Throttle linkage

[Paul Bearman]

Can anyone supply some pics of the original throttle linkage set-up for the Holley carb.
I would like to bring the throttle cable towards the front of the engine rather than over the top of the exhaust system . I have designed my own linkage but it would be nice to see how the real engineers did it.

many thanks, Paul Bearman.

Hi Paul

I run my throttle linkage over the front of the engine, it avoids the heat from the exhust amongst other things. I have no idea what the original linkages were but I use rose joints at both ends of the cable. The cable itself is an historic F1 cable and is about 2mm diameter in a heat resistant (allegedly 1000 degrees C!!!!)sheathing. Anyway it has never gone wrong whereas before I used to melt a standard cable once a year. Frank does lorry cables which are designed for getting past big turbo engines without melting and they seem to work well from what I have heard.
Anyway getting back to your query, rose joints are a good solution!
All the best
Malcolm

[Frank Catt]

Paul, Mac Kerr at Maidstone has a trick bit of kit to connect his cable to the carb. but it still goes over the sexhausts, FGrank

The original cars had the throttle cable entering through an aperture in the centre of the left hand side of the cold air box. It then connected to a fairly simple rose jointed linkage. There is a good exploded view of the linkage and carbs in the J.W. Automotive parts manual (diagram H), which I believe is reproduced in Trevor Legate's new book.