[Fot] Anti Runon Valve ADU9535

riverside at southslope.net riverside at southslope.net
Tue Aug 7 12:22:59 MDT 2012


the refusal to achieve a slower idle speed makes me suspect a vacuum leak.


art de armond

-----Original Message----- 
From: Larry Young
Sent: Tuesday, August 07, 2012 12:37 PM
To: Kas Kastner
Cc: fot
Subject: Re: [Fot] Anti Runon Valve ADU9535

I've got the idle as low as it will go at about 1,000.  I think I might
get it down to 800 with some carb work, but in the past it would still
occur at 800.  I have removed the vacuum retard, which helps the idle.
I've been letting the clutch out to kill it for the past 25 years and
would like to fix the problem rather than continue to work around it. I
was hoping a carbon free engine after the rebuild would cure it, but it
didn't.  I don't fully understand the later TR6 setup, but I've heard it
requires special carbs and was tied into the charcoal canister.  The
ADU9535 seems like the simplest way to go for a retro fit, since it
could be tied into the brake booster line.  Ed, if you've got one I'll
be glad to take it off your hands.
Larry

On 8/6/2012 9:30 PM, Kas Kastner wrote:
> In the olden days it was advised to reduce the idle rpm and that would
> cure the problem, no valve, just a screw driver.
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