Throttle Body Shaft Linkage swap

Ben Swann benswann at
Fri Jul 20 14:11:07 EDT 2007


Thanks. I was able to take them apart.  Turns out not only the shaft was
longer on the 5000 one, but also larger diameter, so cant swap them.

I'm working on adapting the end - not trivial.  

Surprising I have not seen anyone complain about issues with interference
between the throttle bodies and fuel rails when doing EFI conversion.  The
cable end smashes into the 034EFI fuel rail on every throttle body and
manifold combination I've tried.  The only one that is close is the Ur Quattro
TB where I could bend the eye that the cable end fits in.  No way to get the
5000 manifold and TB to work with this fuel rail.


-----Original Message-----
From: Ado Sigal [mailto:a.sigal at] 
Sent: Friday, July 20, 2007 1:58 PM
To: Ben Swann
Cc: urq at
Subject: Re: Throttle Body Shaft Linkage swap

No BTDT, but in essence you are going to end up with shorter shaft with 
slot for TPS. Wouldn't be easier to cut and file the shaft to suit, than 
to remove butterfly and all that. Even if it fails, you can always do 
the swap. BTW, shaft is one piece, and 2 sunk in screws hold the 
butterfly. Must clean the shaft before removing, and adjust butterfly 
and Locktite the screws after the swap.


Ben Swann wrote:

>I am trying to swap the shaft and certain parts from the later MC-1 throttle
>body to an earlier WX (Ur Quattro) throttle body.  This is so I can use the
>later switch(actually TPS) from later models.  
>ANY BTDT on removing the shaft?  Is the shaft one piece that goes all the way
>through or does it split somewhere? Any diagrams.

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