1978 911SC Targa project need help
 

I bought my first Porsche, its a 1978 Targa, Talbot yellow, 151xxx miles with AC and sport seats. The car came from Phoenix so it has no rust but the interior is in sad shape. Paint is good enough for now but will need a respray.
The car has been sitting for 10 years in a garage. The previous owner had it running 10 years ago. The piston in the fuel distributer was stuck so he had to shut it down. The PO removed the 6 fuel lines and the line to the wur. He cut the three lines on the back of the distributer to remove the distributer. The fuel line, return line and CSV line. Not sure how I am going to replace those lines with the motor in the car.
So far I have removed the fuel tank which had a lot of varnish in it. Next I plan on cranking the motor over to build up oil pressure and do a compression check. Then dump the oil and replace it with a known quantity. 9 quarts.
Should I send in the distributer to get rebuilt? The car has a new fuel pump and filter
Thanks

I would pull spark plugs and lube cylinders, then try rocking it over by hand first

Does anyone have a 3.0 engine removed from the car that I could get some pics on the back side of the fuel distributer?

Hope these help.

http://forums.pelicanparts.com/uploa...1546109529.JPG

http://forums.pelicanparts.com/uploa...1546109529.JPG

http://forums.pelicanparts.com/uploa...1546109529.JPG

http://forums.pelicanparts.com/uploa...1546109529.JPG

http://forums.pelicanparts.com/uploa...1546109529.JPG

The back of the engine really is a nest. No wonder my PO cut a hole in the firewall to get access....

here is another back picture '80 3.0
 

-can get you more tomorrow if you need some

http://forums.pelicanparts.com/uploa...1546123736.jpg

Thanks everybody for the pics. My 3.0 is a 1978. I think it is plumbed a little different than an 1980. Thanks again

here are some pisc of 1978 K-jetro, hope it helps (i am in process of changing carbs back to original k-jetro :)

http://forums.pelicanparts.com/uploa...1546650987.jpg
http://forums.pelicanparts.com/uploa...1546650987.jpg
http://forums.pelicanparts.com/uploa...1546650987.jpg
http://forums.pelicanparts.com/uploa...1546650987.jpg
http://forums.pelicanparts.com/uploa...1546650987.jpg
http://forums.pelicanparts.com/uploa...1546650987.jpg

Though it seems like a lot of work, pulling the engine and trans is prett6 easy and 5hen everything is much more accessible.

Can we see some pics?? If the car hasn't run in 10 years and the last owner cut through the back seat to get to CIS and the car needs a respray maybe you should just pull motor and do a resto now.
I see you have a gmc motorhome those things are nice wanna sell it??
I have a bunch of CIS systems laying around let me know if you need anything. Good luck.

Thanks for the post. Hate to pull the motor out that starts a slippery slope. I removed the 3 cut fuel lines today. Have one more small cut line that I cannot get too. It goes to the base of the throttle body I think. The three lines I removed are from the fuel acc. to the fuel dist. The fuel return line and a small hose that goes to the cold start valve. Would you have any thoughts where the small line from the base of the throttle goes to. I have three ports on my fuel dist. and four lines. I have seen return lines with two ends, one to the cold start and one to the return line back to the tank. Not sure if that is correct for my car.
How did you know I had a GMC, sold it about 10 years ago. Have a Rialta now.
I was based in Plattsburgh when I was in the Air Force. I was there 4 years, really enjoyed my time there.
Thanks for your time. John Noterman

John,
-just because you pull the motor doesn't mean you have to do a full resto (I know I shouldn't talk though)

-only took me three hours to pull mine

-then you can get at everything, just a suggestion

-didn't know you were Air Force, thank you for your service!

Steve

hi John,
not sure which line you talking about... can you post picture of this line, where it connects..

This is a supply line which goes from fuel distributor and splits with small line which goes to Cold Start Valve in the back of the air box

http://forums.pelicanparts.com/uploa...1546738169.jpg

Fuel lines to FD........
 

John,

I have been following this thread since the very beginning allowing you to get the information you need. Unfortunately, you have not gotten the information you need. There are four (4) fuel lines going to the backside of your FD. They are:
1). Fuel line from fuel filter to main delivery port of the FD.
2). A second smaller diameter fuel line branches out from the main delivery line. See picture above. This goes to the CSV below throttle body.
3). The main return line going back to the gas tank.
4). A smaller diameter fuel line (same size as the one for the CSV) is the WUR’s return line connected to the rear right most port.

Contact Len Cummings (aka BoxsterGT) for your fuel lines need. Unless you have experience in making these high pressure fuel lines, I don’t recommend you make them. But is very easy to get tempted to save a few bucks. Leave the fuel lines to the experienced fabricator/s with proven success. Keep us posted.

Tony

Three things-

1) Listen to Tony. He's knowledgeable and generous and persistent. He will see you all the way through to a successful conclusion.

2. As others have said, pulling the engine really is the best, easiest way to see what's going on and makes it possible to fix it right. I'm the one with the hole in my back seat- you don't want to go that way, and you don't want to try to fix the rat's nest blind.

3. I was stationed at Plattsburgh in the late eighties. When were you there?

Thanks everyone for the help. I plan on messaging Tony today. I was at Plattsburgh from 1972 to 1976. Flew tankers. Thanks again John

Another option would be to remove the CIS off the engine.
From there I think the hoses can be plumed, and assessed.

I did this to get at the oil leaks at the top of the engine. Some people have claimed to do this in Guinness book time (not me). Everyone said dropping the engine was easier and it likely is with the following caveats:

A.) You need the space for the engine when it's down (not for me)
B.) Install of engine is a two person job and I did not have the help


Getting the CIS off was a challenge with the engine in, but it can be done.
The right tools are a near must for removing the 6 intake runners. 1/4" sockets (metric of course with built in swivels 10 mm I think) are the ticket! And be careful about the throttle return spring on runner number 2, mine flew off a long way and it was days before I found it behind the shock tower, nested into some dilapidated sound proofing.

There are other hints and steps which can be mentioned if you go this route.

I lost a clip off one of my electrical connections in the back of the CIS (there are two on a '78) and it ended up in the intake! Luckily, I searched all my runners with a magnet looking for something else and found it!

Late to the party but here's my 81.

http://forums.pelicanparts.com/uploa...1546796278.jpg

What, did you guys in Japan get gold-plated CIS lines on SCs? You guys paint everything gold over there.:D

Seriously, pull the engine. Years and years in Phoenix means that ALL fuel lines MUST be replaced. Contact Len (BoxsterGT) for info.

You are going to have to pull the engine probably anyhow, as I hate to be the Reaper of Bad News on this - but you probably have bad head studs - so the lines will have to wait while you sort this.

Totally different reference picture.......
 

Bob,

Nice picture. Unfortunately, the OP needs a good picture of the fuel lines from the back side of the FD-031 with plastic fuel lines. The one in your picture is FD-077 with metal fuel lines. FD-031 is for ‘78-‘79 SC USA and FD-077 is for ‘80-‘’83 SC USA with lambda/OXS. They are totally different fuel distributors.

I sent a picture to John N. earlier because I could not attach the picture (too large). I don’t know how to downsize the picture. Would you be able to attach it for me? Please advise. Thanks.

Tony