I'm so glad you mentioned that for people.
Most people working on their vanagons at home will have ready access to
a can of spray carb cleaner , but not a smoke machine.

I have not tried it ever, but propane can be used too,  I hear.

On 6/26/2012 8:38 PM, Dennis Haynes wrote:
> Smoke testers are real nice for finding vacuum and vapor line leaks.
>
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> Scott Daniel - Turbovans
> Sent: Tuesday, June 26, 2012 10:41 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: CO Adjusting Screw, Throttle Valve Switch Test Light Video etc.
>
> On 6/26/2012 6:23 PM, neil n wrote:
>> The TB seal may have been leaking.
> Hi, don't you test for intake leaks with spray carb cleaner ?
> that's the common way to find intake leaks on a running engine.
>    Or listen with a listening hose, that's very effective too.
>
> I have found as many as 8 to 10 tiny air intake leaks from TB, to plenum, to
> intake runner boots, to the the heads.
>
> one MUST chase down any and all intake leaks, no matter how small, if they
> want the engine to do everything right.
>