5 replies to this topic

[dotmatrix]

my 998 metro is burning up points in about 2000miles with this setup, but why?

 

it has the following setup lucas 45d, new condenser, new points adjusted to about 0.015", several different 1.5ohm coils both new and used, ballasted ignition when running, full voltage when cranking (as a normal metro with pre-engaged starter), measures 11 dc volt with engine running, tried a new wire with a new ballast resistor, good cables and plugs. 

 

so why is it burning up new points so quickly? they are bubbling up in the center? what am I missing?

 

I have now changed to the cheap minispares electronic dizzy but I would still like to know whats wrong with it.

Edited by dotmatrix, 28 January 2025 - 09:34 PM.

[Ethel]

That's what the condenser is intended to eliminate. Though it could also be the ballast or ignition coil don't have enough resistance.

 

It should really be a type 59 dizzy, That's much the same as a 45, but has "wiper points" with  the white plastic fork that goes round a pin on the baseplate. That moves where the contacts come together with the intention of stopping them eroding constantly in the same place & ending up like yours.

[68+86auto]

Which side of the points is the bump?
 

Can you post a picture of the points surface?
 

Which brand of points and condenser are you using?

 

 

 

Check the dwell instead of the points gap. Get the condenser tested.

Edited by 68+86auto, 29 January 2025 - 01:51 AM.

[Abbot]

Which side of the points is the bump?
 

Can you post a picture of the points surface?
 

Which brand of points and condenser are you using?

 

 

 

Check the dwell instead of the points gap. Get the condenser tested.

Sorry to be a bit dim.  I am familiar with setting the timing and the points gap.

How do you set the Dwell angle

[sonscar]

Use your gunsons meter,it will have a dwell range.It measures the angle the points are open(or closed?).adjusting the gap alters dwell.kind of averages any wear.Steve..

[Ethel]

Dwell is the time the coil spends energising (points closed), expressed in degrees of rotation. It's a more direct, accurate, way of setting the ignition up than the points gap. To increase it you'd reduce the points gap.