<VV> Downshift Timing Valve

Larry Claypool vairshop at sbcglobal.net
Mon Nov 19 18:13:06 EST 2007


open side of valve goes towards transmission; end with the triangular 
supports goes towards valve body. this has been covered in the communique 
before.
lc
----- Original Message ----- 
From: "J R Read_HML" <hmlinc at sbcglobal.net>
To: "Larry Claypool" <mr.vair at urbancom.net>
Sent: Monday, November 19, 2007 10:02 AM
Subject: Fw: <VV> Downshift Timing Valve


> Hi,
>
> Maybe you can help Smitty (and VV) out on this one?
>
> Later, JR
>
> ----- Original Message ----- 
> From: "Smitty Smith" <vairologist at verizon.net>
> To: <virtualvairs at corvair.org>
> Sent: Monday, November 19, 2007 9:11 AM
> Subject: <VV> Downshift Timing Valve
>
>
>> Smitty Says:  Maybe I am being hard headed about this, but I really do
>> have a desire to get this right.  "Refresher for those who care".  GM
>> added said valve in 63 to PG transmissions and was first referenced in
>> the 64 shop manual in a brief statement with a lousy picture.  There is
>> no publication, picture, or written statement from GM that describes
>> which way the little cylindrical valve goes in the hole in the valve
>> body.  Bob Ballew picked up on that fact and and wrote a good description
>> of the valve function but still did not say which way the valve goes in
>> the hole. He did challenge a tech tip by Bob Kirkman on the subject.
>> When you look at his drawing in his book it shows the flat end inserted
>> into the transmission and the pointy end facing the valve body.  I think
>> a lot of the problem I and others have is arriving at a common
>> understanding of which way is"up".  Is "up facing the mechanic when he is
>> working on the transmission or is "up" in relation to the operating
>> position of the transmission.  This whole thing has no value until
>> someone opens a transmission and the thing pops out on the table and the
>> mechanic says, where the H did that come from and how does it go when I
>> put it back?
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