Lemans 1000 not advancing

[lazlokovacs]

Lemans 1000,

distributor not advancing timing by any more than around 6 degrees, checked by strobe.

(I'm certain it was advancing a few weeks ago, but I have since been in the distributor trying to remedy points arcing and a weak spark, which have been solved...)

next steps?

thanks, as ever

[acogoff]

    Are your springs so weak that you are setting a false static timing that is at a point only degrees from the stop. Grabbing ahold of the breaker cam and twisting it should give you an idea of what is happening.

[guzzisteve]

Did you loosen the screw on top of the shaft & add a drop of oil?

[lazlokovacs]

I replaced the springs about 3 years ago, I would've thought they'd still be good...

[twhitaker]

Did you loosen the screw on top of the shaft & add a drop of oil?

The springs overcome the friction to return the advance weights to their 'retarded' position. The oil is the miracle worker that sees to it that it happens.

[Dick]

(I'm certain it was advancing a few weeks ago, but I have since been in the distributor trying to remedy points arcing and a weak spark, which have been solved...)

Can you share what your fix was with the weak spark. It could be helpful for someone down the road.
Thanks

[Two Checks]

If the advance weights are binding due to dirt or rust this will happen.

[Tobit]

When oiling the advance weight pivot, it only takes a drop or two.  Too much and the oil can fling out and foul the points.  BTDT.

Might want to use a timing wheel on the front of the crank to determine what range of advance you're getting. 

Tobit