• Hi Guest!
    You can help ensure that British Car Forum (BCF) continues to provide a great place to engage in the British car hobby! If you find BCF a beneficial community, please consider supporting our efforts with a subscription.
    There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Subscribers don't see this gawd-aweful banner
Tips
Tips

Dynamo not charging [BT7] - replace brushes or buy new?

Share this page

Hi all
Collected refurbished 1955 C45 Dynamo to replace the original 1960 C45 which was exchanged. All buttoned up and 14.75v at the battery with the Ignition Light now extinguishing. Cannot recommend the Burghclere Starter and Alternator Center highly enough (Close to Reading in Berkshire, UK - https://www.burghfieldstarterandalternatorcentre.co.uk/).
Happy Xmas.
IMG_4899.jpg
IMG_4899.jpgIMG_4901.jpg


Phil
 
Good going Phil. Enjoy & Merry Christmas.
 
fishyboy said:
Hi Bob,
Ah I see what you mean. I had forgotten about the about the current needed to energize the dynamo so I can see how a fault control box could cause a problem. I'll do some more checks tomorrow. I have now found a shop nearby that rebuilds these C42 dynamo. I can take over both the control box and the dynamo and he will bench test both together, which might just be the best solution for me.

I'll double check the system voltage test at 1500rpm tomorrow. I did run at around 1500rpm and the ignition light didn't go out.
Thanks again.
Phil
Click to expand...
Did you try to “flash the field”?
 
Back
Top