经以上初调后，检查各缸排气温度是否一致，如果还不能发动机的正常工作，则应测量汽缸压力是否在允许的范围之内，时更换活塞环或研磨气门，检查喷油器的雾化状况和开启压力是否正常。
柴油机喷油泵进空气的故障原因及排除：柴油机中的喷油泵与油路接通后，形成一个密封的回路，当原体内有空气时，柴油机就应供不上油而停止工作。这时，手应首先检查油箱中柴油的存量，是否用光了，进咽油管是否离开油面；二是检查油箱出气口是否被堵塞，致使油路形成真空负压而无法供油，然后将喷油泵中的放气螺钉松开，用手油泵泵油，如有大量气泡或油沫出现，并感觉供油不畅快，说明低压油路也被堵塞，这时应检查粗、细柴油滤清器是否堵塞，油管是否有裂纹、碰瘪；各油管接头处垫圈是否忘记安装，或垫圈是否已损坏，造成泄漏或进气。
当手油泵泵油时，感觉供油很流畅，但是没有压力，这主要是由于喷油泵上的回油溢流阀中弹簧折断或疲劳变形，钢球磨损或有污物垫起而密封不严，使低压油路压过低而造成喷油泵供油不足。检查回油溢流阀密封效果时，用手堵住进油口用嘴吹气，吹不动为正常，否则为密封不严，用手油泵泵油时，抽动手柄时应感到有弹力，时很轻松或放开手柄自动回位。
对于老式手油泵还应检查喷油泵进油管到油箱之间的油路是否堵塞，如有堵塞现象多数是由于输油泵下面的进油滤网被污物堵塞或垫圈损坏所致。用手油泵泵油，轴动手柄时感觉无，压下手柄时，感觉阻力很大，主要是输油泵所到油泵之间油路堵塞。大部分是因喷油泵进油螺钉与溢流阀装反，输油泵中的止回油阀装反或磨损过甚，手油泵橡胶密封圈老化损坏等原因。
如喷油器上回油管中有大量的气泡出现，这主要是由于某缸喷油嘴偶件卡死在开启位置上，气缸中的高压气体窜到喷油泵体。将回油管连接油滤清器的一端拆下，堵死滤清器回油口，气泡消失，说明故障在喷油器，然后再找是哪一缸喷油嘴偶件卡死，进行排除。
Through this exhibition, we will broaden our horizons, broaden our minds, learn advanced technologies, share and cooperate to expand the popularity and influence of China-Lutong in the automotive industry. We look forward to serving you. DIESEL FUEL & FUEL ADDITIVE EXPERTS: The diesel fuel injection system is the heart & brains of a diesel engine. in addition to traditional products such as pump head, fuel injectors, plungers, and delivery valves, our company also highlights new products of the common rail system: Common Rail Nozzle, common rail valve, fuel quantity control valve, sensors, SCV valves, common rail injectors and parts suitable for Delphi, Cat, Denso, Bosch, Siemens, etc.
The 133rd Canton Fair has ended perfectly. Thank you for coming. For those who did not come, I look forward to seeing you at the 134th Autumn Canton Fair.
The 93rd China Automobile Parts Fair (CAPF) Has Opened At The Kunming Dianchi International Convention And Exhibition Center Today, Kunming Is The Capital And Largest City In Yunnan Province, Southwest China. The City Also Acts As A Gateway To Southeast Asia And South Asia. Running From April 27th To 29th, 2023. It Would Be A 3 Days Business Trade Show Focusing On The Companies News, Products, And Services Of The Auto & Automotive Industry. The Exhibits Are Complete And Cover Most Of The Products In The Auto Parts Industry, Including Automobiles, Auto Parts, Vehicle Parts And Components As Well As Perform Services, Maintenance, And Repairs Kit, Etc.,
As One Of The Chinese Major Manufacturers And Suppliers In The Diesel Parts Market, China-Lutong Will Display Fuel Injection System Components At This Exhibition, Such As Pump Head, Plunger, Injector Nozzle, Fuel Injector, Rotor Head For VE, DPA/DPS/DP200 Pumps, Delivery Valve, Automotive Fuel Pumps Parts & Assembly And Common Rail Diesel Include CR Injector, Common-Rail Nozzle, Control Valves And Washers And Service Kits For Injectors, We Are Deeply Appreciative Of Your Support Of China-Lutong. Thank You For Your Trust In My Products And Services. We Hereby Sincerely Invite You And Your Company Representatives To Visit Our Booth At 71111 At CAPF 9SFGK
We Hope Your Current Visit Will Help Us To Further Deepen Mutual Trust, Exchanges, And Cooperation Between Our Two Companies
On behalf of China-Lutong Machinery Works co.,LTD We hereby sincerely invite you and your company representatives to visit our booth at The 9th Edition of Expomecanica & Autopartes - Peru 2023 from 26th May to 28th May 2023. Our information about this event is as follows: