C
Capt. Rick Stallard
Guest
" Recently repowered 28' T
" Recently repowered 28' Topaz Sport Fish with new 5.7 Vortecs from Crusader. The CW (starboard)engine will not turn over 2600 rpm's w/o violent backfiring. The backfiring will occur at 25-2600 when the engine is put in a strain or loaded up, (hard turn, strong current, or change in trim load). Have swapped carburetors from port to starboard as well as plug wires,rotor and cap. Replaced fuel line from pickup tube to filter just ahead of pump as well as switched the pickup lines at the tank in the event there was an obstruction or "leak" in the pickup tube inside the tank. Have replaced plugs (AC #8's) three times, replaced coil and set timing at both 6 (recommended) and 10 degrees BTDC. Am to the point now of looking into the valve train, lifters, springs, valves, etc... but hate to pull valve covers or heads while under warranty although I have been unable to get any help from Crusader or the distributor who sold me the engines. By the way, they are equpped with Mallory breakerless distributors, and ballast resistors have been installed. Any help greatly appreciated. "
" Recently repowered 28' Topaz Sport Fish with new 5.7 Vortecs from Crusader. The CW (starboard)engine will not turn over 2600 rpm's w/o violent backfiring. The backfiring will occur at 25-2600 when the engine is put in a strain or loaded up, (hard turn, strong current, or change in trim load). Have swapped carburetors from port to starboard as well as plug wires,rotor and cap. Replaced fuel line from pickup tube to filter just ahead of pump as well as switched the pickup lines at the tank in the event there was an obstruction or "leak" in the pickup tube inside the tank. Have replaced plugs (AC #8's) three times, replaced coil and set timing at both 6 (recommended) and 10 degrees BTDC. Am to the point now of looking into the valve train, lifters, springs, valves, etc... but hate to pull valve covers or heads while under warranty although I have been unable to get any help from Crusader or the distributor who sold me the engines. By the way, they are equpped with Mallory breakerless distributors, and ballast resistors have been installed. Any help greatly appreciated. "