Hi Guys: I am confused about what the original part numbers should be for the Lucas 6RA relays on the "M" series Dino should be. What follows is the sources I have and their part numbers for the relays: 1) Official Ferrari maintenance and repair instructions, English translation by Angelo Wallace: -charging circuit relay: Lucas 33231 -headlights relay: Lucas 33213 -radiator cooling fans relay: Lucas 33213 2) Dino Compendium by Matthias Bartz -charging circuit relay: Lucas 33213 -headlights relay: Lucas 33231 -radiator cooling fans relay: Lucas 33213 3) Official Operating, Maintenance, and Service Handbook for car #01118 and on (the glovebox book) -charging circuit relay: Lucas 33252 -headlights relay: Lucas 33231 -radiator cooling fans relay: no part number listed You see there are discrepancies between these three sources and I am not sure why. It could be typographical mistakes by authors or part number supersession mistakes or something else. Has anyone noticed and researched this? I am trying to get my "M" car put back together and want to get it correct. The relays I have on my terminal board from when I disassembled my car are as follows: -charging circuit relay: Lucas 33293 -headlights relay: Lucas 33231 -radiator cooling fans relay: Lucas 33293 Does anyone have the definitive part numbers and supersessions of part numbers for these 3 relays?
I have 33293, 33231, 33232 on my M (1712), but can't vouch for whether or not they're original to the car which I acquired in 2010.
I remember when researching this that just about every M Series I looked at had different LUCAS part numbers on the relays and that in the end I assumed that any 6RA Lucas relay that did the job was fine. Here are the relays I have on M series 01464 Image Unavailable, Please Login
@Nuvolari believe it or not, they are different. The different variants are single contact vs dual contact, normally open vs normally closed vs changeover, coil resistance, etc. unfortunately I can’t find my Lucas catalog or I’d be able to tell you which one to use. I recall there are various sites for British cars that have more detail on the different models. One thing - you can disassemble and clean these relays so no need to trash them if they aren’t working.
https://www.lucasautomotive.com/globalassets/english/media-uploads-2020-02-21/lucas-relay-wallchart-en.pdf this may help, one thing i have learned about relays, they may look the same but there are very subtle differences as Mark rightly identifies. Tony
I get that they are all different but my experience shows no one sub-number to be correct. What of course does matter is the number of wires and the job that the particular relay does. My experience is that there are various relays that will fit the bill not that 'any' 6AL relay will do.
Hi Guys: Thanks for all your responses and comments. Jeez, I am doing yet another deep dive into a Dino mystery...I am looking for some old Lucas documentation that has the specs and schematics for all these old 6RA relays and have so far sent an e-mail to Lucas (in the UK) and e-mail to Rhode Island Wiring for a start. If you guys have any other ideas of where to look for this documentation let me know. I have also just bought the bodyparts book (big ouch) for the "M" car and when I get it hopefully this Scaglietti book will have some documentation on the relays. I have seen there is some discussion about these old 6RA relays on Jaguar and Rolls-Royce forums so I may see about posting if these guys are knowledgeable about the specs/schematics. Yes, it is entirely possible that more than one part number 6RA relay was/is acceptable for each of the 3 Dino circuits in question...but if this is the case, I still want to know exactly what the specs of the relay is that I am going to use (voltage, current capacity, continuous vs intermittent, normally open vs normally closed, single vs double contacts, etc) especially since I am probably going to have to use what I have or scrounge on the net since these relays are not readily available for sale. One other thing, from my notes before I disassembled my wiring is that the charging circuit relay is on the left, lights circuit relay in middle, and cooling fan relay is on the right...all as viewed facing terminal board...are your car's relays in the same order (I know it may not be important but I just want to get an idea if the factory had some consistency)?
For what it’s worth I have an E, not an M, but it’s a Euro with fan, horn, and light relays only. The relays are original to the car. The fan is a 6RA 33213 and the lights are 33231.