Gary S Minnesota 62 #1 Posted 5 hours ago Hey Folks, I picked up a nice 1977 C160 two years ago and finally have it purring sweetly. I ultrasonically cleaned the carb, replaced the fuel lines and pump and finally installed new points, condenser and coil. ( later found the old coil was fine). My question now involves the hydro unit.. It seems to have plenty of power, easily lifting the mounted 2 stage snow thrower. What puzzles me is that when the hydro lifts the blower, the engine RPM drops a bit. The RPM then stays at this lower speed until the the blower is lowered again relieving the load. Is this normal for a Sunstrand unit? Just curious? My 520 H with the Eaton 110 will also lose a bit of RPM when lifting but the RPM quickly returns to normal once the up lever is released and the load remains in the up position. Share this post Link to post Share on other sites
