[ROVERNET - UK] Eimination of the AED on a P6B ??

Jim Hall jimhall at frii.com
Sat Nov 24 05:12:57 GMT 2007


Converting to manual operation of the SUs is less expensive by far, and 
works just fine. You don't have to add a choke, it is already there, just 
not connected. What is missing is the fast idle cam and the clamps for a 
choke cable. I got the cams (left hand and right hand) off of junk carbs 
from a 72 MGB, but I bet the same cams were used on other cars. Get the 
little bushings from the choke spindles too, because the Rover setup has 
bushings that are too short when you add the cams. I used a single choke 
cable, but I have also seen it done with a double cable from a Triumph (one 
knob operates two cables), which is probably easier. With the single cable, 
I had to fabricate a linkage between the carbs, which was very difficult to 
get right. The early 3500 cars had manual chokes, and the official 
3500/3500S shop manual has some illustrations that help. Takes a lot of 
fiddling around, but I have heard that the four-barrel carb conversion 
requires some work for the throttle linkage.

Have fun.
Jim Hall
'70 3500S in Colorado

----- Original Message ----- 
From: "phing" <phing at videotron.ca>
To: <rovernet at lyris.ccdata.com>
Sent: Monday, November 19, 2007 9:43 PM
Subject: [ROVERNET - UK] Eimination of the AED on a P6B ??

> Hi
> I'm starting the Rip Van Winkle Revival project by cleaning out the carbs 
> and fuel system . The primary objective ,diversion of the majority of the 
> fuel flow from the vapour recovery systems into the engine has been 
> achieved by re-opening the carburetor needle valves, flushing the float 
> chambers  and freeing up the floats .After reading the shop manual I have 
> concluded that the AED seems to be complex way to manage a cold start 
> .Assuming no environmental constraints , is it possible to junk the whole 
> system and install a conventional choke on one or both of the standard SU 
> carbs on a  NADA spec 1970 P6B 3500S ?,
> Or would it be easier simply to junk the SUs and fit a honking great 
> American carb and inlet manifolding ?
> All advice would be most welcome
> Cheers
> Patrick
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