Jim,
I have tubular headers on my TR4 with DCOE WEBERS and use the very neat
cable pull Assembly from WEBER part number LP 4000 which mounts on one of
the carbs. Works faultlessly.
Kind Regards
Peter Vucinic
TR-4
----- Original Message -----
From: "J.C. Hassall" <jhassall@blacksburg.net>
To: <fot@autox.team.net>
Sent: Monday, July 31, 2006 4:33 AM
Subject: [FOT] TR4 Weber linkage with tubular headers
> Amici,
> My TR4 has tubular headers which interfere with the linkage I planned for
> the dual Webers with Canon manifolds. The manifolds have a boss on top to
> support a shaft and linkage to drive the butterflies; the rear manifold
> has a boss underneath to support a bellcrank. The setup is similar to the
> Moss setup at
>
><http://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=29794&SortOrder=1>
> I planned to use a bellcrank under the carbs to translate horizontal
> accelerator arm motion to vertical to pull on an arm on the shaft mounted
> above the carbs. Problem is, one tube of the headers interferes with the
> bellcrank, so I only have about 1/4" travel. Fine if I don't want
> speeding tickets, but no fun to drive.
>
> Plan B is to fabricate a cable, perhaps from bicycle cable parts, but I'll
> have to fabricate a support tube to ensure that the cable pulls straight
> down. And of course add a return spring for safety.
>
> Plan C is to fabricate a spacer to stand off the the bellcrank from the
> manifold mounting boss by about 1.2", which should clear the manifold, and
> rely on the heim joints to accommodate all the angular mismatches.
>
> Anyone have suggestions for a better installation?
>
> TIA
>
> Jim
> --
> Jim Hassall
> Blacksburg VA
> jhassall@blacksburg.net
> '63 TR4 in autox preparation - 90% finished, 90% to go
>
>
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