BUKH dv 20

According to the manual oil pressure is kept between 2.0 and 4.0 kg/square cm. I wil leave it to you to convert to lbs/sq in if thats what you use. The pressure relief valve can be adjusted by replacing or stretching the spring to increase pressure, or mounting copper washers between the plug and support to reduce. Lowest allowable pressure with a hot engine is 0.8kg/sq cm
 
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