The Briggs & Stratton engine model 21M314-2470-E2 is a 342cc Snow Professional Series horizontal shaft engine designed specifically for snowblowers Number ingrave in the Standard size piston = H079A 5 216413 Or B&S 793318 or 791813 B&S oversize piston .020 inch Number 793325 but NLA And No information on a .010 inch oversize piston ( option )
So far i have replaced the carburetor, ensured rubber hose from gas tank to carburetor is clear and clean. I also cleaned out fuel tank and added new premium gas, changed oil, replaced spark plug. It is getting spark. The only way to get the mower to run is spray starting fluid directly into...
Especially important on the Briggs single 21,28,31, and 33 series Intek engines as they are bad about blowing the head gasket between the cylinder and push rod galley. Air does leak pass the ring end gaps so even the positioning of rings can affect the leakage rate.
In my rambling through cyberspace I stumbled across the solution in a YouTube video, "Briggs and Stratton 300e won't prime, runs with starter fluid - Easy fix." I had been pushing the primer bulb 5-7 times but it seems that for this engine you need to push the bulb 10-12 times very rapidly. I did that and it cranked right up!
20hp briggs & stratton surging oldntired55 briggs briggs & stratton 1 2 3 Next O
I was wondering if anyone knows what the head bolt torque is for a newer briggs 22hp v twin engine is. My repair book is older and doesn't mention the specs for this engine.