From: V SCHWARTZ (vsaws@optonline.net)
Date: Mon May 08 2006 - 14:34:26 PDT
Thanks John, I just scored a brand new airpac and a brand new master
cylinder. I don't know if i will have time to put them on before we leave
for aberdeen. You know that when you have to get something done in a
hurry, the weather is not going to cooperate.( supposed to rain tommorrow
and then thurs and friday.) I guess that I will just bring extra fluid with
me To Aberdeen an deal with it when we get home again. thanks for the input
though . Vinny
----- Original Message -----
From: "Hutterer, John (MPAU)" <john.hutterer@smiths-medical.com>
To: "V SCHWARTZ" <vsaws@optonline.net>; "Military Vehicles Mailing List"
<mil-veh@mil-veh.org>
Sent: Monday, May 08, 2006 8:29 AM
Subject: RE: [MV] M35 brakes
>
>
> Vinny,
>
> The truck doesn't get driven very much. About a year ago, I was going to
> drive it over to a friends house, to move a deuce for him. The brakes
> were really low. Way too much peddle travel. I pumped them several
> times, and they seemed to be working okay. On the way to my friends
> house, a guy pulled out in front of me and I had to stomp on the brakes.
> They worked fine, but they wouldn't release. I had to block the wheels
> and go to the left rear brake bleeder and let the pressure out. A few
> months later, I again had trouble with low peddle. I had replaced the
> air pack a couple of years ago, so I figured that it was okay. The only
> thing that made sense to me was to replace the master cylinder. I
> figured that the seal was bad and that it was allowing air into the
> system, or fluid to by-pass the seal. Anyway, I replaced the master
> cylinder. As I said earlier, I tried to bleed the system, but must not
> have done the job properly. The second time around, I found a lot of air
> still trapped in the fluid. I have driven it a couple of times since
> then, and the brakes seem to be working fine. Hope this helps.
>
> John
>
> -----Original Message-----
> From: V SCHWARTZ [mailto:vsaws@optonline.net]
> Sent: Friday, May 05, 2006 7:17 AM
> To: Hutterer, John (MPAU); Military Vehicles Mailing List
> Subject: Re: [MV] M35 brakes
>
> Hey John, What was the problem with your M816 before you changed the
> master cylinder? I have been going nuts with the brakes hanging up on
> my
> 816 for almost 2 years. I have changed 3 airpacs and 2or three master
> cylinders plus the flex lines in the back. I have had my suspicions all
> along that the problem is something stupid that either I have done or
> failed to do properly.
> ----- Original Message -----
> From: "Hutterer, John (MPAU)" <john.hutterer@smiths-medical.com>
> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> Sent: Thursday, May 04, 2006 8:59 AM
> Subject: Re: [MV] M35 brakes
>
>
>>
>>
>> Patrick,
>>
>> I have an M816 wrecker and was having similar problems. It was filled
>> with new silicone brake fluid, after I had replaced the master
> cylinder.
>> I thought that I had bled the brakes properly, with help from a friend
>
>> pushing on the pedal, but must not have been as thorough as I should
>> have been. I let the truck sit for several days, and then hooked up a
>> pressure bleeder to it. I connected a clear plastic hose to each
>> bleeder valve and watched the fluid as it came out. I was absolutely
>> amazed at how much air was still trapped in the system. It took me
>> nearly a gallon of fluid to bleed it completely out. A friend, who is
>> a mechanic for the Army Reserve, says that it is his standard practice
>
>> to bleed the brakes on a vehicle, let it sit over night, and bleed
>> them again in the morning. He invariably finds that there is still air
>
>> trapped in the system in the morning, and that it comes out with the
> second bleeding.
>> The brakes on my 5 ton work perfectly now.
>>
>> John
>>
>> -----Original Message-----
>> From: Military Vehicles Mailing List [mailto:mil-veh@mil-veh.org] On
>> Behalf Of Patrick Jankowiak
>> Sent: Wednesday, May 03, 2006 8:46 PM
>> To: Military Vehicles Mailing List
>> Subject: [MV] M35 brakes
>>
>> Sometimes I notice that the brake pedal has alot of travel before
>> 'hitting the brakes' when the truck's running gear is cold. After run
>> a while down the hiway, the pedal does not travel as far before
> 'hitting'
>> the brakes, even though the brakes have not been used since I pulled
>> away from the starting point. No problems stopping, DOT5 fluid, but
>> this is odd, anyone know what it might be?
>>
>> Patrick
>>
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> ******************************************
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> No: 362847 Registered Office: 765 Finchley Road London NW11 8DS, UK
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