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The Best Cylinder Leak Down Tester of 2021

  Updated on 19 October, 2021

Generated From 25K+ Reviews!
SaleBestseller No. 1
OTC 5609 Cylinder Leakage Tester Kit
  • OTC's Cylinder Leakage Tester Kit quickly diagnoses internal engine problems like bad...
  • Dual 2-1/2 inch gauges read 0-100 psi and 0-700 kPa and feature chrome bezels and rugged...
  • Kit features a pressure regulated manifold with quick couplers, 24 inch long 14mm flex...
  • Rugged, blow molded storage case with removable lid keeps components organized and...
Bestseller No. 2
Cylinder Leak Down Tester,Compression Test kit - Engine...
  • Cylinder leak down tester,compression test kit -Engine Cylinder Dual Gauge Leakdown Tester...
  • UNIVERSAL FITMENT. Suits all local and imported cars and trucks, ideal for testing trucks...
  • Designed to detect a variety of common engine faults such as worn piston rings, cylinder...
  • PACKAGE CONTENTS: 480mm flexi hose, 12mm and 14mm spark plug adapters, fixed short...
Bestseller No. 3
Lang Tools CLT-2 100 PSI Cylinder Leakage Tester with 2...
  • Measures the ability of an engine cylinder to hold compressed air- using shop air...
  • Package Dimensions: 5.842 L x 29.972 H x 20.32 W (centimeters)
  • Package Weight : 1.293 kilograms
  • Country of Origin : United States
SaleBestseller No. 4
ATD Tools 5573A 2-Gauge Cylinder Leakage Tester
  • 2-gauge design allows for monitoring of input air-line pressure to ensure accurate testing
  • Easy-to-use regulator allows for precise control of input air pressure
  • Helps to pin-point problems indicated by a compression test or cylinder balance test
  • Uses shop air to determine leakage source and the amount of leakage measured in percentage...
Bestseller No. 5
JIFETOR Cylinder Leak Down Tester Kit, Professional Dual...
  • ENGINE CYLINDER LEAKAGE TEST: JIFETOR cylinder leak gauge set is designed to detect a...
  • WORKING PRINCIPLE OF LEAKDOWN DETECTOR: Once the leakage tester has been connected to one...
  • DUAL PRESSURE GAUGES ASSEMBLY: There are American style air plug, pressure regulating...
  • 3 ADAPTERS AND OTHER PARTS: There are 3 sizes adapters brass coated aluminum 14mm(fixed on...

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Buyer's Guide: Cylinder Leak Down Tester

A Brief Insight Into Different Types of Cylinder Leak Down Testers

A Cylinder Leak Down Tester is an important tool used to detect the state of inner combustion engines by manually introducing compressed air within the cylinder, and then measuring the amount of gas that leaks out. This tool is used in many types of industrial applications including powering trains, turbines, engines at the power station, processing plants, printing presses and so on. The tool helps in reducing the strain on the engine thus increasing the efficiency of the engine. This also prevents the increase in wear and tear of the engine due to stress. Leakage of inner combustion engine parts can lead to catastrophic failures in engines like pistons, rings, bearings, connecting rods, timing chains etc. Hence, leak down testers are very essential tools.

It has an automatic air pressure gauge which displays the flow of air through the hose. A positive gauge shows the flow of air whereas a negative gauge shows the flow of gas escaping from the cylinder. A weak point in the Cylinder Leak Down Tester is its inability to display small leaks in the cylinder. In such cases it may only be able to detect the leakage of a few cc's. It has to be carried along with the Cylinder Leak Down Tester while purchasing the tool as it must be portable.

The Cylinder Leak Down Tester comes with many accessories. The first accessory is a flexible hose called the Gauge Link, which is useful for carrying the tester wherever you go. The next accessory is the air compression gauge, which is used for reading the compression test results of the engine cylinder. This gauge displays the pressure as well as the temperature of the cylinder before testing is done. In addition to these, the Cylinder Leak Down Tester also contains an LED light which gives accurate readings.

The Air Compression Gauge is one of the most important Cylinder Leak Down testers. The main function of this accessory is to monitor and control the cooling system of the car. As we all know, every car requires air and fuel to function properly. Hence, the air compression gauge helps to regulate the amount of intake and exhaust air. It helps to maintain the right level of compression of the engine thereby ensuring that there is no leakages in the system. There are various types of the air compression gauges available in the market.

One of the most commonly found accessories in a Cylinder Leak Down Tester is the air hold gauge. This accessory helps to check the amount of air hold (the space between the valve seat and the valve casing) remaining after the complete compression of the engine. If the air hold remains intact then it is an indication of leakages in the cylinder head and the seal. On the other hand, if the air hold is damaged then it can be an indication of a damaged valve stem, worn out seals, worn cylinder head, worn down cylinder heads or worn out seals.

The second type is the pressure sensitive valve. This Tester works on the principle of detecting pressure changes caused due to varying compression pressures. As per the requirement, it comes with a dial and a series of needles that display different compression pressures. The needles increase as the pressure decreases. The pressure sensitive valve monitors the compression pressure changing due to engine rotation and accordingly displays the readings.

For high-pressure Cylinder Leak Down Test, the best option is the spark plug close circuit detector. This accessory uses an electrical current to detect the opening and closing of the spark plug. The wires are attached to a small cap that forms a loop and the spark plugs open when the circuit is formed. Due to the increased electric voltage, the leakages show up as black marks on the screen. The leakages also show up as glow as the oxygen mixture is exhausted through the leak holes in the cylinder walls.

The third type is the fuel injector leakage detector. This device uses the principle of injecting fuel in the cylinder without causing any damage to the combustible materials. However, the leakage will form a black mark on the screen indicating the exact source of the leakage. This device is mainly used for low pressure Cylinder Leak Down Test.