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Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

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Old 11-16-2009, 10:37 AM   #1
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Lubricating the throttle shafts?

Would it be at all beneficial to lubricate these? Harden steel on aluminum doesn't seem like a long lasting relationship to me. i have 1 of 3 things that i could possibly uses or that i think would work. lanthanum grease, Mobile one synthetic grease, and polyurethane bushing grease which i doubt would work because its pretty sticky. i want to see if anyone had some input or could elaborate on this
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Old 11-16-2009, 02:47 PM   #2
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That green color is from a Teflon coating.

Lubrication not recommended due to the tendency to attract dirt.
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Old 11-16-2009, 03:02 PM   #3
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Re: Lubricating the throttle shafts?

your right,but it "holds" dirt, rather than attract it. BUT i think its safe to use on throttle body shafts BECAUSE there should be NO presence of dirt anyway...its filtered.
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Old 11-16-2009, 06:33 PM   #4
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Okay, "hold".

But, there is a slight leakage from outside to inside around the shafts, which does "attract" dirt, and isn't filtered.

BTW, we are talking about a q-jet, right?
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Old 11-16-2009, 07:07 PM   #5
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Re: Lubricating the throttle shafts?

shouldnt there be some air tight "o-rings" of some sort placed inside the throttle body housing to keep outside air from leaking into the "main stream" of air?? if not, then it would make a maf sensored car under perform, if not have drivability issues..

and idk if hes talkin bout a quadjet lol, iv been picturing a tpi setup in my mind the whole time. haha
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Old 11-16-2009, 08:41 PM   #6
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Quote:
Originally Posted by cIaRmOaCrZo View Post
shouldnt there be some air tight "o-rings" of some sort placed inside the throttle body housing to keep outside air from leaking into the "main stream" of air?? if not, then it would make a maf sensored car under perform, if not have drivability issues..
No, there is not. What little leakage there is past the shafts (very little, but enough to bring dirt with it) is compensated for in the tuning. A computer controlled carb would compensate for it automatically.

Quote:
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and idk if hes talkin bout a quadjet lol, iv been picturing a tpi setup in my mind the whole time. haha
And what forum are we in here?????
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Old 11-16-2009, 08:48 PM   #7
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Re: Lubricating the throttle shafts?

ahh i see. and haha i just noticed that its a "carburated" forum. oops lol
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Old 11-16-2009, 09:08 PM   #8
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Re: Lubricating the throttle shafts?

talking about a edelbrock 4bbl 600cfm carb
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Old 11-16-2009, 09:22 PM   #9
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Quote:
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talking about a edelbrock 4bbl 600cfm carb


Look through Edelbrock's owner's manual, find the part about "lubricating the throttle shafts" and get back with me. . .
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Old 11-16-2009, 09:24 PM   #10
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Quote:
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Harden steel on aluminum doesn't seem like a long lasting relationship to me.
BTW, that is the "right" way to reduce wear, hard on soft. Think crank bearings (which, admittedly, are lubricated - but that's beside the point).
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