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I overhauled the 1 bbl carburetor on 66 mustang. it runs worse now?

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Hi Friend:

Sorry to Hear about your Problem. I'm going to Assume your carb is the Autolite 1100. 1BBL. Carb.

Take the Carb Top off and Make Sure that your Needle and Seat, Which a Tab from your Float Opens and Closes allowing Gas in when the Gas in your Float Drops down To Specified Float Level Settings.

Gets to a Level that it Keeps it High Enough that it Does'nt Starve for Fuel ,But then again it Does'nt Over Feed the Float Bowl by not shutting the Fuel Off.l and Cause a Flooding condition.

In your Overhaul kit it should come with a Float Gauge. and the Specified Seting. Also if you Replaced the Needle and Seat make sure the o'ring it on the new Needle Valve.

After you checked to make sure all the inside parts are Good and set right. Turn your Idle Mixture Screw all the way til it stops(DON"T FORCE IT ANYMORE. The Turn it back out 1-1/2 Turns.

Make Sure your That your Accelerator Diaprham's All put in Correctly: the Spring, the diaprham, Cover (4) Small Bolts are in Secured Firmly ,BUT don't over tighten you'll srip them and will result in a Vacum Leak.

Double check all your Linkage and Vacum Line/or Lines.Make sure all your Mounting Bolts and Nuts are Tight.

If everything is installed properly Now you should be able to Start and then Adjust your Idle Mixture Screw Slowing in or out until the Engine is Running the Best. If you have a Vacum Gauge you can Remove the Vacum line Plug it of. Hook your Vacum Gauge over the outlet and you can Vacum Adjust your Carb by turning Idle Mixture Screw until you get betwwen 18-23 Inches reading on the Gauge.Remove it Put the Vacum hose back on.

This should Get your Engine running Much better (Smoother) and and ready for the Road.

Thanks for Using FIXYA Please letme know how mu Solutions helped you by Voting for Me. and a Testamony would be Appreciated:

From: d_hubbs

Posted on Jul 29, 2010


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