[T2] What's With the Popping Noise in the Exhaust?

[Al Brase]

I still say there should be no combustion in the exhaust pipe unless your
are running a thrust jet with an afterburner.
Al

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On Sun, Jul 2, 2017 at 2:36 PM, <accessys at smart.net> wrote:

>
>
> I improved the problem with midgrade gas but not completely eliminated it.
> try a tank or two
> gas has gotten lower octane since engines were first designed, what was
> regular is now midgrade
>
>
> Bob
>
>
>
> On Sat, 1 Jul 2017, Roger Lemberg wrote:
>
> Date: Sat, 1 Jul 2017 20:23:12 -0700
>> From: Roger Lemberg <phroggie at ieee.org>
>> To: type2 at type2.com
>> Subject: [T2] What's With the Popping Noise in the Exhaust?
>>
>> I’ve been living with this problem since my parents owned a ’69 bus and I
>> know I’m not the only one.
>>
>> Sometimes, when the car is “overrunning” the engine (long steep
>> down-hills, engine braking) there’s a popping noise (backfire?) coming from
>> the exhaust.
>>
>> Is there something that can be done?
>>
>> Peace,
>>
>> Phrogbus and its Phroggie
>> (’70 Sportsmobile conversion)
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>>
>>
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