78 a/c sight glass valve
#1
78 a/c sight glass valve
Can anyone explain the function of the poppet in front of the sight glass in the high side line in front of the sight glass. does the plunger slide in and out on the spring???? I replaced the o ring on it and freed it up so it now moves in its bore but I want to make sure i didnt overlook something.also the shop manual has no reference to this part for clarification
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