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A wilde ride home today, white knuckel


5thhorsemann

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Hey, while we're on the subject, should the brakes be bled with the motor off, or with the vacuum assist operating?

you should not run the motor to bleed power brakes, it makes it harder to get the air out of the system as the boost actuatuon makes the fluid flow faster and squirt farther.

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Precisely! Keeping the air out of your braking system is very important. This is a good lesson in keeping the brakes bled and when acquiring a used car, especially one that's approaching 40 years old, make sure to bleed the system. Previous owners tend to be terrible at basic maintenance, especially when you're like me and like to buy cheap Zs!

And this is especially true if I was the previous owner! :P

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Just finished rebuilding both rear wheel cylinders, took less than three hours to do both sides and BLEED ALL 4 CORNERS. Parts were less than 15 bucks. The brakes feel just like they did before the wheel cylinder failed. I checked out the pushrod assembly when I did the MS test, paying attention to when the gauges started to deflect in relation to peddal position. I feel good about the boost opperation.

My FSM calls for the boost unit to be "overhauled every two years", Does anyone do this? I bet mine is original and never been touched.

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