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-   -   Removing complete CIS setup (http://forums.pelicanparts.com/porsche-911-technical-forum/742038-removing-complete-cis-setup.html)

prebordao 03-31-2013 09:54 AM

How to remove complete CIS setup ?
 
After taking a good look and some measures, I was wondering if it is possible to remove the CIS setup as a whole without even doing a partial drop.
By complete i mean airbox, fd, throttle body and headers.
I think it will fit between fan shroud and top of engine opening.
Any experiences ?

prebordao 03-31-2013 11:26 AM

Bump

Nostril Cheese 03-31-2013 11:49 AM

I'ts just easier to drop the engine. Seriously.

spuggy 03-31-2013 12:05 PM

Quote:

Originally Posted by prebordao (Post 7360962)
After taking a good look and some measures, I was wondering if it is possible to remove the CIS setup as a whole without even doing a partial drop.
By complete i mean airbox, fd, throttle body and headers.
I think it will fit between fan shroud and top of engine opening.
Any experiences ?

Chap in this thread said it was pretty easy to remove CIS without even a partial drop on his '74: http://forums.pelicanparts.com/porsche-911-technical-forum/717648-finding-cis-vacuum-leaks-vacuum-cleaner-pressure-test.html

I doubt it gets easier on later cars - and no idea what year you have.

prebordao 03-31-2013 01:18 PM

I have a 74
And limited facilities. That's why even the partial drop isnt easy.

timmy2 03-31-2013 02:32 PM

I did it on my '78, you may need to take some pieces off as you go but it can be done.

boyt911sc 03-31-2013 03:39 PM

CIS removal.........
 
Quote:

Originally Posted by spuggy (Post 7361143)
Chap in this thread said it was pretty easy to remove CIS without even a partial drop on his '74: http://forums.pelicanparts.com/porsche-911-technical-forum/717648-finding-cis-vacuum-leaks-vacuum-cleaner-pressure-test.html

I doubt it gets easier on later cars - and no idea what year you have.



Spuggy,

You could remove the whole CIS unit in situ, or partial, or complete engine drop. There is no right or wrong procedure. It is a choice. I've done it different ways and I prefer doing with the engine out.

Read Thomas adventure trying to locate the illusive air leak/s in his engine and how long he has been battling to fix it. I like to remove the engine and run the motor before putting it back in the car. The time and effort involve is much less than doing the troubleshooting with the engine in the car.

One advantage of running the engine on a test stand is the complete access to the engine, easy to spot air, oil, and fuel leak.

Tony

James Brown 03-31-2013 03:42 PM

did it on a 81 not so bad, you plan on putting it back on?

Norm Faustino 03-31-2013 04:45 PM

I took mine out completely before I did my engine drop. I didn't know what the hell I was doing either. You know what they say... Ignorance is bliss. LOL:D

dipso 03-31-2013 04:46 PM

Removed mine and put carbs on, without dropping the engine at all.

prebordao 03-31-2013 11:49 PM

Leak finding is the purpose.

theiceman 04-01-2013 02:26 AM

I did it on my 78 for the first time in about 45 minutes. I undid the ba k engine mounts and dropped it 2 inches just to make it easier.

For 2 bolts and a jack and about 5 minutes why wouldnt you.

porwolf 04-01-2013 09:54 AM

Quote:

Originally Posted by theiceman (Post 7361938)
I did it on my 78 for the first time in about 45 minutes. I undid the ba k engine mounts and dropped it 2 inches just to make it easier.

For 2 bolts and a jack and about 5 minutes why wouldnt you.

Sounds interesting. Could you describe in some more detail exactly what you had to do for the 2 inch engine drop? What had to be disconnected if anything?


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