First Tuning 911sc after I bought it
 

Hi all, I just bought my first 911 SC, I am going to do a tuning replacing the old stuff to make it work better
I had bought timing chains, 6 spark plugs, foot pads, air filter, oil filter, A/C belt, alternator belt, wipers, and some more accessories. Do you think that I forgot anything?:confused:
Another question, to change the timing chain is possible do it without dropping off the motor?
Thanx guys
SmileWavy

Replacing the timing chains is a major process, requires removing the engine, taking it half apart, and setting lots of parameters back to spec. It is not like a "normal" car where it can be done with the engine in place over a few hours.

OK, thanks, I will wait for an engine problem to change the timing chains. Any more suggest?
cheers

fuel filter, fuel accumulator, cap and rotor.

+1 on the fuel filter. I also have a new (to me) '74 911. I replaced all my vacuum lines and fuel injector seals; that was like an instant tuneup. I'm in the process of replacing my fuel lines. All of my hoses were in good shape but I'm changing them for good measure & safety. This way, I will know for sure, hold old my fuel lines are.

I'm also changing the gear oil in my transmission.

Vern

Hi,
Also make sure your car has the later Carrera type camchain tensioners fitted.
Good luck with it.:)
Anthony.

Additional tools.......
 

Mawa,

Add to your list:

1. Valve feeler gauge (edited).
2. Inductive timing light.
3. Fuel injection pressure gauge kit.
4. Pop off valve ( if you don't have one installed).
5. Valve cover gaskets and hardwares.
6. And many more......

Tony

Edited: Thanks Greg for the correcttion.

Thanks guys, I think that after this changes my pocket is completely empty hahaha
Cheers. ;)

It's a must to change all the injector o rings big plus on power and response

I am sorry for my stupid question, but, how many fuel injectors has the 911 SC?

6 fuel injectors (one for each cylinder). The injectors just pull out by hand and there is a rubber seal on the end of it. Very easy to change.

However, there is also an injector sleve that is pressed into the intake manifolds. These are a little more difficult to remove and replace as you usually need to remove the intakes to get to them. These are plastic sleeves that also have a small rubber seal on the ends of them. Once you remove them, the new ones are very easy to install. I did mine, which included removing the intakes and replacing the rubber intake sleves and intake gaskets and the whole project took about 2 hours.

Vern

Thanks, Tidybuoy!
I will try soon!right now I will like it, but I have not a lot money to do it, hehe
Cheers

Alvaro

If the car has been sitting the best thing you can do is pull the fuel distributor and soak in a good solvent cleaner. Then blow out all the gunk and dried fuel. Ultrasonic bath is also good. Then do the same with the 6 injectors. This does not cost much (cleaning supplies) but will allow you to properly set the mixture. Dried fuel and varnish are the worst things for CIS components.

Once the FD is baselined you can move to ignition. Replace all the wear parts. Cap, rotor, plugs and verify that the wires are within Ohmic spec. Of not, replace.

Now you can move on to getting the car to run properly. This means verify control pressure, set mixture and timing.

You will be rewarded with a great running car after the time and effort.

First question.
Has the car been sitting a long time or did you buy it from some one who has been driving it ?
Don't start going nuts untill you really know what you need.
A cap ,rotor,fuel filter,spark plugs,belts,brake pads are ok to change but don't start doing things like seals and taking fuel distributor out if you don't have to and if you have never done it before.
If you are inexperianced it's best just to do some small things for now and drive the car,learn about it and enjoy it or you may just end up causing more problems

I think you meant "valve feeler" gauge and I completely agree. He should get one specifically designed for tight spaces.

hi lonewolf, I am new in all this, so I am starting and I will keep going learning time to time.
I just bought it and it was sitting for 1 or year at least... I drove 500 miles one day, and next week I have to drive other 600 miles. when I arrive to my place I will change all that things, and in some more months I check if I need I will make my hand dirty with the injection, gaskets, and valve fellers, but reading a lot tutorials before. Thaks for your opinion, I think the same way, other wise, I could break something.

Thaks everyone for that nice task list!
Cheers

ok, So you have drivin it 500 miles already, If the car starts up ok ,idles, runs good and pulls good when you drive it then I would leave everything for now . changing the cap,rotor,air and fuel filters will not hurt anything and only improve things although you may find that the parts are all good and don't need to be changed for a while. Point is changing them won't hurt anything.
You've come to the right place. All the info you need is here and if you have any questions just ask.
Have fun and enjoy the drive