The best value choice. The 1000PXi SERIESā„¢ engine family is Briggs & Stratton's most powerful small vertical shaft line of engines for lawnmower applications. These engines utilize Over Head Valve (OHV) technology, which runs cooler and cleaner - delivering more power, longer engine life and improved fuel economy. 36. Messages. 9,587. May 8, 2013 / Head Torque specs for Broggs OHV 17HP. #2. I looks like the torque spec has recently changed. the new torque spec is 250 in/lb. with torque tightened in thirds. Start at bottom center, then top center, below spark plug, then top right, bottom right, top left, bottom left, then above spark plug. The Briggs and Stratton 44P777 is a 724 cc (44.2 cuĀ·in) V-twin air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. The B&S 44P777 engine has an OHV (overhead valve) design and a vertical PTO shaft. This engine is equipped with float type carburetor and an electronic ignition system. Torque requirement on 19.5hp briggs (model below) Model 31p677-0912-g5 Briggs & Stratton Iā€™m putting the sump (bottom case) back on and want to know the torque Iā€™m supposed to use on the bolts? Install and torque screw (H) to value listed in Section 12 - Engine Specifications. NOTE: Rotate counterweight assembly to check for binding. If binding exists, loosen and retorque screw. Check again for binding. Contrary to what it says, Engine Spec section does not list the torque spec for that bolt. Briggs & Stratton 342cc 1550 Seriesā„¢ Industrial/Commercial Horizontal Engine produces 15.5 ft.-lbs. Gross Torque to get the job done. Great replacement engine for tillers, log splitters, compressors, pressure washers and blowers. Hello - I have a Toro modedl 20331 lawn mower with a Briggs and Stratton model 124T02-0203-B1 engine. The engine was run dry at one point and the connecting rod failed damaging the block. A new engine ā€¦ read more All Briggs & Stratton engines are sized in cubic centimeters (cc) and will be rated in one of the power ratings* below. -Horsepower (HP) is the amount of raw potential an engine can generate. HP ratings are stated as gross horsepower at 3600 RPM per SAE J1940 as rated by Briggs & Stratton. -Kilowatt (kW) is the metric equivalent of Horsepower. Tighten cylinder head bolts in order shown. Tightening torque: 36.1 ft. lbs. (49 Nm, 5 kg-m) Loosen bolts in reverse of order shown. Retighten cylinder head bolts in order shown. Tightening torque: 18 ft. lbs. (25 Nm, 2.5 kg-m) Mark cylinder head bolts for rotational reference. Rotate cylinder head bolts 90Ā° (1/4 Turn) in order shown. 993cc. Count on this Vanguard BIG BLOCKā„¢ V-Twin EFI engine for high-performance power in all conditions and lower operating costs. Designed with debris- and air- management features that enhance durability and performance, plus an oil system that improves lubrication, maximizes engine life and extends oil change intervals. NKigp68.