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6 Posts
Hi guys,
I'm trying to figure out what's up with this snowblower (Husky Snowking) I just got from a friend of mine. I used it a few years back and it was a totally different machine back then. it's a 2 stage 5 hp Tecumseh LH195SA, spec 67419V. the thing has no power under load anymore. runs just fine without a load, starts on the second pull, no misses or backfires. i thought it was the governor, but after inspecting it and adjusting it to spec according to the engine manual the gov seems to be functioning just fine. as soon as the engine starts to slow down i can watch the gov arm push the throttle plate wide open. the engine just doesn't respond to the wide open throttle. instead it just continues to die out until you remove the load when it then throttles back up. put it under load again and you get the same thing. i checked the compression and it's reading about 90 psi, which sounds about right to me, though i haven't found a spec anywhere to confirm this. i've cleaned the carb multiple times but it still does it. I replaced the belts on both the auger and the drive wheels and adjusted the cables to make sure it's engaging both properly. it has no trouble driving the machine forward (or backward for that matter) but i can't really tell if the augers are turning as fast as they used to. when the machine is throwing it seems to throw the snow just fine. I'm wondering if the worm gear in the forward gear box is worn and it's just choking on snow because it can't clear the chute fast enough, but i tried to test that theory by putting the machine against a wall with the auger disengaged and put it in gear and really tried to bear down on the wheel to see if the load from the drive system could bog the motor down. even with me bearing down on the handles the wheels just kept spinning and i couldn't get the motor bog. if i spin the auger drive pulley by hand the tines move as expected. trying to spin the tines themselves by hand I can't do it so i don't think the worm gear is sheared.
this thing used to clear 20+ inches of packing snow (albeit in 1st gear but it cleared it without any problems) and now it struggles to throw 6 inches of fine power. I'm about ready to pull the trigger on a whole new carb in hopes that there's a passage in there that I just can't get clear but I'm hoping someone can point me in the right direction. any help would be appreciated.
I'm trying to figure out what's up with this snowblower (Husky Snowking) I just got from a friend of mine. I used it a few years back and it was a totally different machine back then. it's a 2 stage 5 hp Tecumseh LH195SA, spec 67419V. the thing has no power under load anymore. runs just fine without a load, starts on the second pull, no misses or backfires. i thought it was the governor, but after inspecting it and adjusting it to spec according to the engine manual the gov seems to be functioning just fine. as soon as the engine starts to slow down i can watch the gov arm push the throttle plate wide open. the engine just doesn't respond to the wide open throttle. instead it just continues to die out until you remove the load when it then throttles back up. put it under load again and you get the same thing. i checked the compression and it's reading about 90 psi, which sounds about right to me, though i haven't found a spec anywhere to confirm this. i've cleaned the carb multiple times but it still does it. I replaced the belts on both the auger and the drive wheels and adjusted the cables to make sure it's engaging both properly. it has no trouble driving the machine forward (or backward for that matter) but i can't really tell if the augers are turning as fast as they used to. when the machine is throwing it seems to throw the snow just fine. I'm wondering if the worm gear in the forward gear box is worn and it's just choking on snow because it can't clear the chute fast enough, but i tried to test that theory by putting the machine against a wall with the auger disengaged and put it in gear and really tried to bear down on the wheel to see if the load from the drive system could bog the motor down. even with me bearing down on the handles the wheels just kept spinning and i couldn't get the motor bog. if i spin the auger drive pulley by hand the tines move as expected. trying to spin the tines themselves by hand I can't do it so i don't think the worm gear is sheared.
this thing used to clear 20+ inches of packing snow (albeit in 1st gear but it cleared it without any problems) and now it struggles to throw 6 inches of fine power. I'm about ready to pull the trigger on a whole new carb in hopes that there's a passage in there that I just can't get clear but I'm hoping someone can point me in the right direction. any help would be appreciated.