a question for JFP regarding a 911 (997)

[Gilles]

I had been maintaining a 2007 911 Carrera S convertible with automatic transmission, for a family member for several years, now the car has 50k and I would be doing some heavy maintenance and I need some advise..

1) complete brake system
2) Water pump and thermostat
3) Spark plugs and coil packs
4) Coolant tank replacement
5) AOS replacement, will all new (accordeon) hoses.

Regarding #1, #2 and #3 are no issues as these are fairly simple

For #4, I was planning to lower the engine about 2" to have enough room to remove the coolant tank.

However, #5 is where I am questioning myself about the steps to follow, as I watched a DIY video by FCP Euro and iy does not look like a fun job..

I have never put the convertible top in the "service position" to have access to the top of the engine, does someone know if the 911 has a also rear access engine cover (by removing the "rear seats" like the Boxter and Cayman?

After watching the FCP Euro video I am wondering if may be better off by lowering the engine and transmission together a few inches, to have better access and do all the things (engine related) at the same time?

I don't have access to a lift, but I have a QuickJack and jack stands and a Harbor Freight 'lift table' that I used to lower the engine/gearbox on my previous 987CS

What plan would you recommend? Thank you in advance!

PS: I replaced twice the AOS and accordeon hoses on the Cayman 987CS but never on a convertible (911 or Boxter)
.

[JFP in PA]

Both the coolant tank and the AOS are a bit of fun on a 911 variant. There is no real access thru the rear bulkhead, everything needs to be done either from under the engine cover or beneath the car. Yes, you will need to lower the engine a bit to do the coolant tank, it also makes the AOS a bit easier as well.

Don't overthink the process, your Quick jack and lift table should work fine. Work methodically and double check everything is back and tight before you put it back up.

[Gilles]

Originally Posted by JFP in PA

Both the coolant tank and the AOS are a bit of fun on a 911 variant. There is no real access thru the rear bulkhead, everything needs to be done either from under the engine cover or beneath the car.

Thank you JFP!

The FCP Euro DIY, also mention that by removing the coolant tank, you will have a better access to the AOS, therefore both will be replaced at the same time.

I saw that you need to remove both sides of the intake runners but the air conditioning compressor can be left alone, is this correct?

Thank you in advance for sharing your expertise!

Regards.

[JFP in PA]

You don't usually need to do anything with the AC.............

[Gilles]

Originally Posted by JFP in PA

You don't usually need to do anything with the AC.............

Happy to hear this :-) Thank you!

[Deserion]

If you’re going through the trouble, may as well go with the Ultimate AOS (which also allows one to run more oil). Makes PCV changes in the future a snap as well.

https://lnengineering.com/products/parts-and-upgrades-for-porsche-boxster-cayman-and-911-engines/the-uaos-ultimate-aos/the-porsche-996-997-ultimate-aos-uaos-al-complete-kit.html

[Gilles]

Originally Posted by Deserion

If you’re going through the trouble, may as well go with the Ultimate AOS (which also allows one to run more oil). Makes PCV changes in the future a snap as well.

Deserion, thank you for the link!

It even cost less than the OEM AOS with the connecting hoses..