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Re: Distributor Problem-need help

To: "MG List" <>
Subject: Re: Distributor Problem-need help
From: Max Heim <>
Date: Mon, 9 Aug 1999 14:40:45 -0700
If the plate doesn't return after rotation (as if springloaded) you've 
got a bum vacuum advance unit. This just happened to me -- the spring 
link between the vacuum diaphragm and the breaker plate broke. The 
diaphragm itself can also go bad. Either will result in a retarded 
running condition.

However, this really shouldn't affect starting. Frequently poor starting 
can be solved simply by replacing the cap and rotor, even if they appear 
perfectly good. If the problem manifests in damp conditions this is 
almost always the case.

You might want to wrap some electrical tape around that wire just to be 

Hope this helps. had this to say:

>'72 B which has been totally reliable for last 10 years didn't start the 
>other day.  Had to go to work, but later, after work --started as usual, and 
>ran fine that night and the next day.  A week later----same problem.  Here's 
>some facts.  It is definately getting fuel.   Took off the cap--cleaned 
>--inspected cap -- all looked good.  Hears were it gets a little hairy---due 
>to my limited knowlege of distributors.  Did find one wire which was frayed 
>in distributor.  Made sure it wasn't grounding anywhere.  The plate which 
>points, and condenser are attached  can be rotated manually by hand 
>it return to the original spot when released?   I was able to get it started 
>but it's running as if it is highly retarded--no pep ---very slow response.  
>I'm sure it's something minor and tomorrow I'll try to figure it out.   Any 
>ideas, or its it just time to switch to an electronic ignition?  If so --can 
>they be greatly retarded , as I have had to do that to get through 
> Any help is greatly appreciated.      Jerry


Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the red one with the silver bootlid.

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