Join Date: Jan 2015
Location: Ottawa, Ontario, Canada
The LCT 414 engine on my machine initially ran at 3,500 rpm and the impeller at about 1,040 rpm, but the spec is 3,600 +/- 100 rpm for engine and 1,083 rpm for the impeller. I increased engine rpm to 3,700 (top of stock spec) and the impeller rpm rose to 1,100 rpm. The most obvious improvement was in blowing the very wet slop (little snow and a lot of water) at the EOD without clogging. It does throw snow a little farther, but hard pieces of "ice" are thrown a lot farther so in an urban setting I have to be careful where the chute is pointed. I was going to increase the engine auger pulley from 2.75" to 3" but the dual pulley configuration is too difficult for me to carry out that change.
The Ariens impeller is not wide enough to fill the 5" discharge opening with snow, so I widened the impeller at the end of last season and that improved the snow discharge volume. Engine speed is maintained under all conditions, so I am happy with all the changes.
2015 Ariens Platinum 30 SHO - model 921040