Bunton Guy
01-02-2010, 07:40 PM
I've noticed a overnight issue with one of my redmax 8000 blowers. Its on its second season and one day we went to start a large leaf cleanup and the blower started loosing power really bad on a lawn this was after just over an hour of straight blowing which isn't uncommon for our blowers during leaf season.
It sounded like someone was "strangling" the motor....choking off the air and exhaust supply almost. Hard to explain what it sounded like but it went from wide open throttle to lower and lower throttle without actually moving the throttle...it was full of clean fuel mixed at 50:1 89 octane mixed with Lucas semi-synthetic oil.
After we shut it off to grab a spare blower we tried starting it a couple hours later and it wouldn't start. Let it sit for a couple days in the shop and now it starts just fine but has a really weird "straining" sound like its having a hard time keeping up with a slight sound of a hi resonance vibration. We tore it took a look at it later that night in the shop and nothing seemed loose. Took the muffler off and it was as clean as a whistle....blew it out and soaked it for a couple days in the parts washer then cleaned it off again and blew it out and let it dry. Still no difference in performance it still feels to be down 30% on power and still has that straining sound to the motor.
Could it have scuffed a cylinder from running to long without a break? We've gone 2-3hrs. straight with no breaks on this blower before with no issues till recently.
It sounded like someone was "strangling" the motor....choking off the air and exhaust supply almost. Hard to explain what it sounded like but it went from wide open throttle to lower and lower throttle without actually moving the throttle...it was full of clean fuel mixed at 50:1 89 octane mixed with Lucas semi-synthetic oil.
After we shut it off to grab a spare blower we tried starting it a couple hours later and it wouldn't start. Let it sit for a couple days in the shop and now it starts just fine but has a really weird "straining" sound like its having a hard time keeping up with a slight sound of a hi resonance vibration. We tore it took a look at it later that night in the shop and nothing seemed loose. Took the muffler off and it was as clean as a whistle....blew it out and soaked it for a couple days in the parts washer then cleaned it off again and blew it out and let it dry. Still no difference in performance it still feels to be down 30% on power and still has that straining sound to the motor.
Could it have scuffed a cylinder from running to long without a break? We've gone 2-3hrs. straight with no breaks on this blower before with no issues till recently.