[T2] Engine intermittently turns off while coming to a stop

[accessys at smart.net]

years ago I once had a problem (fuel system) after driving for a while 
took a long time to find a small pinhole that was tight when cold but 
after engine got warm the rubber got softer and the vacuum pulled the hole 
open just enough to get air in the system.

YMMV
Bob


On Wed, 3 Sep 2014, Max Bronsema wrote:

> Date: Wed, 3 Sep 2014 20:45:50 -0700
> From: Max Bronsema <max.bronsema at gmail.com>
> To: Bob carroll <accessys at smart.net>
> Cc: Robert Mann <robtmann7 at gmail.com>,
>     VW type 2 late aircooled <type2 at type2.com>
> Subject: Re: [T2] Engine intermittently turns off while coming to a stop
> 
> Hi again,
>
> My bus does have the booster, I am in the US, WA state, so I have always
> had the booster. I've never had issues with it as of yet. I ran through all
> of the tests, except Andy's sniffer test so I'll address that one tomorrow.
>
> Here is what I did try:
>
> 1) Start the bus in neutral with my foot depressed on the brake pedal.
> There was no noticeable fade that I could sense.
> 2) With the bus idling, I pumped the brakes and noticed no difference in
> the engine RPM.
> 3) I do not see any fluid loss from the normal culprits.
>
> Still left to diagnose:
>
> 1) Andy suggested pulling the vacuum hose from the engine and seeing if
> there is any brake fluid smell.
> 2) It has also been suggested to test for the vacuum from this hose, and
> I'll try my best to do that as well.
>
> Would the problem exacerbate itself the warmer the bus engine? I only
> noticed it at the end of a 120 mile drive or is that just a coincidence?
>
> Thanks for all of the ideas, it is always an occasion as we all know when
> working on a bus and I am very grateful you share your knowledge so
> willingly.
>
> Max
>