[DMCForum] Re: Vacuum questions (Martin)

["content22207" <brobertson@xxxxxxxxxxxx>]

My car came with a check valve between the passenger intake barb and
the Tee. May not have been factory (my car also came with a rear view
mirror button glued to the windshield, which apparently isn't factory
either), but that's what I had. Even if there is a check valve on the
brake servo, another inline isn't going to hurt anything.
 
My car had no check valve on the left side of the engine compartment
-- 3/8" hose ran straight from the canister, through the pontoon, to
the Tee (basically adjacent to the heater core shutoff valve). 100%
guarantee you need a check valve inline somewhere, otherwise you will
lose the panel vents at throttle. 

I rather appreciate power assist when I need to make a panic stop on
the highway BTW...

Bill Robertson
#5939

>--- In DMCForum@xxxxxxxxxxxxxxx, Martin Gutkowski - DMUK
<martin@xxxx> wrote:
> Not quite sure what you mean here Bill - the non-return valve on the 
> left of the engine compartment is to "store" a vacuum in the cannister 
> located inside the pontoon. This feeds the mode switch and allows vents 
> to be changed when at throttle and when engine off.
> 
> Brake servo a) has it's own non-return valve and b) you don't brake
very 
> often while at throttle
> 
> Martin
> 
> content22207 wrote:
> 
> > Check valve is actually located between a Tee in that line (other side
> > goes to the brake booster) and the barb on passenger intake rail. Has
> > to be otherwise you'd lose vacuum to the brake booster at throttle.

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