How does the lawnmower valve timing be installed
The mower has a locating point on the cam teeth and the mowers.
The gap is too large: into the exhaust valve to open later, shorten the intake and exhaust time, reducing the opening height of the valve, changing the normal gas phase, so that the engine due to lack of intake, exhaust is not clean and power down, In addition, the impact of the valve parts also increased, wear accelerated.
The next step is the adjustment of the valve. At this point as long as the valve and the rocker just transferred to close to live can. Theoretically the valve and the upper arm of the gap is 0.02 ± 0.005 mm, the actual as long as just paste it can be, and leave the gap is due to the object of thermal expansion and contraction principle, the engine will work in close contact.
When the crankshaft, the cam positioning point is good, and then push the piston to the top, this time, the magnetic flywheel positioning Shaw pointed to the top, the magnetic flywheel and high pressure package just magnet and the line from the nearest distance.
The gap is too small: the engine work, the parts of the thermal expansion, the valve pushed open, so that the valve closed lax, resulting in leakage, power down, and the valve sealing surface serious carbon deposition or burn, and even the valve hit the piston.
