Posted by Al L. in Wisc. on March 02, 2014 at 12:17:35 from (216.226.94.245):
In Reply to: 460 carburetors posted by SALTY on March 01, 2014 at 14:25:17:
="SALTY"; tell us, did you have any such problems before the overhaul?
You may have already done this but,
* check the from the factory 'in-line' cylindrical screen that should be slid in the end of the fuel line that goes into the carburetor.
* check the tank for any debris that could find a way to intermittently float into the intake at the bottom of the fuel tank. From personal experience with my Farmall 460 gas; last summer I had hauled a load of brush, a few miles to a dump site and upon returning the engine would only run and poorly so, with full chock; suddenly run a few feet and repeat. Took over an hour to go a few miles. I had to check more than once and with differing light and finally was fortunate to find a 'floater' that would obstruct the little opening at the tank bottom. I suppose oft times it was hidden from my view by the fuel gauge sending unit. I'm gonna post what I have a few times; maybe you have this info; maybe others will see it also. Please post back your findings - results. Good luck.
Adjusting the carburetor
McCormick Farmall and International 460 � 560
per the Preventative Maintenance Manual dated 6-20-58
"The engine and carburetor are correctly set when shipped from the factory...Start the engine and allow it to operate until thoroughly warm before making any adjustments.
... with the engine thoroughly warm, turn off. Close the [top needle] idle adjusting screw to its seat; then open one turn. The [bottom adj. screw] main fuel adjusting screw can be used to reduce the amount of fuel going into the engine when under light load conditions. However, when heavy work is to be performed in which the FULL POWER of the engine IS REQUIRED, the fuel adjusting screw should be set five turns off its seat. With the engine running at fast idle, turn in the throttle stop screw a few turns to prevent the engine from stopping when the throttle is closed. Start engine, close the throttle by pushing the engine speed control lever all the way up. [I like the way they worded that.] The throttle stop screw can be backed out until the desired idle speed (approximately 425 r.p.m.) is obtained. If the engine misses or rolls, the idle adjusting screw may be adjusted either in or out until the engine operates smoothly.
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