How to rebuild a Rochester Quadrajet 4MV carburetor
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| − | = | + | =Planning and Organization= |
| − | ''The | + | ''The Planning and Organization section is currently under construction. Please refer to the threads and links under '''Recommended Resources''', which will serve as the basis for this section'' |
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| − | === | + | ===Carburetor Identification=== |
| − | + | :'''''Stamped Identification Number''''' - Necessary for ordering correct rebuild kits and parts. The number is usually found either as a tag or as a stamping in the body on the driver-side of the carburetor, running vertically up and down.''^1'' | |
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| − | : | + | :It is not uncommon for confusion to arise when decoding a Quadrajet carburetor. According to [http://www.recarbco.com/technical/rochester/qjet.html Recarbo Fuel Systems]: |
| + | ''<blockquote>"This guide is just that: a guide. It is not set in stone, because it is a documented fact that Rochester didn't follow [http://www.recarbco.com/technical/rochester/qjet.html these rules] 100%. It is for Quadra-jet carburetors only. Rochester also had different numbering systems for their other carbs besides the Quadra-jet. Our thousands of pages of information on this comes straight from Rochester.</blockquote>'' | ||
| − | + | ''<blockquote>Keep in mind that just because the OEM numbers between two carbs may be different, it doesn't mean they are different carbs. It's very possible to have two carbs, their date is 2 years apart, one is for Buick and one is for Chevy Truck, and one is for automatic, the other for stick, and the carbs are identical in every single way, even down to the jets and metering rods. It's much more common than you might think. Also, many people think they have to have a carburetor with a certain exact OEM number. This can sometimes be very very hard. Most people don't have to have this, they really only need a carburetor that crosses over the same and is identical. You realistically only need an exact OEM number if you are restoring a car back to original condition to enter into a car show."</blockquote>''^1 | |
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| + | :'''''Sources for Identification''''' | ||
| + | :''[http://www.cliffshighperformance.com/tech_carb_ID_2.html Carburetor Designation/Identification]'' - Covers casting designations and identification numbers. | ||
| − | + | :''[http://www.recarbco.com/technical/rochester/qjet.html Recarbo Fuel Systems]'' - ''"This guide is just that: a guide. It is not set in stone, because it is a documented fact that Rochester didn't follow these rules 100%."'' | |
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| − | : | + | ===Parts=== |
| + | : '''''Carburetor Rebuild Kits''''' | ||
| + | : '''''Individual Parts''''' | ||
| − | + | : '''''Sellers / Sources''''' | |
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| − | + | ===Tools=== | |
| + | :'''''Tools''''' | ||
| + | :#Parts Organizer | ||
| + | :#Screwdrivers | ||
| + | :#Parts cleaner dip | ||
| + | :#Parts cleaning tray | ||
| + | :#Parts cleaning brush | ||
| + | :# Shop towels / rags | ||
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| + | :'''''Digital Camera''''' | ||
| + | :A digital camera with a good flash will come in very handy. There is no need for a top of the line camera. Even today's cellphones with 5 megapixel or higher rating are more than sufficient. Become familiar with the camera you have and use it to photograph everything, from every angle, every step of the way. If you ever get lost during the rebuild process, you only need to flip through a few pictures to get back on track. Remember, with a digital camera, there are no limitations on how many pictures you take because you are not using film. And when you upload your pictures, be sure to organize them into folders and sub-folders with useful categories for titles, i.e. ''Removal'', ''Disassembly'', etc. | ||
| − | + | :It is also a good idea to use a photo editor for processing images. Quick cropping, sharpening and brightening of photos will turn many mediocre shots into useful images. For a free and easy to use photo editor, [http://www.photoscape.org/ps/main/index.php Photoscape] is recommended. [http://www.gimp.org/ GIMP] is another one, but with more sophisticated features. | |
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| − | ::'' | + | :'''''Books / Guides / Websites''''' |
| + | :'''''"How to Rebuild and Modify Rochester Quadrajet Carburetors"''''' by Cliff Ruggles is a frequent recommendation by the members of [http://www.hotrodders.com Hotrodders]forum. It is a highly-reviewed books and the author is considered a leading authority on Qudrajet carburetors. | ||
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| − | :::#Goggles | + | :In addition to his book, Cliff Ruggles also maintains a website ([http://www.cliffshighperformance.com/ Cliff's High Performance]), with a forum dedicated to discussing carburetors. |
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| + | :Other titles devoted to Rochester Quadrajets are also available from retailers such as [http://www.barnesandnoble.com/ Barnes and Noble], [http://www.amazon.com Amazon], [http://www.ebay.com eBay] and its sister site [http://www.half.com Half.com]. | ||
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| + | ===Safety=== | ||
| + | |||
| + | :'''''Ventilation''''' | ||
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| + | :'''''Lighting''''' | ||
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| + | :'''''Protection''''' | ||
| + | |||
| + | ::#Goggles | ||
| + | ::#Gloves | ||
| + | ::#Clothing | ||
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| + | =Procedures= | ||
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| + | ''The Procedures section is currently under construction. Please refer to the threads and links under '''Recommended Resources''', which will serve as the basis for this section'' | ||
====Removal==== | ====Removal==== | ||
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==Reference== | ==Reference== | ||
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