Paul,
I recently did a complete brake job on my front drum brakes. Afterward, I
couldn't get some softness out of the brake pedal. I pedal bleed the whole
system in correct sequence twice and still had a softness in the pedal. I
finally discovered that one of the snail cam adjusters was not fully
adjusted to keep the shoe brushing the drum. I thought I had them adjusted
o.k. after the job, but one was not up tight (the shoe should be just
brushing the drum when rotated without bakes applied). When I adjusted the
one correctly, the pedal softness was gone!
Vrooom vrooom,
John
----- Original Message -----
From: "Blue One Hundred" <healey.nut@gmail.com>
To: <Fiat500f@aol.com>
Cc: <healeys@autox.team.net>
Sent: Wednesday, June 08, 2005 3:11 PM
Subject: Re: 100-4 BN1 - what's the word on brake drums?
> Paul -
>
> There are no problems with the drums per se.
>
> The BN1 is very sensitive to how you bleed the system. If you don't
> do it right, it will continue to have air in the system.
>
> The only way to do it is to do it the old fashioned pedal-pumping
> method... this will take two people. If you used some sort of power
> of vacuum bleeder this won't work on a BN1. It won't because the
> bleed valves are at the bottom of the system/cylinders so if you use a
> suction method it will still have air in the system.
>
> You MUST also bleed it in the right sequence... THIS IS VERY
> IMPORTANT. Any time you bleed the brakes on a BN1, you must bleed the
> WHOLE SYSTEM in the right order. Bleed Left Rear, Right Rear, then
> Left Front then Right front.
>
> The BN1 Shop manual explains this as well.
>
> On my BJ8 I don't have to follow these complex rules because the bleed
> valves are placed at the top of the brake cylinders...
>
> Regards,
>
> Alan
>
> '53 BN1 '64 BJ8
>
>
>
> On 6/9/05, Fiat500f@aol.com <Fiat500f@aol.com> wrote:
>> Hi, again,
>>
>> I'm working on my friends BN1 with him and we've got brake drum problems.
>> The brake hydraulics are air bubble free, but I still can't get a solid
>> pedal.
>> With the car in the air, I can spin the wheels, and my friend pushes the
>> brake
>> pedal normally, and the wheels stop. I just can't adjust the shoes very
>> close to the drums without them dragging at certain points in their
>> rotation.
>> Does anyone make new BN1 four stud drums, or have guaranteed ROUND used
>> ones?
>>
>> Sincerely,
>> Paul B.
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