Hey all I've been spending the last few days trying to adjust the automatic choke on my Holley 770 Street Avenger on my '72 U code Supreme, and for some reason, once I set it, the cap will "sping" forward a bit and rhrow my adjustment off ever so slightly. I can get it to about 1/8" gap between the choke plate and the horn, but no matter how far I dual it back to close it up a bit more, the cap won't tighten up and keep my adjustment

Any iseas?

 

Take the cap off and make sure that all the parts are aligned correctly.

 

There is usually a gasket between the cap and housing. If it is missing you will not get the tension on the cap to hold it in place.

 

I've done that and double checked.

 

Hmmm...I don't remember seeing one when I removed the cap to check the alignment of the choke rod tang and the spring. The weird thing is, the cap was tight before I started making adjustments. Is it possible to just make a gasket for the cap?

 

Should be able to get a $2.00 gasket which is removable (multiple times) and fits per OE specification at your local auto parts store. You may have (originally) had two gaskets - a felt type gasket between the thermostat housing and choke cap and another gasket which sits on the perimeter of the choke thermostat housing - not completely sure if a 770 Avenger has one or both or which type.

 

If most of us are like me, we have a box full of extra gaskets and seals left over from older sets. If you don't get one, I will mail you one if you will PM me a snail address.

 

PM sent

 

Figured it out...apparently when I took the cap off I somehow reversed the metal retaining ring so it was not making contact with the choke cap "pointer" I switched it around and voila! Choke cap is good n snug now😀 Thanks to all for the suggestions.

 

 

Nice