[ROVERNET - UK] Rover 2000 TC running on.

[James Radcliffe]

>
>--- Larry <lewill at ctcweb.net> wrote:
>
> >   The TC keeps running when I turn it off. I
> > retarded the ignition to TDC
> > and this didn't fix the problem. The best octane
> > that I can get here is 91
> > count from the Chevron station. Any suggestions?
> > Octane boosters? Retard the
> > ignition to a few degrees below TDC? What timing is
> > correct with the fuel
> > that we have now? Also does anyone know how many
> > Rovers are showing up in
> > Portland Oregon this weekend? Thank in advance.
> > Larry
> >
> >
> > _______________________________________________
> > rovernet mailing list
> > rovernet at lyris.ccdata.com
> > To unsubscribe, go to this web page, look near the
> > bottom and follow instructions:
> > http://mailman.nipltd.com/mailman/listinfo/rovernet
> > Back-up list and photos at:
> > http://autos.groups.yahoo.com/group/Rover_net/
> >
>My Rover 2000 auto used to do that on hot days. This seemed to be a problem 
>when leaded petol started to be replaced with lead replacement petol, which 
>happened as late as year 2000. The problem seemed to be cured by firstly 
>having the head off and decarbonising, while regrinding the valves. The 
>mechanic thought that the burnt valve may have been caused by the over run. 
>I now run on premium unleaded, 98 research octane (about 93 on the pumps on 
>the US (R+M)/2). I also add Morey's upper cylinder lube as a lead additive, 
>and I feel that this additive keep the engine clean. The run on problem 
>used to be worse on hot days, and I would try to shut down with the car in 
>Drive, so the RPMs would be lower. Also my mechanic set the timing to 8 
>BTDC to take advantage of the high octane fuel.

James.