1978 Mgb Distributor

[stevedal]

Does anyone know how to find out what part(s) of a distributor have gone bad? We tried a different distributor and that was the problem. The rotor was spinning out of control. I would rather not have to buy a whole new distributor if only a small part of the one I have has gone.

[Flash75]

Do you mean the rotor and the points cam are spinning or is it just the rotor spinning. If only the rotor you can replace it. There a tab inside the rotor that should engage a slot in the top of the distributor cam. If the cam is spinning you will need to buy a distributor unless you know how to disassemble, inspect and repair a distributor. If you need parts other than points, rotor and cap you may not be able to find what you need. I assume you have a Haynes MGB manual or some other repair manual if you need to disassemble the distributor. Let us know exactly what is spinning and perhaps we can help you.

Clifton

[stevedal]

Originally Posted by stevedal

Does anyone know how to find out what part(s) of a distributor have gone bad? We tried a different distributor and that was the problem. The rotor was spinning out of control. I would rather not have to buy a whole new distributor if only a small part of the one I have has gone.

Thank you for your response. The shaft is wiggly inside the housing so I assume I need to replace the distributor. The numbers on the side of the housing are as follows: 41813A 45DM 518 LUCAS

[Flash75]

It sounds like it may be best to replace it.

Clifton

[stevedal]

Originally Posted by stevedal

Thank you for your response. The shaft is wiggly inside the housing so I assume I need to replace the distributor. The numbers on the side of the housing are as follows: 41813A 45DM 518 LUCAS

Thanks again for the response. Any idea where I can get one? The new ones seem to be alot of money. Should I just shop junkyards?

[CraigFL]

I hear that a lot of people have bought replacements from places like Auto Zone and Advance Auto Parts for under $70.00