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I have this CAV unit ( shown mounted on the bulkhead) and am wondering if it is original and if not what is . Also is there an electronic conversion that fits inside if mine proves problematic? Please advise. Thanks, Barry
My 1935 build sheet quotes a Lucas RJF2 L17, unfortunately missing so I am still lookng for one! It was a combined cutout and fuse box I believe.
My works record card states the same Lucas unit. I do have a large Lucas fuse box on the other side of the bulkhead, not sure if it is original as well.
If you are looking for the correct Lucas unit I believe that Classic and Vintage Dynamos (“Jim”) may have one. I think that I saw the correct unit on his stall in the summer. Anyway it would be worth a call as he is helpful and knowledgeable. Phone in UK is 01623 747 666.
Hope this helps.Thanks for the tip . Mine is stated as an RG 7. At least that is what it appears to be on the record card. I can’t find a listing for that on the net.
Barry,
Might be worth checking to see if “RG 7” or similar appears on your CAV regulator. Not a typical Lucas designation, and it could be that Lagonda needed to find an alternative supplier, as Lucas had refused supply until outstanding invoices were settled. It looks period in your photo.
You could also search for any apparent date codes; larger Lucas items were always so stamped, but less obviously pre 1939. From around 1939, 639 or 6 39 would indicate June 1939. Pre 1939 you might find for example, 6 6 meaning June 1936. CAV I don’t know if dated; my V12 has a Bosch starter, but it carries no obvious date code.
If you find a date in the period just prior to your car’s build, that unit is likely to be original to your car.
Laurence
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