[V8] Vacuum leak

[Dave Saad]

I washed mine off and blew into the diaphragm end when it was still wet. That is how I first noticed the leak. It also would not hold vacuum, but it is not clear to me that it should. I need to try a known good one to be sure.

Sent from my iPhone

On Jun 13, 2013, at 10:49 AM, "Ed Kellock" <ekellock at gmail.com> wrote:

> This is all very interesting and I will be checking out a couple of cars
> right away.
> 
> Thanks!
> 
> Ed
> 
> 
> 
> -----Original Message-----
> From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On Behalf Of
> Dave Saad
> Sent: Thursday, June 13, 2013 8:20 AM
> To: v8 at audifans.com
> Subject: Re: [V8] Vacuum leak
> 
> 
> Yes I am. That is usually called the EVAP - isn't it?
> 
> I have some drive time on the car now and the stumble off closed throttle is
> totally gone. That diaphragm leak must have been big. In fact, I am finding
> myself taking the "long way" whenever I get in the car now.
> 
> Dave
> 
> Sent from my iPhone
> 
> On Jun 12, 2013, at 7:36 AM, Ronald G Wainwright <ron_01056 at yahoo.com>
> wrote:
> 
>> I think ur referring to the Carbon Canister Valve.....
>> 
>> Ron
>> 
>> Sent from my iPhone
>> 
>> On Jun 12, 2013, at 9:27 AM, Dave Saad <dsaad at icehouse.net> wrote:
>> 
>>> 
>>> The valve behind the coolant tank. I siliconed mine up and my idle 
>>> issue is gone. The diaphragm leaks around the seam where the two 
>>> pieces are assembled. FYI the diaphragm and the electrical valve are 
>>> separate pieces and just press fit into the rubber mounting piece. I 
>>> am pretty sure I need to replace both parts but for now it is running 
>>> fine.
>>> 
>>> BTW, my oil leak was mostly the distributor mounting plate. I just 
>>> siliconed that too.
>>> 
>>> Dave
>>> 
>>> Sent from my iPhone
>>> 
>>> On Jun 11, 2013, at 11:33 AM, "Ed Kellock" <ekellock at gmail.com> 
>>> wrote:
>>> 
>>>> Dave,
>>>> 
>>>> I'm trying to figure out which valve you're talking about. Is the 
>>>> "evap valve" something involved with the climate control system or 
>>>> the crankcase ventilation system?
>>>> 
>>>> Thanks!
>>>> Ed
>>>> 
>>>> 
>>>> 
>>>> -----Original Message-----
>>>> From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On 
>>>> Behalf Of Dave Saad
>>>> Sent: Tuesday, June 11, 2013 8:02 AM
>>>> To: v8 at audifans.com
>>>> Subject: [V8] Vacuum leak
>>>> 
>>>> 
>>>> I think I found my problem. The evap valve leaks badly around the 
>>>> diaphragm. There is a simple test in the manual and mine failed. I 
>>>> am attempting to silicone it back together for now. These things are 
>>>> designed to fail. Bad Audi, bad bad Audi.
>>>> 
>>>> I also found the oil leak - I hope it is just the valve cover but it 
>>>> might be the right side cam bearing. That will suck. Once again 
>>>> German rubber doesn't last as long as a bowl of cereal. This gasket 
>>>> has about 30k miles on it.
>>>> 
>>>> Dave
>>>> 
>>>> Sent from my iPhone _______________________________________________
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