3.0 will not start
 

Well I got my first 911 Friday. It had some bad tires so I ordered them and put them on yesterday. Went for a drive, 14 miles in the engine stalls or bogged at a light. I got it so start then it pops spits and sputters. The engine is a 82 3.0 with webbers. I thought trash in carb after putting in full tank of fuel. I get it home it sits all night. I try to crank at 10am today and it will not fire up. Any ideas where to begin? I have an order in for a porsche service manual so I may get it by Friday.

Do the obvious first. Check for spark, take off the air cleaners, and look down the throats of the carbs while you manually operate the throttle linkage, see if fuel is squirting down the bores of the carbs. Attempt to start if off a small squirt of starting fluid With carbs, this one should be pretty easy to figure out.

Fuel Pump.........
 

See if the fuel is being delivered by the original fuel pump with a pressure regulator in the line. If so, the problem could be with the fuel pump relay or fuse. The relay should be the only red one in the front fuse box. Assuming that your car still has the ceramic VW type fuses, take them out one at a time, clean the contacts and reinstall the fuse. If you don't have a red relay in the front fusebox, you will have to figure out how the existing fuel pump is wired/powered. Once the fuel has been considered, move on to the ignition. Pull the distributor cap and see if the cap contacts and/or rotor are burned or pitted. If so, replace. If not, make certain that the plug wires and coil wire are all firmly seated. Just to be sure, grab hold of the distributor and see if you can turn it by hand. If it is not secure, you could have a dizzy that has moved out of its proper timing position. Good luck, hope some of this will help.

There are two hex head plugs at the bottom of the float bowls outboard on the carbs. Put a rag under one and crack it open. Check to see if fuel runs out. Sounds to me like some part of the system is clogged up. Also, when you turn the key on you should here the fuel pump run in the front of the car. If you don't, start with the pump. If you do move towards the cabs following the fuel lines. Locate and find the fuel filter. If it does not have one it needs one RIGHT NOW. If it has one, replace it. Next is the float bowl check using the drain plugs previously mentioned. This will be a good start.

Tell us what you find.

keep it simple
 

Well I posted this thred worrying about what could be on my new purchase. I decided to pull the cap and there was the rotor blown to bits. I have a MSD box with coil on the 3.0 motor. I hope it is just a bad rotor. If not I have no idea why it would melt and come appart. Are there any issues with running MSD on a stock resistor type of rotor? I will install the new one Thursday and let yall know what happens. Thanks for your replies sofar. I will make notes and keep them.

Absolutely , there are thread after threads on this subject.. You need to get a standard no rev limiting rotor from NAPA, I think the # is np 407, but cant remember for sure, just bought a couple last week. Nice to see it was an easy fix.