Precision Measurement Supply - Fixtures, Tooling And Measuring Devices For Professional Engine Builders

Valve Seat Vacuum Tester

" I Don't Care Who Does Your Head Work; If They
Can't Seal The Valves Something Is Wrong"

You Need To Catch The Problem and Correct It Before Engine Assembly

A Vacuum Test Is A Lot More Sensitive Than A Leak Down Tester For Analyzing Valve Seal

We Took The Time To Design A Real Nice Unit That Fits The Needs Of The Racer. This Unit Is Designed Around A Very Good Venturi Vacuum Pump And Utilizes High Quality Quick Disconnects For Fast Plate Changes

Venturi Pump Creates A Vacuum From Any Shop Air Compressor

Comes With A Selection Of Plates For Most Applications - Custom Plates Available For Unique Applications

Bronze Muffler For Quiet Operation

Low Air Consumption

Quick Disconnect Hose Fittings For A Fast, Leak Free Connection

Machined From Aluminum And Anodized

Comes With Durable Storage Box

This is an excellent tool for assessing the quality of your valve seal.  A properly prepared valve job should hold a vacuum when the button on the tester is depressed.  If it does not,  find someone else to do your head work because this will cost you horsepower.



The head should be checked in two ways to determine seal quality.  

First, drop a valve in a seat and pull a vacuum through the intake and exhaust port.  This will check both the guides and the seats for leakage.

Next, pull a vacuum over the combustion chamber to check the seats only. 

NOTE:  If the combustion chamber test pulls a vacuum and the port test does not, you have a leak past the valve guides and stem which is not tool big of a deal on the exhaust but will burn oil on the intake.

"A Must For Anyone Maintaining Or Building Engines"

Every Time You Pull The Manifold You Can Determine
The Valve Seat Condition In A Matter Of Seconds

See Our Current Low Prices Here

Download The .pdf File Of This Catalog Page


7050 Snowflake Dr.
San Antonio, TX 78238
210.681.2405     Fax: 210.684.6472

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