carb question - Team Camaro Tech
Troubleshooting Diagnosing problems done here.

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post #1 of 4 (permalink) Old May 6th, 03, 07:17 PM Thread Starter
Join Date: Apr 2001
Location: fort worth texas u.s.a.
Posts: 19

1985 iroc H.O.305 Buoght car from wifes cousin he put new carb on it mfg by holley 64-70087 what is this the choke is not working right there are three screws on side of choke with a green wire hanging down beside it wether wire is hooked up or not no change runs good once is warmed up need to fix it driving back and forth to Fort hood every weekend to see my wife and kids THANKS
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post #2 of 4 (permalink) Old May 7th, 03, 03:00 AM
Senior Tech
Join Date: Mar 2002
Location: Austin, TX, USA
Posts: 5,277

A carb on an 85?? Sounds like the mystery wire might be for the choke heater.


68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
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post #3 of 4 (permalink) Old May 7th, 03, 08:11 PM
Tech Team
Join Date: May 2002
Location: Ft. Worth, TX . USA
Posts: 59

An electric choke will not work if it is not wired to a 12 volt source. Once it is hooked up you will need to adjust it by loosening those 3 little bolts and rotating the choke to the proper position. Sounds like you need to rotate it clockwise, BY SMALL INCREMENTS, like an eigth of an inch at a time. Look on the choke housing and you should see some lines and a corresponding "pointer" line that will aid you in this process. Also note, a choke needs to be cold to be set properly. In this 90 degree Texas heat we have right now you better do this early am before the engine warms up. [img]graemlins/waving.gif[/img]

Randy<br /><br />My dream car is never quite finished....<br />I keep running out of money!!
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post #4 of 4 (permalink) Old May 11th, 03, 10:22 PM
Senior Tech
Join Date: Nov 2002
Location: Aiea, Hawaii
Posts: 571

Ah ha all Texans ehhh. Good luck with the choke adjustments. When at Ft Hood I remember sweating walking outside for PT at 6am in the summer. You better work quick before summer sets in. I remember a while back a member had a window shatter in his garage. I ended up figuring it was a case of rolling the window up tight when the car was at a different attitude with the body flexing differently so the window tightened up even more when he parked it level. Oh well take care of that heat in Texas. I remember lots of windows shattering in Ft Hood parking lots from the heat.
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