[Mgs] Advice please, bad miss

[Hans Duinhoven]

Had a similar experience with my 1970 Puch moped. When the engine went on normal operational temperature, I heard a nasty bang noise and the engine lost a lot of power. I managed to reach home.

Later when cold the engine started well again, but much sooner the engine power was lost again.

So I replaced the coil and the problem seamed to be away.

Quickly at the next longer run the engine started to show the very same issues.

I then replaced anything within the ignition, but not the coil of course.

The problem did not go away of course.

A good friend with lots of experience and parts got fed up with this nasty problem and replaced the entire ignition set.

Problem gone.

Had to pay him some $ 30 and I was allowed to keep the faulty set as well.

Replacing the coil again gave me a very nice spare set.

 

Cheers,

Hans

 

’71 BGT back on the road again after an MOT failure of the UJ joint of the steering shaft and also some front suspension bushings were showing to much play.

Another MOT failure was the demister did not work – bit nasty job to reconnect the hose again solved it nicely

Had a nice 230 miles run last Sunday and all went great

Van: Mgs [mailto:mgs-bounces at autox.team.net] Namens Richard Lindsay via Mgs
Verzonden: zondag 28 augustus 2016 14:28
Aan: Simon Matthews
CC: mgs at autox.team.net List
Onderwerp: Re: [Mgs] Advice please, bad miss

 

Thanks for posting that, Simon! Read the stacks of workshop manuals and they say, 'condensers almost never fail'. 'Almost' is a dangerous word and it fogs our troubleshooting vision. But well done to you!

> What's that old saw? 90% of fuel problems are ignition problems.
>
> I swapped out the almost new condenser and the problem went away.
>
> Simon

And why after almost a year, am I writing this? Firstly, my MG TD restoration awaits completion, but I uncovered it yesterday while cleaning up the shop. Some of the old excitement returned. Secondly, my old '69 Silver Shadow is at a commercial shop getting new plugs, wires, cap, rotor, coil, ballast, points, and condenser. And guess what; The 'almost new' condenser had failed, leaving that honkin' big 6 liter V8 without enough spark to start! Condensers DO fail, and when they do, diagnostics become difficult because, "condensers almost never fail." Maybe the piles of literature should read, "condensers almost never fail, except for the poorly made replacements available in the 21st century."

-rick, with 6 Brirish cars, 3 Italian cars, 1 German, 1 Swedish, and 1 Japanese!



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