GMW16694
Metered Oil Flow Rate (MOFR) of Valve Stem Seals
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| Organization: | GMW |
| Publication Date: | 1 December 2017 |
| Status: | active |
| Page Count: | 9 |
scope:
Purpose.
Measure by collected weight, the oil flow rate (Oil leakage rate (grams/5 h) (Q)). The oil flows through the valve stem seal which flows between the valve and the valve guide, and reaches the bottom of the valve guide due to gravity and differential pressure, after 5 h.
Applicability.
Intake (Int) and exhaust (Exh) valve stem seals. After long term engine lab or field testing, leakage can be remeasured
Document History
GMW16694
December 1, 2017
Metered Oil Flow Rate (MOFR) of Valve Stem Seals
Purpose.
Measure by collected weight, the oil flow rate (Oil leakage rate (grams/5 h) (Q)). The oil flows through the valve stem seal which flows between the valve and the valve guide, and reaches...
January 1, 2012
Metered Oil Flow Rate (MOFR) of Valve Stem Seals
Note: Nothing in this standard supercedes applicable laws and regulations.
Note: In the event of conflict between the English and domestic language, the English language shall take precedence....