VACUUM READING

The vacuum gauge which can help diagnose engine problems from sticking valves, poor rings, bad carburetor adjustments to leaky head gaskets is described. Since specific engine problems effect manifold vacuum in certain ways, a vacuum gauge can be used to accurately diagnose the condition of an engine by measuring the amount and condition of the vacuum. To provide this measure and condition report, the vacuum must be hooked up correctly. This article describes how the gauge should be used. The cranking vacuum test and other tests are described. It is noted that the best way to keep a constant check on the engine's performance is to install a permanent dash-mounted vacuum gauge.

• Corporate Authors:

  US Air Force Inspection and Safety, Center

  Norton AFB, CA  United States  92409
• Publication Date: 1984-4

Media Info

• Features: Photos;
• Pagination: p. 24-27
• Serial:
  • Driver
  • Volume: 17
  • Issue Number: 11
  • Publisher: US Air Force Inspection and Safety, Center

Subject/Index Terms

• TRT Terms: Diagnostic tests; Engine performance; Gaskets; Measuring instruments; Testing equipment; Vehicles
• Old TRIS Terms: Head gaskets; Vacuum gages
• Subject Areas: Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00391324
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: HS-037 083
• Files: HSL, USDOT
• Created Date: Dec 30 1984 12:00AM