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Re: [Spridgets] pinking problem

To: Jim Johnson <bmwwxman@gmail.com>
Subject: Re: [Spridgets] pinking problem
From: Marc <smarc@smarc.net>
Date: Mon, 04 Aug 2008 14:08:18 -0400
I can't hook it up, as the diaphram is vibrating rapidly - don't want to 
destroy a newly rebuilt vac unit.... Oh, and to answer the earlier 
question, the vac line is hooked to the manifold. Am I to understand 
this is incorrect?

Jim Johnson wrote:
> Marc,
>
> Do you mean you have been driving the car without the vacuum line 
> hooked up? Reconnect it and tell us what it does.
>
> Knocking/pinging related to timing problems/too low octane/improper 
> valve lash...etc usually is most noticeable under load. Engine 
> overheating can cause it as can an improperly torqued knock sensor on 
> engines so equipped.  Again, however, it should be most noticeable 
> under load (acceleration or driving uphill).  A knock or ping while 
> not under load may be something more diabolical...
>
> On 8/4/08, *Marc* <smarc@smarc.net <mailto:smarc@smarc.net>> wrote:
>
>     What I wasn't clear about is the advance has NOT been hooked up at
>     all.
>
>
>     Billy Zoom wrote:
>     >> It generally occurs (or is only noticeable)
>     >> under extremely light throttle -
>     >>
>     > Do you have it hooked up to manifold vacuum instead of venturi
>     vacuum?
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