![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
![]() |
#1 |
Registered User
Join Date: Mar 2005
Location: Just outside Durham, NC
Posts: 894
|
proper carb adjustment steps
For those of you following my previous saga, my rebuilt economaster carb is on now on my truck and running very well, but I am having difficulties adjusting the carb, the holley manual is not very helpful (it references smog equipment that my truck obviously does not use).
I have tried to set the idle using the idle screw on the throttle level, when it starts it runs at 2k, if I turn it down it won't make much change until it gets to a point where it will stall out. I thought maybe I needed to wait until the engine was warm, so I waited until the engine hit operating temp, turned down the idle screw, and got the engine to just below 1k....but if I rev up the engine a couple of times, when it goes back to idle, it sits at between 1,600 and 2,000 rpm again. I thought maybe I needed to adjust it via the mixture screws from there....and I seem to be chasing my tail.....what are the proper steps to set the idle and mixture screws????
__________________
1969 SS 350 Camaro Sold 2008 1970 3/4T K20, stock height with 33's, 250 I6, 3 on the tree, and locked front and rear 4.10's ![]() 1980 Chevy Malibu 2 dr Sold 2007 1993 Olds. Cutlass Ciera Wagon Traded 2006 2003 Saturn L200 w/5pd. D/D My list spans 5 decades with One common thread.....GM! |
![]() |
![]() |
![]() |
#2 |
Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
|
Re: proper carb adjustment steps
man if it was not for bad luck you would not have any luck at all...
![]() sounds like my luck as of late.. please don't take this personal. all info to follow is just my opinion... sounds like your still dealing with a leak at the intake runner or with the carb it self. or the spacers you got the carb mounted with. this is what makes the carb idle all over the place. with the spacers and this carb you got..o-boy me , i am done with holley carbs. nuf said.. your going to have to start with a process of elimination. starting at the intake runners..re-tighten again. make sure you got the gaskets installed correct. i would mount a correct carb..even a 2300 500 cfm holley carb would be better than the economaster carb. what ever it takes to get rid of the spacers. i am the nicest guy in the world. and am only trying to lead you in the right direction. and i have read some of your other post and see your pulling your hair out here, trying to get this bad boy running correctly. the problems you have right now..are more than a adjustment on the carb. this i can say with 100% confidence. your pal mark |
![]() |
![]() |
![]() |
#3 |
A little east of nowhere
Join Date: Feb 2006
Location: LaBroquerie,Manitoba Canada
Posts: 168
|
Re: proper carb adjustment steps
![]() Karl
__________________
68 C10 250 4spd 69 C20 327 4spd 69 910 250 3spd 80 K10 350 4spd 76 C60 366 5spd school bus "THERE'S NOTHING YOU CAN BREAK THAT SOMEONE CAN'T BE PAID TO REPAIR" Last edited by Karl Hoh; 06-03-2006 at 02:57 AM. |
![]() |
![]() |
![]() |
#4 |
Registered User
Join Date: Dec 1999
Location: Northwest NJ
Posts: 746
|
Re: proper carb adjustment steps
|
![]() |
![]() |
![]() |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|