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Old May 21, 2012 | 10:20 AM
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About 3 weeks ago, My C3 wouldn't go for 2 miles without the engine flooding out and dying. It was taken to the shop where the carb had to be overhauled and the timing was adjusted. Compression test checked out fine for all 8 cylinders. Car came with a freshly rebuilt 327 with ~1 mile on it from testing purposes.

This past Saturday I was on the backroads test driving it. Upon climbing a steep incline - it had trouble going up the hill. There was some slight popping noises on this first incline. Then as I got another 2 miles into my drive, it couldn't climb the slightest elevation change and eventually died out.

A nice gentleman in a classic Volvo pulled off to try and help me out in which he couldn't do much. He offered to follow me back to my place and I finally got it started again, but upon pressing any throttle it would start "popping" again and obviously wouldn't make any inclines. It died out 1/4 mile down the street in a neighborhood away from any busy traffic.

So i called Hagerty towing and the tow truck came to pick it up and take it back to the shop. They should know something today.

Here is the symptoms:
-popping noises when pressing accelerator
-major loss of power
-hard to start when warmed up
-wants to stall out when pressing accelerator
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Old May 21, 2012 | 10:42 AM
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plugged fuel filter
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Old May 21, 2012 | 10:44 AM
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I'm guessing timing jumped,dist not tight and it spun.

Or look at the gas cap. Might be non vented and now its fuel starved
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Old May 21, 2012 | 10:55 AM
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Points closed up/burnt? A failed condenser will burn them up in short order.
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Old May 21, 2012 | 10:55 AM
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Originally Posted by oldalaskaman
plugged fuel filter
That was my first guess


Originally Posted by AzMotorhead
I'm guessing timing jumped,dist not tight and it spun.

Or look at the gas cap. Might be non vented and now its fuel starved
I checked the distributor - it was on there tight and couldn't rotate.

The gas cap is the same style as the stock one - non vented. Would a vented fuel cap be a better way to go?
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Old May 21, 2012 | 11:12 AM
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Originally Posted by markids77
Points closed up/burnt? A failed condenser will burn them up in short order.
MSD distributor is also new. Not sure though.
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Old May 21, 2012 | 11:15 AM
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Originally Posted by KevinG
That was my first guess




I checked the distributor - it was on there tight and couldn't rotate.

The gas cap is the same style as the stock one - non vented. Would a vented fuel cap be a better way to go?
Car in the picture has a GT style flip top cap. Never offered on a vette
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Old May 21, 2012 | 11:17 AM
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Originally Posted by AzMotorhead
Car in the picture has a GT style flip top cap. Never offered on a vette
That's a billet fuel cap door. The gas cap is underneath that "flip top lid".
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Old May 21, 2012 | 11:32 AM
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It could be as simple as a bad or out of adjustment accelerator pump. Clogged fuel filter also comes to mind.
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Old May 21, 2012 | 11:44 AM
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My guess would be a bad coil, and maybe starter connection.

Another thing to check would be the wire connections on the starter. I had pretty much the same issues as you. The problem was that the cloth covered wire that goes from the starter to the coil was frayed at the starter. This bad connection created heat/resistence at the coil.

Too much resistence at the coil, led to bad things. It would run like a champ for a while, but as the heat built up on that wire the ignition would get weaker, and weaker, and would eventually result with the car dying. It looks like flooding, with the heavy gas smell, basically because the ignition was too weak to burn it. After it cooled down, it would start back up and run for a while again.

I'd make sure the connections are good at the starter. And also make sure all the wires down there (particularly the cloth covered one), are as far away from the exhaust as possible. If this was your problem, your coil is most likely shot, so get a new coil also.
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Old May 21, 2012 | 11:50 AM
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Originally Posted by KevinG
That's a billet fuel cap door. The gas cap is underneath that "flip top lid".
gotcha. Let us know what they find
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Old May 21, 2012 | 11:57 AM
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Camshaft gone flat. Thats my guess.
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Old May 21, 2012 | 01:49 PM
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Originally Posted by forvicjr
Camshaft gone flat. Thats my guess.
That was my first thought too. Is the popping coming out the carburator?
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Old May 21, 2012 | 03:04 PM
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Originally Posted by oldalaskaman
plugged fuel filter
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Old May 21, 2012 | 03:11 PM
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Originally Posted by 63mako
And if its already plugged that quickly after a carb rebuild,check inside your fuel tank,make sure it is clean!
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Old May 21, 2012 | 04:48 PM
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Put a fuel pressure gauge on it and see if it drops off.
Also make sure the hei distributor is connected to. 12 volt wire. Not the stock resister wire that drops the volts down.
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Old May 21, 2012 | 08:10 PM
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I had similar symptoms on my '69 last year - it was a fuel delivery problem. In my case, one of the valves in the fuel pump came unseated so the pump couldn't deliver enough fuel when I accelerated or climbed grades. Your car looks like a 1969 - that year requires a VENTED gas cap. Easiest to check is the gas cap, then the fuel filter.

Finally, check the fuel pump, easy test is to open the line to the carb and crank engine while fuel is squirted into a can held at the open line. You should get a good amount of gas out of the pump. This test involves gasoline in the open, so observe safety precautions and have no open flames around. You could also have a clogged sock in the tank.


Pete
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Old May 21, 2012 | 09:52 PM
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Originally Posted by PeteZO6
I had similar symptoms on my '69 last year - it was a fuel delivery problem. In my case, one of the valves in the fuel pump came unseated so the pump couldn't deliver enough fuel when I accelerated or climbed grades. Your car looks like a 1969 - that year requires a VENTED gas cap. Easiest to check is the gas cap, then the fuel filter.

Finally, check the fuel pump, easy test is to open the line to the carb and crank engine while fuel is squirted into a can held at the open line. You should get a good amount of gas out of the pump. This test involves gasoline in the open, so observe safety precautions and have no open flames around. You could also have a clogged sock in the tank.


Pete
I was about ready to post also, through the 70 model year (except the January 1, 1970 and later California builds) ALL C3's have VENTED fuel caps!
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Old May 22, 2012 | 07:09 AM
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Originally Posted by Mashman
My guess would be a bad coil, and maybe starter connection.

Another thing to check would be the wire connections on the starter. I had pretty much the same issues as you. The problem was that the cloth covered wire that goes from the starter to the coil was frayed at the starter. This bad connection created heat/resistence at the coil.

Too much resistence at the coil, led to bad things. It would run like a champ for a while, but as the heat built up on that wire the ignition would get weaker, and weaker, and would eventually result with the car dying. It looks like flooding, with the heavy gas smell, basically because the ignition was too weak to burn it. After it cooled down, it would start back up and run for a while again.

I'd make sure the connections are good at the starter. And also make sure all the wires down there (particularly the cloth covered one), are as far away from the exhaust as possible. If this was your problem, your coil is most likely shot, so get a new coil also.
I am thinking the same thing.
I just went thru the same problem with a 76 cj5 I have. I changed out the coil and the ignition module and I was on the road again.

I also had an old 78 camaro that was doing the same thing. I thought it was the new manifold I put on was to large. It ended up being the coil was too weak.
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Old May 22, 2012 | 10:29 AM
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UPDATE:

Mechanic called and said 3 of the cam lobes have already dropped out. This is a re-machined engine block and valves, however the mechanic said that whoever put the motor back together didn't know what they were doing (the previous oenwer). He said the car is running on 6 cylinders now...

Estimated cost to repair: $1,500-$2,000.

Advice?
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