'65 Original Notch stalling

[JCFaust]

Hi Every one- this my first post. I recently purchased a 1965 notchback S that has the 1500 engine with duel carbs and 6 volt electricals. Everything is stock on the vehicle which has about 80,000 original miles. I'm thrilled to have the car- I've wanted one for years. I’ve just started driving the car a little bit. I’m concerned as the vehicle stalls out when I’m driving it and it is really hard to restart. Here is more detail: The car starts fine when cold- requiring only ¼ depression of the gas petal and it fires right up. The first few times I drove the car it ran fine and seems to pull well but would be difficult to start after running it for more than 15 minutes. A week later I took the car out for an extended drive and it stalled when waiting at a light on a hill. It took about 10 minutes of cranking a bit and waiting a bit for the car to finally start up and I was able to get back home. I slow charged the battery back up. The next time I took it out it ran fine for about 7 minutes then wanted to stall when I was doing a three point turn. I had to press the petal to the floor just to keep it running. I revved the engine a lot to get the car moving again and it seemed ok when I was cruising about 35 mph. Then when I slowed down to pull in the garage the engine started to hesitate again and stalled. I didn’t try to start it because I didn’t want to overwork the battery again. The next morning the car started right up.
What do you all think is causing this problem?

[Erik G]

you have 2 separate issues. Stalling and not restarting right away

Tune up for problem number one

Check the ground strap to the trans, and all of the trans mount bolts for number two
_________________
Stop dead photo links! Post your photos to The Samba Gallery!

[EverettB]

Yes, I would say start with a complete tune-up.

If I had to totally guess it sounds like the air/fuel mixture screw settings are off or the choke adjustment is off.

Runs great when cold and the chokes are making the engine rich but once it warms up and they open, it can't stay running or restart because the mixture is wacky.

Of course there are other possibilities like the timing is off, etc. but starting with setting the valves and timing and checking & adjusting the carbs. is always a good idea first.

They are sometimes hard to start when hot but usually you just have to hold the pedal to the floor to get it to start then it will idle and run fine afterward.
It sounds like this is not your issue but I wanted to throw that out there since you are new to the cars.
_________________
How to Post Photos
Everett Barnes - [email protected] | My wanted ads
"Water is the only drink for a wise man" | "Communication prevents complaints"
Stop dead photo links! Post your photos to The Samba Gallery!

[Nate M.]

It never hurts to do a godd valve adjust and tune-up w/ plugs, points, condenser, cap & rotor as well as checking/re-setting the timing. If anything, it eliminates those as the cause usually.

That said, I rather doubt that is the genesis of the problems. From what you describe, it sounds like either the chokes are staying on to some degree and/or you have the float level set too high (or a leaking carb inlet valve). All of these cause the motor to run too rich and will manifest itself as hesitation @ lower engine speeds (including hunting @ even speeds), stalling @ idle when the motor is warmed-up and finally hard warm engine starting (flooding after the motor is shut-off). A float level too high won't necessarily be a problem when the engine is cold because the motor needs more fuel when cold anyway.

Something else to look at anyway. Good Luck!!
_________________
Regards,

Nate M.

Squarsche build
Heavy Metal Affliction feature

For heaven's sake, put a type4 and a Porsche 5-speed in there. . . It's the right thing to do!!

[KTPhil]

Do these carbs have an idle cut-off jet? Maybe that is clogged or sticking, leading to rough idle or dying. Agreed on a regular tune-up to eliminate any other causes, then check and adjust the choke. I'd check the oil for gassy smell, in case you have a torn fuel pump diaphragm, in case that's adding to your troubles.

[Tram]

Not to contradict the Boss, but it's imperative that you take care to verify that the ignition system is 100% in order before moving on to the fuel system. Make sure the charging system is working too.

This could be an ignition condenser or coil issue (hot failure) or a charging system issue (battery running too low to activate other electronics).

I've seen a couple weird condenser issues that mimicked fuel delivery issues just perfectly.
_________________
Немає виправдання для війни! Я з Україною.

[EverettB]

[Big Bill]

All of the above suggestions are very good, also check your fuel tank cap to make sure it is vented. Some of the symptoms you stated almost sound like a fuel starvation problem ....to me anyway.

[JCFaust]

Thank you all for your feedback!
I really appreciate the help.
JC