727 Servo Leak?
#1
727 Servo Leak?
I'm rebuilding a 727 and am to the point where I am checking the servos for leaks with air pressure and it seems like the low/reverse servo applies much harder than the kickdown servo. Is this normal? I've replaced the sealing rings and checked their fit and they were fine. Any suggestions? Thanks.
#2
Did you use any lub on the cyl. when you put the piston in? It's been a while since I did a air check .I use to make my band adjustments and then at the end just before the valve body went back on , I used a air gun with a piece of fuel line clamped on the tube so as to make a tight seal against the case . Then slowly apply air to watch the action of the band and servo's.Also listened for air. Then the clutch pack's. Hope that helps you. Wish I could see and hear what your doing I could tell you in an instant. Let me know if you need any more tips. Cert. Trans repair was my job when I worked at the dealerships. When Mopar had Great Trans. 727 and 904.
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