News & Topics
The Crankshaft
Can you tell what is wrong with the crankshaft from this picture?
This is a pretty common failure found in high mileage cars and is caused by a lack of lubrication. The crankshaft is the core component of an engine and so the crank bearings are. Changing the engine oil regularly will prevent this scratchy crankshaft journal and bearings. Luckily, this crankshaft was not damaged severely so Sato is going to polish the journal and use this crankshaft again.
Since the engine is opened and torned apart so now is the good time to polish the valves. All the carbon buildup was cleaned and polished and we can see the shiny valve face.
On the RB26DETT, there is a little bump in the exhaust port and this is designed to make a turbulence of exhaust gas to flow at high speed but at the same time, it will be resistance so Sato decided to take some time to remove this bump from all the exhaust port so that exhaust gas flow more efficiently.
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