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Old 06-07-2018, 09:28 AM   #26
dolphans1
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Re: My 1956 Chevy Truck won't start

Thanks everyone, trying to see if I can get a friend over to lend me a helping hand. Will report back.
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Old 06-07-2018, 11:21 PM   #27
dsraven
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Re: My 1956 Chevy Truck won't start

this may seem like a goofy idea, but how old is the fuel? old gas can screw you over like this. maybe worth a look. take the fuel line off at the carb and put it into a gas can or some other safe method of collection, a semi clear jug will allow you to see the color. crank the engine and get some fuel in the can. take a sniff of the fuel and see how it smells, if it doesn't smell like it should then dump the tank and get some fresh fuel. this old gas thing has messed up many guys. the old gas doesn't burn like the new gas does. it may also have some water in the fuel system which can mess you around.
worth a try?
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Old 06-10-2018, 07:17 PM   #28
dolphans1
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Quote:
Originally Posted by 1project2many View Post
I've been there before. One of the hardest parts of doing this by yourself is getting a handle on what's happening.

There are a few things you can do that will help.

1) Try to come up with a method to crank the engine from under the hood. I'm guessing you have the foot pedal start so a lever, a rope on the starter rod, maybe grabbing the linkage It's a helluva lot easier than trying to run back and forth from the driver's seat.

2) Check for spark starting with the coil wire. You can buy or make a simple spark tester but they're different for points and for electronic ignition. If you buy a tester like this one it will make a nice "snap" noise each time it sparks so you can hear it from the cab. In order to make a tester for points you need a clean plug with the gap opened up to about .045". Connect your new tester to the coil wire and ground the body to the block. Crank the engine and watch for steadily repeating blue-yellow sparks. If you don't get steady spark then you need to find out why.

Note: If you are still running points there's a chance that when the engine stalled and sat with the key on the points got burned. If so then you may be able to sand them and reset the gap and get it to run again.

If you do get steady spark then reconnect the coil to the distributor and move the tester to the first plug wire. Do the same check at each plug wire. If you have one or more wires that don't spark correctly you need to find out why. It could be wires, or the cap, or both.

Once you're sure you have steady spark you can move on to checking for fuel.

Good luck.
Well this is what Iíve done so far, Iíve got someone to help me and we changed the spark plug wires the rotor, distributor cap, points and condenser and I even purchased a carburetor kit and he rebuilt for me.

At times it sounded like it wanted to crank, checked for spark at the points, did not have anyone, found a lose wire from positive side on coil to starter and thought that was it. Tried again and nothing.

I told my mechanic friend the negative wire to battery was bolted to the firewall and I didnít like that, so tomorrow weíre going to reroute to engine block. Could that present a firing problem?
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Old 06-10-2018, 11:55 PM   #29
DransportGarage
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Re: My 1956 Chevy Truck won't start

Testing is key here, not changing parts. (Please see gentle guidance in post #12.)

If you want to feel good about the engine ground, just temporarily attach a jumper cable from the negative battery terminal to the block. Don't modify the existing ground circuit.

If I walked into your garage right now, these are the first two things I would do:

1) Check the condition of the spark. Pull the coil wire out of the distributor, stick a screwdriver into the clip in the wire, and position the shaft of the screwdriver close to the block while cranking the engine. The spark will either be blue (good), orange (fair/poor), or non-existent (very poor). If you get zapped (good for the engine, bad for you), let us know that too.

2) While looking down the throat of the carburetor, stroke the accelerator. You should see some gas squirting into the engine.

Let us know the results of these two tests and we'll go from there.
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Old 06-11-2018, 10:57 PM   #30
dolphans1
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Re: My 1956 Chevy Truck won't start, SUCCESS FINALLY

HEY FINALLY SUCCESS - Replaced the ground cable on negative side of the battery with a new one, which for some reason, someone bolted the cable to the firewall- so the new cable was bolted to the engine block. The gap on the new points was widened and we finally got excellent spark and she finally woke up and started just fine.

In between all of that trouble shooting, the old coil was put back on, thinking the new one was to blame, the older coil appeared to be a higher performance style coil (tan color) than the newer original coil (black) I had purchased from Autozone with a life time warranty.

Thanks for everyone's input and advice and a sure learned a lot. I drove her 5.5 miles today and made some history in a 62 year old American icon.

Here's a short video - https://youtu.be/ZFMbUFZtz3o



Quote:
Originally Posted by DransportGarage View Post
Testing is key here, not changing parts. (Please see gentle guidance in post #12.)

If you want to feel good about the engine ground, just temporarily attach a jumper cable from the negative battery terminal to the block. Don't modify the existing ground circuit.

If I walked into your garage right now, these are the first two things I would do:

1) Check the condition of the spark. Pull the coil wire out of the distributor, stick a screwdriver into the clip in the wire, and position the shaft of the screwdriver close to the block while cranking the engine. The spark will either be blue (good), orange (fair/poor), or non-existent (very poor). If you get zapped (good for the engine, bad for you), let us know that too.

2) While looking down the throat of the carburetor, stroke the accelerator. You should see some gas squirting into the engine.

Let us know the results of these two tests and we'll go from there.

Last edited by dolphans1; 06-11-2018 at 11:52 PM. Reason: added short video
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Old 06-12-2018, 07:24 PM   #31
dolphans1
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Re: My 1956 Chevy Truck won't start

Today I ran 2 new grounds, I ran one from the firewall to the negative battery terminal, and a ground wire to the firewall to the starter that was missing.

The negative battery post is grounded to the body https://www.trifive.com/garage/56%20...nual/12-12.gif , The body is grounded to the engine at the lower starter bolt https://www.trifive.com/garage/56 Chevy Assembly Manual/12-15.gif The frame is not grounded.....However, if you have a strap, you can ground it to either the body or engine.

I noticed when I ran the new ground wire my turn signal worked on both sides of the instrumental cluster panel whereas it never did before.

https://youtu.be/gkhXA00Ae8I

Last edited by dolphans1; 06-12-2018 at 08:58 PM. Reason: added short video clip
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