vacuum tester? for otto cycle engine?

tybilly

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hello my first post,yrs ago i worked in a dealership.and my co worker had some kind of thermometer thing with a hose attacthed to a rubber stopper,plugged into the oil dipstick i think he was checking vaccuum anyone know what this tool is called?
 

tybilly

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i guess that was a dumb question,lol,was wondering who sells these and why was he checking vac,wouldnt a leakdown tester suffice?
 

EngineMan

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A leakdown is not a vacuum test. leakdown is to do with pressure, vacuum is what it is (vacuum) a vacuum gauge can read vacuum & pressure...!
 

Rivets

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Is he talking about a vacuum gauge or a manometer?
 

tybilly

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manometer,thankyou,what would he have been using it for rivets?
 

Rivets

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Manometer was used by Kohler to check for crankcase pressure. In fact it is one of the tools required by Kohler for their authorized service centers.
 

tybilly

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and im guessing that lossening the oil dipstick and turning the engine over wont produce a "good engine" result?(flappin up and down of the dipstick) im sorry for the dumb questions,i appreciate your responses.
 

Rivets

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Running an engine and looking for dipstick bounce is only an indicator that further testing may be needed. Certain engines have a lot of bounce and are OK, while others should have none. A manometer will test for amount of vacuum in the crankcase for diagnostic purposes. Check this website reading pages 10&13.

http://www.kohlerengines.com/onlinecatalog/pdf/tp_2043_a.pdf
 

tybilly

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thanks guys youre awesome
 
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