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What's the main engine valves failure?

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تم إضافة السؤال من قبل Mohammed Osman Abdalgabar Norain , Senior Maintenance Engineer , Almusa Group
تاريخ النشر: 2016/02/18
ksenthil kaliyan
من قبل ksenthil kaliyan , MASTER OPERATOR , NLC.INDIA LIMITED

tapping the valves at the timing

wall door seal failure

not using recommended engine oils

مستخدم محذوف‎
من قبل مستخدم محذوف‎

Starting problem, due to air fuel mixture leakage from intake valve seat, (Lake of compression) especially in cold weather. Also if inlet / exhaust valve not adjusted properly, that can cause a serious damage of engine ( can hit to piston top ) result, engine sized etc.

Less power

High fuel consemption

مستخدم محذوف‎
من قبل مستخدم محذوف‎

engine smoke, high consumption oil, loss power

Vijaykumar Srinivasan Nagamalli
من قبل Vijaykumar Srinivasan Nagamalli , GM Operations , Susee Premium Automobile Pvt. Ltd.

Engine valves wear failure, valve face recession, fatigue failure, thermal fatigue, errossion or corrossion of valves, carbon deposite on the valves

Mark Duncan
من قبل Mark Duncan , Mechanical Inspection Instructor , Itqan

An exact diagnosis of the reason for a failure can never fully be assertained until disassembly and inspection of the unit, the main symptoms of a valve failure will be a lack of compression in the engine and possibly related audible indators resulting from physical damage to the valve grear train.

Christian Zaidan
من قبل Christian Zaidan , Plant Engineer , Br. C.A.T. INTERNATIONAL LIMITED .Co

common engine valve failure is thermostate

aziz wani
من قبل aziz wani , Maintenance Engineer , L&T Company

Cylinder power imbalance. If leak occurs on the intake side, it causes intake flow issues with other cylinders. Burnt valves (due to escaping exhaust gases during the combustion cycle)

Haytham Younus
من قبل Haytham Younus , Mechanical Vocational Instructor , interserve

oil pump , air filter , oil filter. fuel filter 

shaik salman
من قبل shaik salman , site supervisor , D3-CONTRACTING & CONSTRUCTION

The two most common types of valve failure are bent/broken valves and burnt valves.

Muthukrishnan Palusamy
من قبل Muthukrishnan Palusamy , Scuderia motor design llc , Scuderia motor design llc

Bent Valves,  Burnt Valves

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