Condensor getting faulty?
Cheers,
Hans
----- Original Message -----
From: "Paul Hunt" <paul.hunt1@blueyonder.co.uk>
To: "Aaron Whiteman" <awhitema@panix.com>; "MG Mailing List"
<mgs@autox.team.net>
Sent: Monday, October 26, 2009 9:51 AM
Subject: Re: [Mgs] too rich or too lean?
> Could be almost anything, especially since you have recently worked on
> ignition and carbs. What does the tach do for a start? If that is
> flicking all over the place then it is an ignition LT problem. If it is
> relatively steady then HT or fuel. As it happens when cruising you may be
> able to reproduce it with your head under the bonnet, if so clip a timing
> light onto the coil and plug leads and watch the flashes. Erratic
> flashing on the coil lead indicates coil or possibly condenser problems.
> Steady on the coil lead but irregular on the plug leads (remember the coil
> lead flashes four times faster than any one plug lead) indicates that the
> rotor or cap are breaking down, although that would be more likely under
> acceleration than cruising. While on No.1 lead point it at the timing
> marks to check that it is about right, and not jumping around. If all
> that is OK then it looks like carbs. Unlikely to be fuel starvation as
> that would be worse under acceleration. Could be the aforementioned vacuum
> leak, test with propane or carb cleaner, or possibly float valves, a
> slight leak causing mixture problems under light fuel demand but not under
> heavier demand. If you have an SU pump turn on the ignition but don't
> start the engine, and listen to the clicks. Once the float chambers have
> been filled the pump shouldn't click more than once every 30 secs. More
> than this indicates a leaking float valve or possibly a leaking one-way
> valve in the pump inlet, although this latter is more likely to cause
> problems under high fuel demand than low. Remove the float chamber vent
> pipes to see if one or other carbs does eventually start to overflow, this
> can take several minutes, so disconnect the coil to prevent it
> overheating.
>
> PaulH.
>
> ----- Original Message -----
>> ... The spitting issue was much worse coming home. Essentially,
>> after a half-mile of steady speed cruising, she would start this pop-
>> pop-pop shutter. If I were climbing a hill, or accelerating
>> moderately, no problems. I've recently set the timing and set the
>> carbs.
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