Re: strange brake behavior

On Mon, 05 May 2008 14:09:07 -0700, L.W.(ßill)Hughes III wrote:

>     There:fore you know both cups failed at the same time.
>         God Bless America, Bill O|||||||O
>         mailto:BillHughes@[EMAIL PROTECTED]
>   http://www.billhughes.com/jeep_bookmark.htm


And what 'logic' brings you to that conclusion?

You just made a statement of /assumed/ fact. How about something to
sup****t your assumption?

Specifics, please.


> 
> "nrs" <neale_rs@[EMAIL PROTECTED]
> wrote in message
>
news:bc96cba3-0f17-4546-b483-1e0aa374fd10@[EMAIL PROTECTED]
> On May 5, 12:50 pm, "Earle Horton" <earleh_nos...@[EMAIL PROTECTED]
> wrote:
>> It's hard to believe, but the Jeep could have been at an angle extreme
>> enough for the master cylinder to suck air. That's scary. The part
about
>> the brakes being applied even though you had your foot off the pedal is
>> strange though. I would probably replace the master or at least tear it
>> down for inspection just in case.
>>
>> Earle
>>
>> "nrs" <neale...@[EMAIL PROTECTED]
> wrote in message
>>
>>
news:b4ab20cf-fc1f-407b-b12b-9583f5a054dd@[EMAIL PROTECTED]
>>
>>
>>
>> > While wheeling a few days ago, the jeep was at an extreme angle and
>> > the engine was about to stall. I was driving off a ledge using the
>> > brakes. I realeased the brakes to see if the Jeep would roll forward
>> > a bit and then when I pressed on the brake pedal again it went to the
>> > floor with no resistance, I let it out and pressed again and it went
>> > down most of the way but I think there was some resistance just
before
>> > the floor. It seemed like the brakes where being kept applied despite
>> > my foot being off the pedal. I shut off the engine and restarted and
>> > everything was fine for the rest of the trip and it was also fine the
>> > next day around town. There was no fluid loss, the reservoir is still
>> > full. Any ideas what could have caused this?
>>
>> > Thanks- Hide quoted text -
>>
>> - Show quoted text -
> 
> What's really strange is that no fluid is missing and the brakes did
> not require bleeding.  My best guess so far after looking at the FSM
> is that the atmospheric pressure valve could be leaking.  This would
> mean that even with the foot off the pedal there is still no vaccuum
> at the backside of the diafragm, causing the brakes to stay applied by
> the booster itself via the secondary pushrod.  The brake pedal could
> come back up moving only the primary pushrod.  What would you
> recommend, change the booster or the entire master cylinder and
> booster assembly? I'm leaning towards replacing the booster only for
> now.
> 
> 
> ** Posted from http://www.teranews.com
**

-- 
"Enlisted men are stupid, but extremely cunning and sly, and bear
considerable watching." 

                            -- Army Officer's Guide