Re: IML: 71 auto temp II

["Robin Giesbrecht" <robings@xxxxxxxxxxx>]

On my car they are all white. But yes they are supposed to be one way check 
valves. I bought myself a vacuum pump(hand held) because I was getting tired 
of the guess work. Found a lot of things that were not working like they 
were supposed to.Finally cut one of these stock check valves open and no 
surprise they don't work. Surprising they work when new. By the way I bought 
some cheap plastic check valves aftermarket but they also were ####. Paid 
about $20.00 each for the two from the hydraulic shop but they are real 
valves.The valves came with threaded ports so I screwed some fittings into 
ends sealed with teflon tape(plumbers tape) so I could connect vacuum hoses 
to them. I can go out to the car and try to get a name/part number if anyone 
wants that info. They are considerably larger than the stock valves and are 
not a real tidy install but I like having the switching working properly.Pay 
attention to the book on how these valves are routed(you will need a few T's 
for connections) and draw a diagram of old valve connections before removing 
old valves.(easy to get confused)

Robin Giesbrecht
72 Imperial

> From: "Dave" <Wilkerbeast01@xxxxxxxxxxx>
> Reply-To: mailing-list@xxxxxxxxxxxxxxxx
> To: <mailing-list@xxxxxxxxxxxxxxxx>
> Subject: Re: IML: 71 auto temp II
> Date: Tue, 1 Feb 2005 17:35:30 -0800
>
> Are these the 2-tone, green and white one-way vacumn check valves?
> David C. Wilker Jr.
> USAF (RET)
> "I'm figuring out what's good for me, but only by a process of elimination"
>   ----- Original Message -----
>   From: Imp75coupe@xxxxxxx
>   To: mailing-list@xxxxxxxxxxxxxxxx
>   Sent: Tuesday, February 01, 2005 5:21 PM
>   Subject: IML: 71 auto temp II
>
>
>   Robin
>
>   "Also there are two vacuum check valves situated along all the
>   vacuum lines that run from right side of under dash to the temp control.
>   They are at floor level and they are cheap pieces of ####. I replaced 
> mine
>   with industrial check valves from a hydraulic shop and finally got my 
> system
>   working properly. "
>
>   Could you elaborate on this point, very interesting to me, having a 73 
> with AutoTemp II




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