Flat Tip Protrusion Gauge (.060/.070) Cummins 220, 250, 400, 855 & VT1710

Irontite Flat Tip Protrusion Gauge - For Cummins 220, 250, 400, 855, VT1710 Injector Protrusion

The Flat Tip Protrusion Gauge is a specialized Irontite tool designed for accurately checking injector tip protrusion in a range of Cummins diesel engines, including the 220 Series and 250 Series (encompassing NTC-400, NT-855, and VT-1710 models). This gauge is specifically calibrated to verify tip protrusion between .060 and .070 inches. Used after a new injector sleeve is installed and seat cut, it allows for immediate verification of protrusion when an injector is placed in the sleeve. This critical check is essential to ensure precise injector seating before the cylinder head returns to service. It is an included component in the Complete Kit for the 250 Series (450-6152-50).

Irontite Flat Tip Protrusion Gauge - Ensuring Precise Injector Seating for Cummins Engines

The Flat Tip Protrusion Gauge is a precision tool manufactured by Irontite, specifically engineered to accurately measure injector tip protrusion in a crucial range of Cummins diesel engines. This gauge is indispensable for rebuilders performing injector sleeve replacements and cylinder head overhauls, ensuring the correct seating of injectors for optimal engine performance.

Protrusion Range and Dedicated Engine Applications:

• Precise Measurement: This particular gauge is designed to check for an indicated injector tip protrusion falling within the specific range of .060 to .070 inches.

• Cummins Engine Compatibility: It is supplied for and accurately used with several prominent Cummins engine series, including:

  * Cummins 220 Series engines * Cummins 250 Series engines, which famously include various models with a 5-½” bore such as the NTC-400, NT-855, and VT-1710.

Purpose and Essential Usage:

The Flat Tip Protrusion Gauge serves a vital role in the post-installation verification process for injector sleeves:

• Measuring Tip Protrusion: The gauge is used to measure the actual tip protrusion when the injector mandrel and tip are placed into a newly installed injector sleeve.
• Immediate Verification: After a new sleeve has been correctly installed and its seat precisely cut, simply placing the flat tip protrusion gauge down onto the face of the cylinder head with an injector positioned in the sleeve will immediately indicate whether the injector tip protrusion falls within the specified .060” to .070” range.
• Critical Pre-Service Check: This verification step is absolutely essential. It allows technicians to confirm the correct protrusion and perform any necessary modifications or adjustments before the cylinder head is placed back into service, preventing potential issues related to incorrect injector seating.

Kit Inclusion:

The Flat Tip Protrusion Gauge is an integral component included in the Complete Kit for the 250 Series (450-6152-50). This inclusion highlights its importance as a standard tool for comprehensive injector sleeve servicing on the specified Cummins engine models.

By utilizing this Irontite Flat Tip Protrusion Gauge, technicians can achieve unparalleled accuracy in injector installation, contributing to reliable engine operation and extended component life in demanding Cummins diesel applications.