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Mityvac MV8500 Pressure and Vacuum Tester - Briggs Tools 19493
Mityvac MV8500 Vacuum Tester

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Our Price: $92.26

Quantity in Stock:1
Availability:: Usually Ships in 24 Hours
Product Code: MYV8500

Description Technical Specs Extended Information
The original metal Silverline Elite professional hand vacuum/pressure pump and accessories.
Used by service professionals worldwide for performing hundreds of automotive diagnostic and mechanical tests and for one-person brake bleeding. Also works great for siphoning or transferring fluids from tanks and reservoirs.
  • Vacuum & pressure related engine performance diagnostics and tune-ups
  • Brake and hydraulic clutch bleeding
  • Fluid transfer, evacuation, and sampling
  • Kit includes everything for performing hundreds of diagnostic and mechanical tests, and for one-person brake bleeding
  • Produces vacuum or pressure at the turn of a switch
  • Comfortable ergonomic design
  • One-finger trigger vacuum/pressure release
  • Pressure and vacuum are created on the squeeze stroke for superior accuracy and control
  • Includes durable, accurate diaphragm style compound pressure/vacuum gauge
  •  Silverline Elite hand vacuum/pressure pump w/ 2” (50 mm) compound gauge w/ rubber boot
  •  4.5 oz. (135 ml) fluid reservoir bottle w/ fluid transfer and storage lids
  •  4 Tapered adapters for connecting to tubing from .09” (2.3 mm) to .50” (13 mm) ID
  •  2 Tapered manifold plugs
  •  4 Universal bleed screw adapters
  •  12 Vacuum cap plugs
  •  Vacuum line T-adapter
  •  (2) ¼” (6.4 mm) ID x 24” (610 mm) long connection tubes
  •  5/32” (4 mm) ID x ¼” (6.4 mm) ID tubing adapter
  •  3 Connection tubes
  •  Rubber cupped adapter
  •  Master Cylinder Refill Kit (model no. MVA6825)
  •  Custom Molded Case
  •  User’s Manual (English, French, Spanish, German)
Helpful tips for Non-Automotive Applications:
Although marketing, and instructions favor the automotive industry there are unlimited uses for this tool in performance applications as well as the smaller engine/equipment service industry. Additional uses include One Man brake bleeding performed quickly and no mess! Different types of carburetor, fuel system test requiring both pressure and vacuum. With add on or fabricated adapters, cooling system test for water cooled small engines, marine, motorcycle and ATV applications. Engine block and crankcase pressure test for oil or air leaks.
The listing photos shows testing on a Briggs and Stratton Race Engine cylinder head.

With a little fabricating this tester can provide a simple visual test to determine engine valve sealing. With a rubber stopper, barb and liquid soap, we checked sealing of the valves with the head off. Keep in mind that some leakage will always be lost around the valve guide/stem area so test pressures will need to be low. To help reduce the leakage around the valve stem we applied a small amount of grease on the valve before reinstalling. This particular head was leaking a noticeable amount on the intake valve and required very little cutting with a Neway cutter to true up. Once back on the engine, we performed a cylinder leak test, showing the valves sealed perfectly. Save yourself a lot of time and frustrations by having some basic tools to diagnose engine trouble.


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