Basic rules of nozzles assembly


Torque values for tightening the injector in motor head and forces tightening the nozzle to injector holder, given by manufacturers of motors and injection apparatus are very important. Too high torque values may cause deformation of injector body resulting in high temperature during operation, loss of clearance and injector needle jamming (seizure, suspension), thus IT IS ABSOLUTELY NECESSARY TO FOLLOW CORRECT TORQUE VALUE FOR NUT CLAMPING THE NOZZLE WHEN INSTALLING THE INJECTOR.

OUR NOZZLES ENSURE long and reliable operation, low fuel consumption, no smoke, sufficiently low exhaust emissions, problem-free motor starting on condition NOZZLE OPENING PRESSURE ADJUSTMENT IS CORRECT which is checked and adjusted using SPECIAL TESTER FOR INJECTOR CHECKING AND ADJUSTING. Tightness of the connection between injector holder and nozzle depends mainly on DEGREE OF WEAR OF INJECTOR PARTS, i.e. SPACER, BODY, BAR, SPRING, thus when replacing nozzle it is necessary to inspect technical condition of injector parts and if needed replace them.

THE HIGHEST QUALITY OF WUZETEM NOZZLES and correctly installed and adjusted injection apparatus ensures long-term satisfaction of their users.

Instruction Manuals


       English version

German version

        Italian version

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WUZETEM is a global supplier of steel precision components for vehicles, machinery and equipment. It offers comprehensive solutions in the area of precision mechanics for manufacturers and distributors from the automotive industry, agricultural business, military sector and heavy industry. The company specialises in the production of high-quality nozzles, injectors and plungers. It has modern machinery and equipment, an R&D laboratory and an experienced team of engineers. The company has been in business continuously for more than 70 years, and its products can be found in 33 countries in the world.


ul. Piastowska 67
05-850 Jawczyce

NIP: 525-000-08-60
REGON: 012078978

tel.: +48 22 841 32 01
fax: +48 22 841 85 68