install
Leading reported evidence
Disconnect end of the hose connects
Performed · outcome unconfirmed
No successful repair reported for this finding.
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0
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Performed · outcome unconfirmed · Original poster
So what I'm still trying to figure out is where that disconnected end of the hose connects.
Leading evidence: 'Disconnect end of the hose connects' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check engine case serial number' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Performed · outcome unconfirmed · Original poster
Pictures are hard to find, but I did see one that looked like a plate was installed there instead of port.
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Suggestion
Check your engine case serial number on the driver side just above the sump plate.
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Suggestion
Most likely not but you should double check since coolant routing is critical.
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Suggestion · Original poster
I found the disconnected hose lying under the intakes behind the carburetor...when I had the engine out I must have just thought it was going to connect to something on the body and didn't pay attention to it.
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Suggestion · Original poster
The one search for 99610625055 did say to use 996-106-850-05-M100 which happens to be the replacement hose I bought to fix the cobbled together hoses and does not fit connect to this plate.
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So I had a bad Tiptronic on 2001 996 911 Carrera and I pulled the engine and trans out of car. Dropped the Tip off for rebuild and then I went to work on engine:
- IMS
- RMS
- AOS
- Plugs
- Fix Vacuum Routing
- Fix Coolant System Hoses
The coolant hoses were "frankensteined" together due to a break in a plastic junction of an expensive hose. Instead of replacing the hose, several step down/up fittings were used to connect everything together. So I bought the new hose with the 4 outlets and hooked everything together only to find that I had a left over port coming out of the engine just beneath the alternator.
I cannot find where this port should connect. I'm wondering if it is something that used on the GT3 version and it got cobbled into this configuration or if there is another hose that should be connected to it. I cannot pull any part numbers from it. Pictures are hard to find, but I did see one that looked like a plate was installed there instead of port.
The picture with the purple ink is the mystery part. I used ink to try and pull part numbers. Any ideas/help are most welcome.
Even if someone can peak in their engine and look underneath the alternator and see if that mounting piece is just a cover or if it has a hose fitting. This is for a 2001 911 996 Cabriolet with Tiptronic (automatic) transmission. Thanks
I don't have access to my car right now but I just pulled up a parts diagram at Auto Atlanta. Yes it has a pipe fitting on all M96 engines.
See part #12 here:
http://www.autoatlanta.com/porsche-p...section=101-05
Thanks! I was having a hard time finding a clear diagram. Now I have to figure out why my routing is foobar. Beginning to think I got the wrong replacement hose.
OK, that's it! I'm assuming the red circle on the oil pump cover is for another reason.
So what I'm still trying to figure out is where that disconnected end of the hose connects. It looks like it should go to the water pump but the replacement hose I have (see picture below) already connects to the water pump (blue arrow).
Yes it is. The picture was borrowed from another thread that discussed accidentally removing the oil pressure relief valve instead of the drain plug.
It was just the best photo I could find quickly that clearly showed a hose connected to the plate referenced by the OP.
I pulled the part number(s) for the coolant hose that goes to the mystery plate. There are 5 part numbers for the hose depending on the year of the car.
99610625053
99610625054 (aka 99610624351)
99610625055 (aka 99610624352)
I went to pelican parts and searched for all 5, and in each case it came back with a message that said
"Note: We can't confirm this part will fit your Porsche 996 (1999-2005)"
Evidently, I'm not the only one confused in this area. The one search for 99610625055 did say to use 996-106-850-05-M100 which happens to be the replacement hose I bought to fix the cobbled together hoses and does not fit connect to this plate.
I'm thinking of just capping off the outlet (or inlet) on that plate.
Does anyone understand the cooling system well enough to comment on whether this would be an ok idea?
Of course it is not okay. That is obviously a major coolant passage for the left bank of the engine. I doubt if the engine would last thirty minutes without it!
See if this tech article at Pelican helps you.
http://www.pelicanparts.com/techarti...eplacement.htm
Do you have the split connector in this photo hooked up?
Back on your original post that picture showed the hose dangling...any idea if that is the natural location for the hose, or could it actual go upwards and it was just loosened so it dangled? I'm asking because that hose in the picture hangs well below the engine (as does mine) when hooked up that way. It also would not plug into a splitter connection (easily) that you have identified in the latest picture.
My fear is that it hooks into a pipe or hose up on top of the engine and that I may have pushed that hose/pipe out of the way when I was working on the engine. Before I go through the hassle of disconnecting everything and lowering the engine/trans, I am hoping to figure out where that hose goes.
Beezlebob, you may have been right all along. I just went back to Auto Atlanta and brought up a picture of the plate. On a M96.04 engine the plate does not look like that. It has a smaller hose that goes of the right side of the plate. Don't know if yours was cobbled or has something to do with other mods but it does look like it is wrong for your engine. That said, are you sure your car has the original engine?
Phew, at least it's not a Boxster engne
Don't know why the plate appears to be wrong then. You may want to check with the dealer with your VIN and see what the correct part looks like. A typical 996 has that plate with a small barb coming out on the right side that connects to that easy to break barb connector on the right side of the alternator right below the throttle body. The only thing I'm not sure is if the tiptronic requires a different plate. Most likely not but you should double check since coolant routing is critical.
OK, thanks, will do. Any recommendations on dealers with a good service department that knows their stuff?
Also, maybe someone with the same car (2001 911 996 Carrera Cabriolet Tiptronic) will stumble across this thread and confirm the configuration as well.
Check with Sunset Porsche. According to autoatlanta, there's only one plate for 2001 996 (part #12
here
) p/n 99710102100
The barb from that plate supplies coolant to the AOS (red) then the return from AOS is the hose marked in yellow, which merges to a tee (green).
Ahsai, you are my new superhero. You have solved the riddle. I have the return line (yellow) hooked up but not the one you showed in red. I found the disconnected hose lying under the intakes behind the carburetor...when I had the engine out I must have just thought it was going to connect to something on the body and didn't pay attention to it. And that "easy to break" part is indeed broken, but I can see where it mounts.
Now my big decision is whether to use step down connectors to go from the wrong plate I now have and connect to the AOS line, or whether to buy a $400 plate with the correct mount.
And Tharbin and others, thanks for your help as well!
I would try looking for a used part.
The original cover for your 3.4 seems to be 9961012159R.
Search for that part number and "porsche 996 bracket fluid pass through" on ebay. There's a store called "qualityporscheparts" that has sold some before (currently out of stock). I also saw a similar cover for 997 but not sure if that will fit correctly.
OK, thanks. I've looked around a little and sent a few emails to salvage places. Right now on eBay there's several covers like the one I now have, and they're cheap...probably why someone replaced it with that version...argh!
