How to rebuild a Rochester Quadrajet 4MV carburetor
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Throttle return springs used as shown below should be avoided: | Throttle return springs used as shown below should be avoided: | ||
[[File:Throttle return bad.jpg|thumb|800px|left|Bad throttle return spring orientation]] <br style="clear:both"/> | [[File:Throttle return bad.jpg|thumb|800px|left|Bad throttle return spring orientation]] <br style="clear:both"/> | ||
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| + | The secondary throttle shaft rarely ever need bushings; even brand new there's quite a bit of clearance between the shaft and throttle plate. If the secondary shaft/throttle plate bore so bad that bushings are needed, the rest of the carb is likely worn very badly; another core or at a least another throttle plate should be considered. | ||
=====No drilling/Teflon bushing fix===== | =====No drilling/Teflon bushing fix===== | ||
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If the ends of the screws look too long, they can be ground down with a dremel or small file to the approximate length of the stock screws before peening them. | If the ends of the screws look too long, they can be ground down with a dremel or small file to the approximate length of the stock screws before peening them. | ||
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=====Cleaning orifices===== | =====Cleaning orifices===== | ||
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