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10-19-2002, 02:18 PM
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#1 |
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Seasonal Poster
Join Date: Apr 2002
Location: Kelowna BC Canada
Posts: 896
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idle too high
i recently got a new carb, got it running fine after some work, except for the fact that it idles around 900rpm, and that is really annoying...i turned down the idle screw and it doesnt really do much...but i found if i just pull back on the throttle arm a little it will idle where its supposed to...now it has a return spring on there, and it seems tight, but i was wondering if maybe i could get a new one and it would fix it? or do you think its something else?
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67 GMC Short Step 350/4-Speed/3.08 Posi Front/Rear Sway Bars Kelowna BC, Canada Member of DTPW |
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10-19-2002, 02:35 PM
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#2 |
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huh?
 
Join Date: May 2000
Location: Washington, Illinois
Posts: 5,690
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If it's a quadrajet, there are actually 2 idle screws. I know there's one up by the front of the carb, and the other is somewhere down towards the bottom....I know it doesn't help a whole lot....but at least you know it's there now...
Good luck, TJ
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Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay |
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10-19-2002, 02:43 PM
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#3 |
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Seasonal Poster
Join Date: Apr 2002
Location: Kelowna BC Canada
Posts: 896
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its a carter AFB...forgot to mention that, and i have the mixture screws set all nicely
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67 GMC Short Step 350/4-Speed/3.08 Posi Front/Rear Sway Bars Kelowna BC, Canada Member of DTPW |
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10-19-2002, 02:44 PM
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#4 |
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huh?
Join Date: May 2000
Location: Washington, Illinois
Posts: 5,690
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I have one of those....good choice....let me go look at it, I'll check back in a few.
TJ
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Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay |
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10-19-2002, 02:48 PM
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#5 |
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Senior Member
Join Date: Dec 2001
Location: Redding,CA...USA
Posts: 4,736
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did you try adjusting the linkage?????
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It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA |
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10-19-2002, 02:49 PM
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#6 |
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huh?
Join Date: May 2000
Location: Washington, Illinois
Posts: 5,690
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Well, my only guess now, would be that your choke is on just a hair, and the carb is stuck on the high idle cam. There's a screw under the throttle arm to adjust that, have a look, and try to maybe turn it out a hair....
Good Luck, TJ
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Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay |
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10-19-2002, 02:51 PM
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#7 |
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huh?
Join Date: May 2000
Location: Washington, Illinois
Posts: 5,690
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well duh for me....it's a 67.....guess I should pay more attention
 Good call bigjim, yeah, do what he said too, lol TJ
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Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay |
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10-19-2002, 02:51 PM
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#8 |
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Seasonal Poster
Join Date: Apr 2002
Location: Kelowna BC Canada
Posts: 896
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which way would i want to adjust the linkage? like make it shorter or longer?...and that screw, ive tried that one before, but the arm doesnt quite make it to touching it....like something is holding it away from the screw
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67 GMC Short Step 350/4-Speed/3.08 Posi Front/Rear Sway Bars Kelowna BC, Canada Member of DTPW |
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10-19-2002, 02:53 PM
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#9 |
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Seasonal Poster
Join Date: Apr 2002
Location: Kelowna BC Canada
Posts: 896
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whoa i just got 100 posts....but i dont know what to put for an avatar yay!
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67 GMC Short Step 350/4-Speed/3.08 Posi Front/Rear Sway Bars Kelowna BC, Canada Member of DTPW |
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10-19-2002, 10:47 PM
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#10 |
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Registered User
Join Date: Jan 2001
Location: Killingworth, CT. USA
Posts: 3,378
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Also check for a vaccum leak, this would give you a unwanted fast idle. Spray the area with some carb clean or w-d40 while the engine is running, when you hear the engine rpms change you've found a leak.
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1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist. |
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