New guy here, 13 1/2 hp B&S no compression
- Thread starter Dryan
- Start date
Have been cleaning the old gasket off the bottom part of the engine.
I took the existing piston off the rod and about to install the new one, what is the arrow on top the piston for?
I see there is a arrow on the bottom and the top of the piston. I'm not familiar with "MAG markings" , bbut there is a mark in the rod shown in picture at the top, is that it?
The arrow on top of the piston is the one shown in the service manual, and briggs says the MAG should be in the recessed area of the rod. If you remember the orientation of the rod to the old piston, it should be installed the same way.
Yes, I made some scratch marks on the piston and the rod before taking it apart. I got the hone but dont know if it is ok to use it, it lacks about a 1/4" of filling the bore, can i use this and work my way around the bore?, or look for something else to use.
Attachments
Hopefully this will post, be aware there may be cases where a paper flyer insert in the gasket part may override what I just posted
ENGINE SPECIFICATIONS
Armature Air Gap .010 - .014 in. (.25 - .36 mm)
Crankshaft End Play .002 - .034 in. (.05 - .86 mm)
Spark Plug Gap .030 in. (.76 mm)
Valve Clearance – Intake .003 - .005 in. (.08 - .13 mm)
Valve Clearance – Exhaust .005 - .007 in. (.13 - .18 mm)
FASTENER TORQUE SPECIFICATIONS TORQUE
Air Cleaner Base 50 lb-in. (6 Nm)
Alternator 20 lb-in. (2 Nm)
Armature 30 lb-in. (3 Nm)
Blower Housing 90 lb-in. (10 Nm)
Breather 60 lb-in. (7 Nm)
Breather Reed 40 lb-in. (5 Nm)
Carburetor to Intake Manifold 70 lb-in. (8 Nm)
Carburetor Solenoid 40 lb-in. (5 Nm)
Connecting Rod 175 lb-in. (20 Nm)
Control Bracket 45 lb-in. (5 Nm)
Crankcase Sump 175 lb-in. (20 Nm)
Cylinder Head 240 lb-in. (27 Nm)
Cylinder Shield 30 lb-in. (3 Nm)
Exhaust Manifold / Adapter 45 lb-in. (5 Nm)
Flywheel Nut 100 lb-ft. (135 Nm)
Flywheel Fan 140 lb-in. (16 Nm)
Fuel Pump 90 lb-in. (10 Nm)
Fuel Tank 180 lb-in. (20 Nm)
Fuel Tank Bracket 180 lb-in. (20 Nm)
Governor Lever Nut 40 lb-in. (5 Nm)
Intake Manifold to Cylinder Head 90 lb-in. (10 Nm)
Muffler 140 lb-in. (16 Nm)
Oil Drain Plug – Side 100 lb-in. (11 Nm)
Oil Fill Tube 140 lb-in. (16 Nm)
Oil Pump Cover 90 lb-in. (10 Nm)
Regulator / Rectifier 40 lb-in. (5 Nm)
Rewind Starter 30 lb-in. (3 Nm)
Rocker Ball Set Screw or Nut 45 lb-in. (5 Nm)
Spark Plug 180 lb-in. (20 Nm)
Starter Motor 140 lb-in. (16 Nm)
Rocker Cover 70 lb-in. (8
ENGINE SPECIFICATIONS
Armature Air Gap .010 - .014 in. (.25 - .36 mm)
Crankshaft End Play .002 - .034 in. (.05 - .86 mm)
Spark Plug Gap .030 in. (.76 mm)
Valve Clearance – Intake .003 - .005 in. (.08 - .13 mm)
Valve Clearance – Exhaust .005 - .007 in. (.13 - .18 mm)
FASTENER TORQUE SPECIFICATIONS TORQUE
Air Cleaner Base 50 lb-in. (6 Nm)
Alternator 20 lb-in. (2 Nm)
Armature 30 lb-in. (3 Nm)
Blower Housing 90 lb-in. (10 Nm)
Breather 60 lb-in. (7 Nm)
Breather Reed 40 lb-in. (5 Nm)
Carburetor to Intake Manifold 70 lb-in. (8 Nm)
Carburetor Solenoid 40 lb-in. (5 Nm)
Connecting Rod 175 lb-in. (20 Nm)
Control Bracket 45 lb-in. (5 Nm)
Crankcase Sump 175 lb-in. (20 Nm)
Cylinder Head 240 lb-in. (27 Nm)
Cylinder Shield 30 lb-in. (3 Nm)
Exhaust Manifold / Adapter 45 lb-in. (5 Nm)
Flywheel Nut 100 lb-ft. (135 Nm)
Flywheel Fan 140 lb-in. (16 Nm)
Fuel Pump 90 lb-in. (10 Nm)
Fuel Tank 180 lb-in. (20 Nm)
Fuel Tank Bracket 180 lb-in. (20 Nm)
Governor Lever Nut 40 lb-in. (5 Nm)
Intake Manifold to Cylinder Head 90 lb-in. (10 Nm)
Muffler 140 lb-in. (16 Nm)
Oil Drain Plug – Side 100 lb-in. (11 Nm)
Oil Fill Tube 140 lb-in. (16 Nm)
Oil Pump Cover 90 lb-in. (10 Nm)
Regulator / Rectifier 40 lb-in. (5 Nm)
Rewind Starter 30 lb-in. (3 Nm)
Rocker Ball Set Screw or Nut 45 lb-in. (5 Nm)
Spark Plug 180 lb-in. (20 Nm)
Starter Motor 140 lb-in. (16 Nm)
Rocker Cover 70 lb-in. (8
SeniorCitizen
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- Aug 28, 2010
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The 2 top rings being broken isn't very common. Why do you suppose they broke?