330 GTC stall

How hot was it? Vapour lock?

 

For AndruetBiche: Good thought.
For ferraridigest: It could have, indeed, been a case of fuel starvation--especially if you were running only on the mechanical pump. Was the electric pump off? If so, you may have solved the mystery. My GTC ran well on the mechanical pump until the engine compartment got toasty; it would then stumble and misfire until the electric pump was activated. 'pretty common, from what I understand. Easy fix: Flip the switch on anytime underhood temps are anticipated to be high...just about all of the time, for that matter!
Now, if the pump switch was on, was the pump actually working? Not sure? Check it out by turning the ignition key to the run position (don't start the engine), then flipping the switch on and listening to confirm that the electric pump is actually working. If you don't hear it, you may have an electrical problem leading to low/no fuel pressure when hot. The Webers don't like lots of pressure, but do need 3-4 PSI, if my memory serves me. Further, if the 'electropump' is working, check the fuel filter(s); might be time for a change.
Oh, if the fuel lines are 'original equipment' or of unknown age, they might need replacing, too. 'Sclerosis' can limit the flow; then, there's the safety issue.
Good luck & keep us posted.
Cheers,
Coop

 

I have had that problem with a 330gtc once driving through London it stalled and after a few minutes we opened the tanklid and it started right away again without giving any problems anymore driving to Holland.
A VAPOUR LOCK

 

Vapor lock (from high engine temps) is also sometime aggrevated by low fulel levels in the tank, if it gets worse check first fuel filters to insure they are free flowing then it on to the mechanical pump.

 

Fuel flow; weak pump, aux weak or not on, gas tank vent or fuel filter. Have not found vapor lock to be a problem with modern gas and it is plenty hor and congested in FL.

 

I had an almost identical problem with my GTC - it WAS NOT a fuel problem but electrical.

There is a relay below the fuse panel the closes when the key is at the "marche" position.

The points on this realy tend to burn - replace it with a general purpose Bosche continuous duty relay and you're in business.

Bob Z.

 

I'd try the electric fuel pump first.

 

All good advice, but you should also be aware that there is a set-screw on an electrical junction box that can get corroded over time and make everything go dead. Fortunately, the cure is easy: just insert screw-driver and twist.

 

If you get a look at the mechanical fuel pump at the bottom of the crankcase you will see why this can become a problem. I believe there is a fibre (?) spacer between the case and the pump. As the car heats up either the space expands a bit or the workings of the pump are altered enough for the pump to lose efficiency. When I had my first 330 back in the 70s I actually shaved the spacer to have the actuator/hammer be a little closer. It did the trick.

However I am not a mechanic and I don't recommend doing this at home.

Now you know why Ferrari put in the electric pump. Kind of an afterthought to deal with a poor design. Not many cars out there that need a second fuel pump.

 

Fantastic luster!

 

There is an alloy tube that connects the tanks. There is a fitting right in the middle of that pipe that looks like a gas tank drain plug. When your under the car, There is a little round cover over the fitting.Some cars pick up the gas there some pick it up at the top of the drivers side tank. Take the bango from the top of the tank,remove the long tube and use that bango with a new short yellow hose and change over to the gravity pick up point.Put the plug in the hole at the top of the tank. Next time,if there is a next time,remove and drain the feul filter,and replace,and turn on the electric pump,if no gas,no feul pick up,the feul pick up point is a must conversion if you have the top tube pick up.

 

That is one car that I NEVER get tired of looking at! It is as fresh and exciting as the very first time that I saw one so many years ago. Somehow I don't think that we will get the same rush looking at a 360 30 years from now!

John

 

Hi FerrariDigest,

Do you garage that stunning 330 in Manhattan?

Best,
Barchetta

 

No not in the city! I keep it upstate in a nice climate controlled garage. Although I do drive into nyc once in a while. Lots of looks and thumbs up but very nerveracking avoiding busses, taxis, bikes, and pedestrians!!!

 

First off, B-E-A-U-T-I-F-U-L car and very elegant color combination. I can only imagine what the V-12 exhaust note sounds like in the city!
If your s/n is 11269, your car is a very late 330GTC which should have the 365 upgrades, like CV joints instead of u-joints on the halfshafts, and two Bendix style electric pumps in the rear of the car and not the 1 mechanical pump (on engine) and 1 electric "ticker" at the rear. These cylindrical shaped pumps have an internal screen which you can easily check for debris, as well as the glass bowl (fuel pressure regulator assy.) on the inner fender. These pumps will get warm to the touch and shut off if they are working too hard (overheating).
I'm with Ed Niles on this, I think itsa electrical gremlin, notta da pumps. Check the junction box and the fuse boxes. The brass components in these will corrode and when circuits get hot, the fuse holders may not grip the fuses firmly enough, or the terminals on the fuse box itself may flex/expand/warp etc. Not to mention, the fuse/relay board assembly isn't exactly in a well ventilated area.

 

Ex- Brandon Wang, wow!

 

Very cool to know the history of your car. I do recognoize some of the previous owners' names, and they are very discriminating to say the least.
I used to be involved in vintage Ferrari restorations and have done many hours of research to determine the history of a particular car. All that info seems to be easier to come by today, thanks to technology (internet) and in great part to people like Gerald Roush, Mike Sheehan, Marcel Massini, Ed Niles, and many others.

You're absolutely right, it would be damn hard to keep a "poker face" while driving the car, and even for a couple hours afterwards!

 

I certainly agree that this is one lovely example of the GTC!

Interesting to read your comments about the 365 upgrades. My car (#11333) has all of these except for the fact that it has the electric + mechanical pumps. It was shipped at the end of July 68 but is of course RHD and the cars may not have been made sequentially or may differ LHD to RHD. Only proves you have to be cautious about generalising with older Ferraris.

Again on RHD cars the fuse boxes are on the bulkhead in the direct heat path from the manifolds, leading to distorted bases and 'popping' fuses. I don't know if LHD cars have the same problem but it is clear to me (after 20 years cursing the arrangement!) why the 365 had it's fuse panel moved to the interior.

John

 

Ahh, I bet your fuel pump is failing. Maybe you can replace the membrane only but in the case of my car with the same situation the electric fuel pump could not pump enough even if left on all the time to compensate for the failing mechanical fuel pump while on a highway and going up a hill. This could be a motor out issue if that is the case. Or some people add a more robust modern electric pump and leave that on all the time. Yale

 

Ah, the Hill Thing! Check Tom Yang or Kerry Chesbro, one of their sites reported on a cracked fuel tank pick up and all the issues associated