From: Patrick Jankowiak (recycler@swbell.net)
Date: Tue Nov 09 2004 - 16:38:48 PST
brings up an interesting but maybe stoopid thought.. why not use
an 'intake brake'?
Bjorn Brandstedt wrote:
> Joe,
> Downshifting to slow down implies engine braking.
> With the exhaust brake (or jake brake) you have a lot more engine
> braking power and can head down the mountain at a faster pace for a
> given load.
> The only thing that can go wrong with the exhaust brake is the
> possibility of the butterfly valve locking up in a closed position,
> which would overpressurize the exhaust system if the operator didn't
> notice the situation. During my short test drive, I was careful not to
> step on the accelerator until the valve was wide open again after a
> braking run. The noise tells the story.
> Overpressurizing the system can cause the exhaust valves to "float" and
> that can certainly do severe damage to the engine.
> The military used the exhaust brake on the 10-ton trucks when they were
> equipped with diesel engines. The gas engines had apparently enough
> engine braking power by virtue of the throttle valve.
>
> To me the exhaust brake is a safety feature.
>
> Bjorn
>
>
>> From: "Joe Garrett" <j.garrett@verizon.net>
>> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
>> Subject: Re: [MV] M35 Exhaust Brake installation
>> Date: Mon, 8 Nov 2004 17:53:10 -0800
>>
>>
>> When I was driving a bus, my employer had a policy about downshifting to
>> slow down. Brake linings are a lot cheaper than engines. This would
>> seem
>> to apply here, too.
>>
>> Joe Garrett
>>
>>
>> -----Original Message-----
>> From: Military Vehicles Mailing List [mailto:mil-veh@mil-veh.org]On
>> Behalf Of Sonny Heath
>> Sent: Monday, November 08, 2004 5:22 PM
>> To: Military Vehicles Mailing List
>> Subject: Re: [MV] M35 Exhaust Brake installation
>>
>>
>> Maybe that answers for the good condition my Freightliner is still in
>> after
>> 444,000 miles. I don't have an exhaust brake.
>>
>> Sonny
>>
>>
>>
>>
>>
>>
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>
>
>
>
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