niacal4nia

Beware of the tiny round valve inside the fuel bolt when you take it off. Mine came out and dropped inside the engine and I got lucky using a magnet to fish it out. I used the one screw method in order to have the car running so I would save on a flatbed tow ,but then found out it was as good as 2 screws.

It looks like my 2002. I would unscrew the fuel bolt to give more room. Very little fuel will come out that you could catch with a rag. Any way if you can't figure how to do with 2 screws, then go with the one left screw as I did. Take the support off the body pannel and slided half way in on the tank with a help of a friend and position the left screw align with hole with a flash light and 10mm long extenstion tool, once you got it tight , then slide the tank all the way in and connect all the hoses and other stuff. The left engine mount is easy as long as you have 2 jacks , one to lift the rear and one to support the engine. the left motor mount screw is below the round metal cover straight down just lower it about 2" on the engine support.

Install the black support bracket on the tank and have a friend hold the tank half way in the support so you have enough room to do the left outer screw using a flash light, then slide the tank all the way in. You don't need two screws. My tank is holding by one screw and has been working fine with no movement or tilt and still level. I'm not sure if it will slide in without droping the engine using the left motor mount, but if you got the tank in, then I think it's OK. I have no Idea how Porsche does it with 2 screws on the support but $800 for labor, I went with for the one screw support.

I just replaced the coolant tank on a 2002 996 C2 which has no fuel lines connected like the 1999 DIY photo, only has one fuel bolt, However I did remove left rear motor mount and placed a jack under the engine ( the rectangle part) to support and drop the engine to give me more room about 2". Once I disconnected the hoses and and got the, sensors and air pump out of the way, I pulled the tank out and broke the tank support( black plastic thing on top that the tank that slides in) Got a used support from a junkyard in LA for $15 including shipping new cost $28. Took me about 2 hous to get the tank out. There was no freaking way to get the new tank in with the tank support on top. I tried tilting the 10-20 degree counter-clockwise still no luck so I unscrewed the 2 screws on the tank support using a 10mm sucket and got the support out of the way, pushed the tank in and then slided to the right toward the engine, slided the support on the tank, now I have enough room to screw the left screw on the support but no room for the right screw. I slided the tank to the left inside the support and finished the job. The support is holding the tank with only one screw and you cant tell, no wiggle or movement. Car has been running great. I'm sure there was a reason Porsche used 2 screws, I think the support has a bad design, If Porsche could make a cavity so the screws on the support could be tighten withouT removing the tank. BTW I got a brand new tank on ebay for $115 including shipping using my ebay 10% coupon. So as Frank Sinatra once said: " I did it my way" Sorry guys English is my 2nd language.