Fuel pump? Good enough to fill the bowls over time, but not to support
extended running.
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the primer red one with chrome wires
on 11/9/09 2:21 PM, Robert J. Guinness at guinness@stclegal.com wrote:
> As usual, I am mystified by my MGA. On a recent trip, it began to
> sputter and die. I could start it again, and go a short distance by
> pumping the gas pedal in unison with its dieing sputters. Now the car
> will only intermittently start. If I rev the engine and hold the gas
> pedal constant, the engine will run rough for a few seconds and then the
> revs will drop steadily until it dies.
>
> I changed the spark plugs which were black and went to a hotter plug
> (Autolite 63 gapped to .35). I re-timed the engine (twice). I had
> replaced the points,and rotor about a month ago. The car ran great when
> I installed the new points so I know I installed them correctly. The
> condenser is from last Spring. I had reported to the list recently that
> the cam block on the points on this car had worn in just a few months
> so that they hardly opened. Barney Gaylor suggested testing the coil to
> see if it was a ballister type, which it was not. I replaced the ground
> wire on the distributor about a year and a half ago and inspection
> shows it is in good condition.
>
> I had problems last year with a reconditioned head that the machine shop
> had failed to lap the bronze guides. The problem seemed to work itself out.
>
> I am getting gas. And my rudimentary spark plug tested from HF says the
> plugs are sparking. Compression shows all four cylinders within 5 lbs
> of each other (@125)
>
> This is a 1963 MGB 3-main engine with the original MGA carbs.
>
> For what its worth, the "rear seal" on the engine has began to leak
> about 4 months ago. I attributed this to a really nackered U-joint
> messing up drive shaft.
>
> How should I go about diagnosing and repairing this problem. Could it
> be the condenser? The camshaft? Valves? Bearings (rear seal leak)?
> Vengeful gods?
>
> Thank you.
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