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

[accessys at smart.net]

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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