crankcases Planned
A part of the load of years worn on the Impala, the main problem he has is that spits crankcase oil change. This is probably due to compression happens crankcase to gear housing, given the poor condition of the board or because the housings are deformed.
Hence the moment I focus on repairing the engine, go to the Impala on 14 June.
Indeed, a After opening the engine and separate the two semicárteres, when positioned on a flat surface (glass) shows that are curved in the middle, as suspected.
The solution is to make it flat the two sides in contact semicárteres.
pedestrian
The method used has been sanded on a flat surface. And as a flat surface, I used the kitchen window.
Once planned, you can perform a simple check that advised me Il Professore Toti. Assemble the two semicárteres seamless, with a bulb inside.
We turned off the lights and inspect to make sure if the light passes through the joint between the semicárteres.
Adjusting lights
advantage that the engine is open, and adjust the inlet ports and transfer of gases to remove ridges and barriers to the free movement of such data. Not a matter of tightening or tweaked the engine by larger ports, but leaving existing in perfect condition with its original dimensions.
Riding on a cylinder crankcase can see a ridge of so that the tube in the aluminum crankcase is narrower than its passage in the cylinder.
Because aluminum is easily worked, using appropriate tools limamos duct ...
... to make it perfectly flush with the duct of the shirt.
well then polish the pipes and the crankcase, like ducts in the cylinder, piston head and combustion chamber of the cylinder head to optimize the gas flow and prevent sticking Char.
The same method will apply to air intake ...
... and nozzle ...
... since in this bike the corresponding openings of the two that are faced by any chance did not agree.
another question would arise tweak the lights, enlarged, in theory, improve the flow of gases, but that is more engine tweaks, and now I'm not interested.
Biela and crankshaft
Recommended by Il Professore has been to change the connecting rod cap by have too much slack, and drawing, is mounted a roller bearing, better and safer.
As has been to bring the rectifier rod-crank assembly, took the opportunity to cover the balances of the second aluminum (comme il faut) to enhance the pre-compression of gases in the crankcase. The Sport 250 and had the counter covered with aluminum series.
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