Kawasaki KZ650 cafe-racer project: valve leak test.
Автор: Gazzz Garage
Загружено: 2021-01-13
Просмотров: 455
Описание:
It may sound strange, but having the new OEM cylinder head and valves I decided to perform valves leak test. Therefore I installed all valves (without valve seals).
Then I performed the test in which combustion chambers are to be filled with liquid and compressed air are to be blown into intake and exhaust ports. I didn't like the idea to use water on brand new valves so I filled the chambers with kerosene.
This test takes more activity from the tester, but it also shows results much quicker than classic test. It confirmed the result of the classic test. It's likely that valves became tight during the work of the engine, but I didn't wish to take risks. I decided that even fine lapping compounds I have at hand will be coarse for the job, so I made my own compound from the mix of "coarse" polishing compound and oil. This soft "lapping" left no scratches but only shimmering traces on the valves and it did the trick, so all valves became tight.
More about project here:
https://www.gazzz-garage.com/category...
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