Pull back spring for piston of booster
Hello GORDON
Of course there is a pull back piston spring inside the booster. Normaly with it action added to vacuum at the front of the piston of the booster, the brake pedal should return at it idle position after been released.
As showed in my previous pic (and as I saw on an other DODGE T110) there is no pull back pedal spring.
I think that my problem is due to the rubber of the piston. Please,can you give me the name of the specific oil you told in your previous post
Regards Serge
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