Project "Schrum" 1959 Gmc 100

[Denee007]

Well, if you pull on the choke knob, it should pull the little lever which closes the choke plate inside the carburetor, thus "choking" to bring more gas on a cold start, and visa versa. Pull the air cleaner off, have someone work the choke and you see what's actually going on under the hood. It's quite a simple thing. You might check for vacuum leaks. I can imagine the single barrel carburetor might need attention; though simple, sure can make for some running problems.
I did watch the video I had a similar problem with the 6 cylinder that was in my truck from the start. I got it to run, but ran crappy. Now I have a nice running sbc.
Keep analyzing, you'll get there!
dne'

Originally Posted by SCHRUMGMC

How do I know if its a bad choke cable?
I've driven it occasionally, it dies when I push the choke in, watch the video and you'll see what happens to it

[SCHRUMGMC]

Thanks Denee, that is what I thought with the choke
The carburetor has been rebuilt. it squirts gas out the shaft thing

I put new tail light housings on the truck, just wondering how I can wire it up

[BlackedOut67shorty]

It is hard to tell how it is running from the video. If its manual choke go to the carb and open it up all the way as if it was all warmed up, my 67 c10 had a bad stumble to it cause my choke cable was still engauged even tho i took it off choke making my truck run on fast idle and then shutting off when i gave it the beans. Also have you checked for any vacuum leaks, should be too many places to leak from on an inline.

[Denee007]

well, take a close look at your carburetor, shouldn't be squirting gas out, not to mention a potential fire hazard! EEk!

As for you tail lights~ is there existing wiring where the lights would go? Do you have a test light? You may want to buy one and have it on hand for checking wiring to see if particular wires are Hot, or not. You may have to start at the fuse box, trace wires under the truck, check for cut wires, bad connections, etc..
dne'

Originally Posted by SCHRUMGMC

Thanks Denee, that is what I thought with the choke
The carburetor has been rebuilt. it squirts gas out the shaft thing

I put new tail light housings on the truck, just wondering how I can wire it up

[SCHRUMGMC]

What can I use to connect the new wires? I have a female connector that out go on the wire to connect to the prongs. I'd like to get the dome light, and tail lights/turn signals working

[BlackedOut67shorty]

Originally Posted by SCHRUMGMC

What can I use to connect the new wires? I have a female connector that out go on the wire to connect to the prongs. I'd like to get the dome light, and tail lights/turn signals working

There should already be a harness for it, if its gone just got to a pick and pull to get another pigtail and solder your wires to the pigtail and plug em in

[SCHRUMGMC]

Do I just use the generator wiring and put connectors on them?
Where can I get brackets at? Can I use one off of another I6?

[BlackedOut67shorty]

I just got confused

[SCHRUMGMC]

I use the Generator wiring for the alternator right?

Tried getting an alternator bracket off for my truck today at a local junkyard and couldn't get it off so I gave up on it. Looks like I will have to buy a new bracket set

The truck I tried getting it off of
Its a 71 Chevy with an I6

[Rita]

LOL - looks like my "Rita" is ahead of you "grandfather" - keep up the good work :-)

[lowrodderchev]

does it look like this?

[SCHRUMGMC]

Originally Posted by Rita

LOL - looks like my "Rita" is ahead of you "grandfather" - keep up the good work :-)

Yeah, it'll get there. For some reason it keeps dying when I push the choke in

Originally Posted by lowrodderchev

does it look like this?

Attachment 1295469

I have no clue Lowrodder, I know that I will have to get new brackets. That looks to be a V8 one

[lowrodderchev]

that's the one I'm using on my 6 cylinder with a arm to adjust it bolts to the drivers side of the motor

[SCHRUMGMC]

Does anyone have a clue how to install the transmission cover?
Mine doesn't have the hole where the gas pedal goes on

[SCHRUMGMC]

Got the Horn cap polished up

[Kim57]

Nice and shiny.
Kim

[SCHRUMGMC]

I have a Mouse problem in the truck damn things are everywhere in it. The bench seat has a nest in it. To top it off the Distributor is behaving erratic and all over the place. Thank God I have a backup distributor if it is worn out

[OrrieG]

See you are back at it, here are some comments.

1. Choke issue. Usually when it runs fine with choke closed but dies when you open the choke it is a vacuum leak. The additional air from the leak leans it out so it will not run. High idle with choke on disquises the problem. Get a vacuum gauge and hook it up you will find it is low and bouncing all over the place. Take starter fluid and spray around the manifold base, carb shaft, vac advance fittings, if the engine raises the rpm you have found the leak. If it is reading 16-18 on the vac gauge they it is another problem.

2. Tail light wiring. Since you are starting from scratch I would recommend using a trailer connector to connect the tail, turn and future back up lights to the front harness. Bonus is when you pull the bed you are just unplugging one thing. Just solder the connectors, cover with shrink wrap and you are good to go. I used them for my front turn signal grille, dash bezel and in the back too.

3. Generator to alternator swap: http://67-72chevytrucks.com/vboard/s...d.php?t=526547

4. Post a pic of the trans cover, don’t understand the throttle question. Sounds like it was changed out at some point.

And hello to D’ne good to see you back.

[SCHRUMGMC]

Originally Posted by OrrieG

See you are back at it, here are some comments.

1. Choke issue. Usually when it runs fine with choke closed but dies when you open the choke it is a vacuum leak. The additional air from the leak leans it out so it will not run. High idle with choke on disquises the problem. Get a vacuum gauge and hook it up you will find it is low and bouncing all over the place. Take starter fluid and spray around the manifold base, carb shaft, vac advance fittings, if the engine raises the rpm you have found the leak. If it is reading 16-18 on the vac gauge they it is another problem.

2. Tail light wiring. Since you are starting from scratch I would recommend using a trailer connector to connect the tail, turn and future back up lights to the front harness. Bonus is when you pull the bed you are just unplugging one thing. Just solder the connectors, cover with shrink wrap and you are good to go. I used them for my front turn signal grille, dash bezel and in the back too.

3. Generator to alternator swap: http://67-72chevytrucks.com/vboard/s...d.php?t=526547

4. Post a pic of the trans cover, don’t understand the throttle question. Sounds like it was changed out at some point.

And hello to D’ne good to see you back.

The Transmission cover came out of a V8 so it won't fit the I6 area it is different. The Distributor is behaving weird, it shoots around to the retarded timing area when I try to set it. Thanks for the Link

[SCHRUMGMC]

I believe my Distributor is broken now due to it moving around erratically like its doing. It is moving around to the Retarded timing area. Its tightened down as it can get, it just started doing thing and I'm unsure of how and why its doing what it is doing

[lowrodderchev]

Dumb question but your vacuum advance is tighten down to

[SCHRUMGMC]

Huh? I haven't messed with the Vacuum advance

[_Ogre]

Originally Posted by SCHRUMGMC

The Transmission cover came out of a V8 so it won't fit the I6 area it is different.

trans cover is the same for v8 or i6 in chevy, gmc is probably the same
some have the 4 speed hole in them
gas pedal pivot goes thru the fire wall

if your distributor is flopping around, fix it
as lowrodder mention: the vac advance should be firmly attached to the distributor
also make sure the clamp is holding the distributor to the block

[SCHRUMGMC]

Originally Posted by _Ogre

trans cover is the same for v8 or i6 in chevy, gmc is probably the same
some have the 4 speed hole in them
gas pedal pivot goes thru the fire wall

if your distributor is flopping around, fix it
as lowrodder mention: the vac advance should be firmly attached to the distributor
also make sure the clamp is holding the distributor to the block

If its the same then mine doesn't line up the holes correctly. On one side it doesn't lay flat and there is no place to put the Gas pedal on the transmission cover. Could it be the Distributor is bad, because I haven't loosened it up and its tight as it can get

[lynx5653]

Take it to a mechanic