[Rovernet] P5 problem persists

garrett bourque gbbourque at gmail.com
Mon May 25 09:30:53 EDT 2015


Hello Peter,
  Another suggestion is to take the electronic ignition system off,
reinstall the points and condenser.  Electronic systems can overheat and
stop working...until they cool off again.
  Good luck, Garrett Bourque

On Mon, May 25, 2015 at 3:40 AM, roger.matheson--- via Rovernet <
rovernet at rovernet.org> wrote:

> Hi Peter,
>
> You have us all enthralled, like a soap opera but with no humour
> whatsoever.  Have you tried Alan's clever idea about eliminating fuel or
> electrics by squirting easy start into the carby throats, when the engine
> has stopped. Cough and run for a few seconds indicates fuel. No running
> suggests electrics. It all seems to be related to temperature and you seem
> to have checked all possibilities.
>
> But what about vacuum and that system. Now I am out of my knowledge here
> but I wonder whether loss of vacuum when hot means that the Su's will no
> longer work correctly hence creating fuel starvation (but not potential for
> supply from the pump). Try removing the vacuum tube to the booster and
> block the connection on the inlet manifold. Drive carefully (brakes but no
> booster) alternatively just replace the pipe. I wonder whether a crack in
> the inlet that opens up when the engine gets hot may also be a culprit.
> Perhaps try a stethoscope arrangement with a piece of flexible pipe. With
> one end at your ear move the other end over the inlet manifold. Such a
> fault significant to stop an engine would be detected by a loud hissing
> sound. With the air inlets off and some one reving the engine, observe the
> movement of the pistons when cold. Compare when the engine is acting up.
> Try also removing the crankcase ventilation pipes and blocking the
> connections to the carby's.
>
> Cheers from roger in Oz
>
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