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Author Topic: Lucas MCR1 & MCR2  (Read 914 times)

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Online Owen

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Lucas MCR1 & MCR2
« on: February 18, 2016, 09:19:57 PM »
Just picked up a MCR1 for the 45C and thought I would post a few pics of the differences between that and the MCR2.

1945 C10 & C11
1953 C10
1953 C11 x 2
Still looking for an Original 350 side valve C12

Online Owen

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Re: Lucas MCR1 & MCR2
« Reply #1 on: February 18, 2016, 09:22:04 PM »
And the rear
1945 C10 & C11
1953 C10
1953 C11 x 2
Still looking for an Original 350 side valve C12

Online MilitaryRon

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Re: Lucas MCR1 & MCR2
« Reply #2 on: February 19, 2016, 05:32:27 AM »
Good find Owen. Now try and find a 'clamp on frame tube' version of the MCR1 :-\.

 I'm quite sure you can run the 45W dynamo with the post war MCR2 regulator. But I don't think it's safe to run the post war 60W dynamo with the MCR1.  Ron

Online Owen

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Re: Lucas MCR1 & MCR2
« Reply #3 on: February 19, 2016, 12:23:29 PM »
I will be gutting the MCR1 and hiding a modern reg unit inside as I have done with my other C's Although I will use the DVR2 unit over the V-reg2b.
1945 C10 & C11
1953 C10
1953 C11 x 2
Still looking for an Original 350 side valve C12

Online MilitaryRon

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Re: Lucas MCR1 & MCR2
« Reply #4 on: February 19, 2016, 05:17:40 PM »
Yes I've done that a few times. I prefer the Al Osborne units. http://aoservices.co.uk/

Ron

Online Tman

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Re: Lucas MCR1 & MCR2
« Reply #5 on: February 19, 2016, 09:26:06 PM »
Then you must be one of the few who do, Ron... ;)

Online MilitaryRon

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Re: Lucas MCR1 & MCR2
« Reply #6 on: February 19, 2016, 09:55:52 PM »
I can only speak as I find Tman. I've got four AO units fitted at the moment. My M20 has covered several thousand miles over quite a few years and my BSA/Indian special is a regular mount.

 I did have a major short on my special coming home from Popham which burnt out the ammeter, (as Owen will confirm as he was there). It was my fault as I hadn't insulated the wires properly on the AO unit that I'd installed inside the MCR1 box. Never the less, the AO unit survived and is still working well :)

Ron

Online Owen

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Re: Lucas MCR1 & MCR2
« Reply #7 on: February 19, 2016, 09:56:49 PM »
The debate on the AO reg2 with its inherent low battery voltage non charging issues are well known. I also run both my 53 c's with the AO unit and have had the issue of not changing with a low battery. On the 45 C I will be giving the DVR2 a go.
1945 C10 & C11
1953 C10
1953 C11 x 2
Still looking for an Original 350 side valve C12

Online MilitaryRon

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Re: Lucas MCR1 & MCR2
« Reply #8 on: February 20, 2016, 06:35:25 AM »
Good point Owen! I must admit I did get caught out on the special on a 30 mile ride home in the dark. The lights dropped the battery down and I lost charge and only just made it home with a spluttering bike. (the joys of coil ignition!) That's when I spent that £39 on LED bulbs, and I usually carry a spare Cyclon battery up my jumper!  Ron

Offline Dstep

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Re: Lucas MCR1 & MCR2
« Reply #9 on: February 20, 2016, 07:32:49 PM »
What is a "DVR2", please?
'52 BSA C11
'52 BSA C11
'50 BSA B34
'67 MGB Roadster
'00 Kawasaki W650

Online MilitaryRon

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Re: Lucas MCR1 & MCR2
« Reply #10 on: February 20, 2016, 08:54:24 PM »

Offline Dstep

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Re: Lucas MCR1 & MCR2
« Reply #11 on: February 21, 2016, 05:44:58 AM »
Thanks Ron, Looks quite nice. Do you guys routinely replace the mechanical regulators with these devices for better reliability or just if the old part gives up the ghost?

David
'52 BSA C11
'52 BSA C11
'50 BSA B34
'67 MGB Roadster
'00 Kawasaki W650

Online MilitaryRon

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Re: Lucas MCR1 & MCR2
« Reply #12 on: February 21, 2016, 06:00:12 AM »
I only replace them if the mechanical one isn't working. No point fixing something if it's working well. Also in my case it's not so important anyway, as most of my bikes have magneto's and therefore not reliant on a battery. Ron

Online timsdad

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Re: Lucas MCR1 & MCR2
« Reply #13 on: February 21, 2016, 09:25:57 AM »
I'm with Ron on this - I keep running the old Lucas stuff as long as it's still working. I've persevered with an AO regulator longer than I should have on my B31, because it has a magneto and could get me home in the dark, but finally bought an expensive Boyer one that is fine.

I also persevered with an AO one on my 1940 C, because it's almost frightened of the dark, but ran out of patience when the battery went flat after extensive town work and I had to be recovered home. This now has a DVR2 hidden inside its brass cover and is also fine.

Ray
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Online Owen

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Re: Lucas MCR1 & MCR2
« Reply #14 on: February 21, 2016, 09:47:46 AM »
This is a MCR2 I have converted to the AO type regulator on my 53 C's
1945 C10 & C11
1953 C10
1953 C11 x 2
Still looking for an Original 350 side valve C12