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Tips
Tips

Overdrive Pressure Test

Mag9

Freshman Member
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Hello
I have a pressure gauge to test the overdrive and was wondering if the ball and spring and valve are removed before attaching the gauge.
Thanks
 

roscoe

Jedi Knight
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What you need to do is best done with a spare valve cap. The spring and ball must remain functional and in place. Take the spare cap and drill a hole in the top, braze or weld an adapter to install a 0 to 500 psi gage in to the cap leaving the hole open to the gage. Just install this inplace of the unmodified cap. As you can see the cap has a recess in it that needs to remain intact for the spring and ball.
 

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Healey Nut

Luke Skywalker
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Me being a refrigeration HVAC guy . I have a schrader fitting welded onto my plug so no need to change caps . Just take of the dust cover cap install gauge , check pressure đź‘Ť
 
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