Kent Kinard kkinard at wcc.net
Wed Oct 10 14:58:08 BST 2007

Joseph may be confused by David's comment about the ingnition amplifier 
module.  NAS distributors have the amplifier mounted inside the 
distributor...bad idea.  If this goes bad you must replace the 
distributor.  You can use a later distributor with the external module 
or use another distributor..Mallory, Buick, MSD, etc.  Some Rover 
modules are mounted on the outside of the distributor and some are 
mounted on the fender well (inner wing).

Other possible trouble spots: coolant temperature switch, cold start 
injector, relay for this injector (I think it has one), or possibly the 
extra air valve.

The ECU needs to be done anyway, so I would start there.

All good advice.  As a team, Rovernet does a great job.

Kent K.

David Read wrote:

> Joseph
> A couple or three possibilities ...
> * Have you replaced the ignition amplifier module on the radiator side 
> of the dizzy?
> Could also be injectors ... they are fired in two banks of 4.
> Possible trouble spots ...
> * Check the soldered joints around the large power driver transistors 
> in the ECU.
> * Check the connections and wiring in the injector ballast resistor box.
> Both have given me grief in the past.
> Cheers and good hunting
> Dave
> South Oz
> Lewis, Joseph (Michael) wrote:
>> Hello fellow Rover enthusiasts -- I have a problem and I hope someone 
>> can help me solve it. MY federal SD1
>> with fuel injection recently started running very rough. It feels like I
>> lose a cylinder or a bad firing miss. It doesn't occur during cold
>> starts but within 3-4 minutes it occurs. The loss of power is dramatic
>> needless to say.
>> I changed the wires, plugs, cap and rotor but this didn't solve it.
>> Any ideas, guesses or experiences with something like this? Thanks for
>> any help.
>> J. Michael Lewis
>> Gambrills MD (outside Annapolis)
>> 1980 SD1 turmeric
>> 1980 SD1 aqua
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