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ChadS
02-24-2008 05:35:15
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Re: M governor weights in reply to LN, 02-24-2008 04:26:47
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If you look at the weight itself, you will see what I call, casting flash. Its a line left over from the mold,,, I usually cut them down to that line, and its about half the weight,,, lighter weights VS heavy weights,, 2 weight of 4 weight governors are two diferent setups,, or can be atleast,,,, LOL
2 weight governors let you run the higher rpm ranges with less headaches,,, easier to setup,, easier to tune. More likely a great all around governor,,,, up to 25% over rpm. 4 weight governors, Im no fan of,,,,, but if you run a 10% rpm class,, they do hold the rpm, but its not as easy to tune when you are looking for much over 15% over rpms,,,, they surge when trying to set them up for the higher rpm operation. but put em back to their working operation and they do alright,,, from what I see on the dyno,, they will go over the set rpm, then settle down by dropping the rpm back down a few,,,, 2 weight governors will stay the same, or to what ever you set em to,,,,,
Lighter weights can allow faster operation. with less mass, the governor is allowed to rap up faster in responce time, opening and closing the carb at a faster pace, good for engines with a little more compression, and can use an upgrade to wake it up a little more. the magic spring, increases the spring tension on the weights,,,, the weights have to work harder to force the carb to shut down, so it does operate faster, and keeps the carb held open for a longer period of time. The weights cant overcome the spring tension and still holds the carb open,,,, where in stock parts,, the carb butterfly will close upon rpm drop when under a load that is close to, or stalling the engine during the pull, or in any hard work situation. So it actually closes the carb in stock form,, you dont want this to happen!!!!
What your looking for is consistancy in rpm management, a faster responding governor is a sensitive governor, a slow reacting governor can be sensitive, but sluggish in responce time. Some want that sluggish responce, most dont, but I like a governor that can go beyond its ranges and allows me, as a driver to drive it by the throttle. Over time, the difference between the stock setup, a hopped up 2 weight, or a good 4 weight governor can be clear as day. Experiment is all I can say to try!! But make sure the pins are good, make sure there is no binding, and make sure the carb jets are large enough to compensate for faster responce time,, 99.9% of the tractors I do governor work to, I have to rejet the carb larger to keep up with the rpm responce time improvement. (hope this makes sence) ChadS [email protected]
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