Briggs can't pump the gasoline

[John30]

My lawn mower has Briggs&Statton 675 engine.

I hit a bit rock and the engine stopped. The blade was damaged. After that each time I started the engine there was a bang and it was less powerful, since the blade was damaged and was cutting more grass.

I changed the blade, air filter, added oil but the lawn mower does not start. I can't pump the gasoline with the button, it is just air. I think that if I could pump the gasoilne into engine, I could start the landmower.
What could be the issue?
I should probably check the carburetor, since it can't pump the gasoline into engine with the button?

 

[ILENGINE]

How about getting us the model, type, and code off of the engine so we can see what engine you are trying to repair.

 

[John30]

Briggs & Statton 675 series, 190 ccm.

 

[ILENGINE]

Now which one of the 6.75 lb/ft torque engines is this. We need the model and type off of the engine to better give you a correct answer.

 

[John30]

Lawn mover : WEIBANG Garden Machines,
WB506SB-3 IN 1
4.47 kW 40 kg
n0 2800/min 500mm

MOTOR: Briggs & Statton
Quantum 6 series 675 (Quantum probably?)
190 cc

IMPORTANT ENGINE INFORMATION: FAMILY 8BSXS.1901VH 278057

e11*97/68SA*2004/26*0296*01

 

[ILENGINE]

There are several different styles of the 675 series over the years. the numbers that I seek could be located above the spark plug stamped into the metal housing, the metal flap over the muffler if it has that style, or in the area of the carb on the new OHV engines. The family stuff is an EPA registration number and doesn't mean anything to anybody but the EPA. 675 series is the torque rating but has been used on various engines over the last 10 years.

You may have to really look for the numbers because they can be hard to locate in some cases.

 

[rbthud]

Seeing that he hit a rock and hit it hard enough to damage the blades, could it be that he sheared the flywheel key and the engine is out of time?

 

[Rivets]

Just a thought, if this is one of the newer Briggs engines, you may scan that funny box ( universal product code, I think that's what iit is called) with your smart phone and the proper App, to get the model numbers. Don't have a smart phone, so I have to get one of the younger techs to help me with this. Sorry if this makes it more confusing.

 

[BlazNT]

Engine number can be found here with plastic cover removed.

 

[cpurvis]

Don't engine stoppages from hitting rocks and bending blades affect almost all models the same way?

If you're lucky, it's just a sheared flywheel key.

If you're unlucky, you've got a bent crankshaft.

If I'm mot mistaken, the Briggs primer bulb only pumps air. It pressurizes the float chamber, forcing fuel through the main jet. But if it's split, cracked or otherwise leaking air, it can't do what it's meant to do. If in doubt, replace it. They cost pennies.