Need some help on Edelbrock 1409 Carb

[Bry21317]

After taking the boat to the lake yesterday, I found my choke did not seem to be working, everything else was running great, but when starting it cold, it was a real pain to keep running. It would not idle until I got it warmed up to 170 on the trailer, or it would die. Once It got warm, it was fine then it idled no problem, but until then it cut off when I tried to put it in gear. It also did this one time when I was leaving a beach after sitting for about 1.5 hours.

I have the electric choke, and I took a look at it today, it seems the choke is not working at all. I read through the Edelbrock Manual on this and can't figure out how the choke it supposed to get triggered to close. Can anyone help me on this? I put the Throttle all the way to WOT, and pumped it a few times. Then turned the key to the ON position, did not try to crank it, just put it in the on position, thinking the choke should be triggered but it was not. This is what I am not sure about. The positive wire is hooked up and it has a good ground on the Ground wire.

Also I noticed that the Fast IDle screw which is A in this picture is not on my carb, so I will have to replace this.

Bryan

 

[Mkos1980]

Re: Need some help on Edelbrock 1409 Carb

the 1409 does not come with a fast idle screw. Thats what the throttle handle is for. When cold the choke plate should be closed. When you put a 12v source to the choke wire the choke will heat up and open up. When you turn off the 12v source the choke will cool down and the spring inside will relax and close back the choke plate. Don told me to wire my + into the alt and it works great. I tested to make sure it worked first by grounding the choke to the choke itself and just running a wire from the battery just to see if it opens while I was sitting in the boat at home. What do you have the + tied into? I PM'ed Bondo about starting and he said 2-3 wot and keep it at 2/3 throttle. I tried that and it starts immediately. I was at first pumping too mayny times and leaving it at WOT which cause some hard starting.

 

[Mkos1980]

Re: Need some help on Edelbrock 1409 Carb

In all honesty when I had my Qjet I didnt have a choke on it at all because the intake I was using didnt have a provision for a heated choke. It started fine.

 

[wca_tim]

Re: Need some help on Edelbrock 1409 Carb

what he said....

 

[Bry21317]

Re: Need some help on Edelbrock 1409 Carb

Thanks for the help guys. I only looked at the choke while it was not running, so maybe this was my problem not seeing that it was closing. I was just reading through the manual and saw that screw, was not on my carb this is why I thought it was missing.

The choke wire is hooked up wherever the stock choke wire came from, not sure, but it worked on the Old 2 bbl Rochester stock carb. Now it does not seem to be working on the new Edelbrock 1409. So I will try to fire it up and pay attention to it and find out if it is working or not for sure.

The engine will fire up, just hard to start when cold.

Here is my process to start it, which is the same that I used on the old 2bbl carb.

1) Make sure that my blower has been on for at least 5 minutes, minimum.

2) Push the throttle to WOT, pull it back to neutral, I do this about 3 - 5 times.

3) Put the throttle up to about 1/3 throttle, then turn the key, once it starts, I keep the throttle where I can get the rpms to about 1000-1200 RPMS. Then I let it warm up, until I can put it in gear to get it off the trailer.
With the 2bbl I could fire it up, back it off the trailer and it would not stall out on me, just stay running lower RPMS until she got warm, then it would smooth out.

4) Once its warm, it runs great. So this is why I was thinking the choke is not working right.

I have the IDLE set once its warm to about 700 rpms, so this is in the right spot, but it does not want to idle right, when cold.

Bryan