Engine Stalls, Engine stalls and dies out when I begin to release clutch Options

[mimatti]

Hello to all the 914 owners,

I am new to this forum and it looks like a great place to be regarding 914's. A little background about my 914 before I ask my question. It's a 1972 1.7Liter, that had it's two carburetor system replaced, in 2011, with a brand new single Webber Carb. I bought the car 4 years ago and unfortunately it's been sitting in my garage ever since due to various projects. I was able to drive it up the drive way and into my garage with no isuues, and she stayed there the entire four years. This weekend I decided to take it out and drive it a little. The idle was way too low, so I adjusted and got the idle to just under 1,000 rpm. The problem is when I try to start out in 1st gear, as I begin to slowly release the clutch, the engine's power dies to the point where the engines dies out. Even when I revved the engine to almost 3,000 rpm and then slowly released the clutch, about mid-way in the clutch's pedal travel, the engine's power is robbed, engine rpm goes down toward idle very quickly, and the engine dies out. I made sure that I was in 1st gear and not a higher gear, the problem persisted to the point where I couldn't even drive it back in my garage, I had to push it in.

Before I remove the carburetor, or and clutch work, does anyone have any idea of what the problem might be, or at least limit the possibilities to a system, i.e. fuel, air, carb, clutch, etc... I appreciate any help in this matter because I now finally have the time for this Porsche and want to begin enjoying it.

Regards,

mimatti

[mimatti]

Thanks for that, I'll have to contact the previous owner to see if he put in a cam for carb or FI cam. Yesterday I pulled off the fuel line going directly into the carburetor, I put the fuel line in tupperware to catch the fuel and filmed the pressure of the fuel coming out of the line. I tried attaching the 15 seconds video on here but kept getting an error trying to attach it on here. Anyway, I cranked the motor and then watched the video and it seems the pressure coming out of the fuel line was very good, not trickling, but actually being pumped out at a pretty good pressure. I also took a picture of the fuel captured in the tupperware and attached that picture with this reply. Seems brown to me.

This is what I have deduced so far and please guys let me know what your take is. The pressure going into the carburetor seems to be very good, so somewhere within the carburetor the pressure is not what it needs to be, so perhaps the jets need cleaning or maybe a diaphragm issue since the car sat four years without being driven. So needless to say, the carburetor is coming off and taking it in to get checked out, cleaned, replace any enternal part that needs replacement, and maybe even bench tested. I also realize the fuel is old and I need to completely drain all the fuel within the system and put in an entire tank full of new fuel and run that through.

What do you guys think of the diagnosis so far? Thanks