[TR] Not TR - MGB

[Jonas Payne]

Don,

Good point, but the fact that it cuts out instantly and the fact that if it's
jacked up at the front, the fuel pump is still pumping just fine.

Loose wires are "plumb bobs" they very much care about inclination if they are
shorting against something.  I have no idea what is happening inside the black
boxes - are they sensitive to gravity when they are failing?

Fuel starvation is generally accompanied by some sort of coughing or
sputtering or lack of power, not instantaneous death.

Jonas Payne
PBR Consulting Services, LLC
702.882.6711

-----Original Message-----
From: Don Hiscock [mailto:don.hiscock at gmail.com]
Sent: Friday, August 15, 2014 5:39 PM
To: Jonas Payne
Subject: Re: [TR] Not TR - MGB

Boy, gravity normally points to fuel flow -- electrons don't care about up and
down that much.

What makes you sure it's ignition?  I'd have guessed fuel delivery.

Rgds,

Don

On 8/15/14, Jonas Payne <jpaynepbr at cox.net> wrote:
> I have a 1980 MGB in the shop with the original OPUS electronic ignition.
>
> When the car is warm and it gets on an incline, it suddenly quits - no
> coughing, sputtering, anything.  It then fires up after a couple
> minutes and goes along fine.
>
> I'm convinced it is an ignition problem, but clearly not the coil,
> wires or plugs.
>
> Car is in very good shape with no obvious loose wires, grounds, etc.
>
> The dist. is effectively 2 black boxes, so I'm at a loss as to how to
> diagnose it.
>
> I can put in a 45D dist, new points, condenser and coil for less than
> $150, and put it back to 1972 spec, which is probably less than the
> time it will take to try and diagnose the other unit and at least at
> that point, I have a system that somebody of reasonable intelligence
> can sort out.
>
> If anybody has any experience with these things, your comments would
> be greatly appreciated.
>
>
>
>
>
> Jonas Payne
> PBR Consulting Services, LLC
> 702.882.6711
>
> ** triumphs at autox.team.net **
>
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