The McCulloch 4600 carburetor is designed to take gasoline [liquid state] and atomize the fuel with air in the proper proportion to power the chain saw motor. If the carburetor gets damaged, gummed up, or contaminated with water causing white rust [white powder substance], the McCulloch 4600 carburetor will need to be replaced. We offer suitable replacement McCulloch 4600 carburetor parts for sale that meet or beat OEM specifications with our Fast Shipping below. |
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Suitable Replacement McCulloch 4600 Carburetor PartsThe McCulloch 4600 carburetor has two different sides. First, the fuel pump side of the carburetor pumps fuel from the fuel tank through the fuel line to the metering side of the carburetor. Second, the metering side of the carburetor supplies fuel to the jets in the carburetor so the saw idles properly. Additionally, this side allows the saw to accelerate to full throttle instantly when the throttle is activated [pulled]. Finally, this side maintains fuel to the chain saw motor at full throttle regardless of the position of the saw. Michael vick. The carburetor has diaphragms and gaskets to help it pump and meter the fuel by crankcase impulse. Every time the piston goes up and down, it creates vacuum and pressure in the crankcase. The McCulloch 4600 carburetor uses this pulse via a pulse line connected to the crankcase or through the carburetor intake to get the pulse needed to properly make the carburetor function. On the metering lever side of the McCulloch 4600 carburetor, there is a diaphragm and gasket with a cover plate screwed to the carburetor. The metering diaphragm controls the amount of fuel allowed to enter the metering lever side of the carburetor. The diaphragm is either connected or just touching the fulcrum [meter lever] and when fuel exits the metering side of the carburetor through the jets in the carburetor, atmosphere pressure [14.7 psi] pushes the diaphragm in letting more fuel in. As the fuel rises to fill the metering lever side of the carburetor, the inlet needle valve closes the fuel off from the fuel pump side of the carburetor. The needle valve goes into the body of the McCulloch 4600 carburetor and is fastened to the metering lever fulcrum which has a spring under the opposite side of the needle valve to keep pressure on the needle valve when closed. On the metering lever side of the McCulloch 4600 chainsaw carburetor there are two sides, a low side and a high side. The low side controls idle and acceleration when the saw starts to rev up. The high side controls the amount of fuel the saw will receive at full RPM. Some carburetors will have 2 adjusting screws, one for the low side and one for the high side. There is also an idle screw which makes contact with the throttle shaft to control idle speed along with the low side of the carburetor. Note that some chainsaw model carburetors have just one adjusting screw and the other side is prefixed and non-adjustable. Some may also have no adjusting screws [except the idle screw] to preset or pre-jet the carburetor. Important Notice - We are not affiliated with any chainsaw manufacturers and we do not attempt to make any affiliations with them. Any manufacturer logos, model names and numbers are the sole property of their respective owners and are used here for the sole purpose of reference. We do not sell OEM chainsaw parts for any brand. We do however, offer high quality suitable replacement parts guaranteed to meet or beat OEM part specifications like our suitable replacement Chainsaw McCulloch 4600 Carburetor parts we offer for sale for you to buy and put into their brand of chainsaws. |
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From inside (document excerpt):
Mac 4600 Chainsaw Manual Parts
46 / 49 / 55cc GASOLINE POWERED ANTI-VIBRATION (AV) CHAIN SAWS MODEL NAME MS1846AV MS2046AV M1849AV MS2049 MAC 4600 MAC 4600 MAC 4600 MAC 4600 MAC 4600 MAC 4600 MAC 4900 MAC 4900 MAC 4900 MAC 4900 MAC 4900 MAC 5500 PM1846AV PM2046AV PM1849AV PM2049AV PROMAC 4700 PROMAC 5000 PROMAC 5500 SILVER EAGLE 2818 SILVER EAGLE 3020 TIMBERBEAR 20 TIMEBERBEAR ()SERIAL NUMBER PREFIX – MODEL NUMBER 600465-00 600465-01 600465-02 600465-07 600465-09 600465-12 600498-01 600498-02 600498-03 600498-08 600498-13 600555-00 600465-03 600498-20 600555-02 BAR & CHAIN ENGINE SIZE 46cc 46cc 49cc 49cc 46cc 46cc 46cc 46cc 46cc 46cc 49cc McCulloch products are identified by a model number (in this instance 600465) followed by a suffix number (00).
Mac Chainsaw 3200
Suffix numbers denote variations in parts or assemblies used in the manufacture of this product. Illustrated Parts Lists (IPLs) contain a PART NUMBER, DESCRIPTION, UNITS per assembly and STOCKING CODE for each part. Stocking Codes are: A – Dealer stocked. Fast to medium moving part. B – Distributor stocked. Medium to slow moving part. C – Factory stocked. Slow moving part. NOTE: (-) The following explains symbols and footnotes in this IPL: A dash preceding a PART NUMBER indicates that it is a new part number, different from the one listed in the previous IPL for this unit. One or more dots (. Spring, Starter) preceding a part DESCRIPTION indicates the part is included in the kit or assembly described directly above the dot(s). If four dashes appear in place of a PART NUMBER, the part is not available individually but is included in the next higher assembly or subassembly. Circled numbers preceding a DESCRIPTION footnote the part or assembly to additional information on the page. An asterisk denotes that choices follow or precede. Serial Number Prefix 21- denotes CARB approved unit — all parts are interchangeable with Serial Number Prefix 11-. 20 49cc 49cc 49cc 49cc 55cc (.) (– –) 18 20 18 20 46cc 46cc 49cc 49cc ¿¡ (*) 55cc () 22- 600555-01 20 49cc 55cc MARCH 2003 The policy of McCulloch is one of continual improvement in design, manufacturing and engineering advancement wherever possible to assure still finer power tools. Hence, specifications, equipment colors, design and manufacturer's suggested list prices are subject to change without notice. McCulloch reserves the right to make such changes without prior notification or obligation to backfit or supply backfit components for units previously shipped from the factory.
