Three specs are considered critical; the connecting rod cap at 110 in-lbs, the sump cover at 110 in-lbs and the cylinder head at 165 in-lbs.
The thickness of a cardboard from a cigarette box.
not sure. i want to know too. What is this on? need more info.
5/8 inch
The oil capacity of a 3HP Briggs and Stratton engine is typically around 20 ounces (approximately 0.6 liters). It’s important to check the specific model's owner’s manual for precise specifications, as oil capacity can vary slightly between different models. Always use the recommended oil type for optimal performance and longevity of the engine.
Briggs and Stratton does not release specific compression values. Anything above 120 psi should be just fine, around 90-100 and you're most likely due for a rebuild. A better test is a leakdown test, with can help in determining where compression is being lost.
The coil gap for a Briggs & Stratton 3HP motor typically ranges from 0.010 to 0.012 inches. It's important to measure this gap accurately to ensure proper ignition and engine performance. Adjusting the gap can be done by loosening the coil screws and using a feeler gauge to set the correct distance before tightening the screws back. Always refer to the specific engine's manual for exact specifications.
The point setting on a 3hp Briggs and Stratton engine typically refers to the ignition timing, which is adjusted using a feeler gauge to ensure the ignition points open at the correct gap. For most models, the gap should be set to approximately 0.020 inches when the points are fully open. Proper adjustment ensures optimal engine performance and prevents misfiring. Always consult the specific engine's manual for exact specifications and procedures.
My daughters mini bike with a 3hp Briggs has 80psi compression and runs great. A motor I got "running" off eBay has 55psi compression, runs but has NO power. -Jason
B&S site
less than a 3hp Briggs and straton
It is usually a Champion plug RJ19LM. The gap is .030 inches. This plug is usually used with B&S engines from 3hp - 6hp.
i gota three 3hp seahorse johnson boat motor i need to get to head how does everthing come apart