Lagondaforum

Subject: Starter motor brush holder

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Anybody who has battled with very brittle mazak brush holders on V12 engines might like this steel copy we cut from a steel billet. Not cheap but pretty!

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Subject: Re: Starter motor brush holder

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Nice job...only the V12 starter doesn't have a mazak brush holder. Just checked my spare, & as I thought, Herr Bosch wouldn't stoop so low as to use mazak in his machine. Now, if we're talking Mr Berkshire, now he made a fine mess of the wiper motors with this cr*p metal.
So, next question...what starter motor do you have fitted? The correct original is a Bosch axial starter. Incidentally the brush holder is made up of laminated steel rivetted together.
Laurence

Subject: Re: Starter motor brush holder

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Starter motor numbers from case BJG12/12 RS19 R Bosch A-G might be 6 . Looks like a Bosch motor to me

Subject: Re: Starter motor brush holder

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Hi,
Yes, certainly Bosch. Both my starters are BJH 18/12 RS42, which I understand is the factory equipment. My notes state that the "18" can be another number.
I'd say that yours could be the nearest viable replacement supplied by Bosch once stock ran out...but then I thought mazak fatigue was a pre-war thing. Intriguing. Obviously the important issue is that it starts your engine. Mine simply states "BOSCH" with their symbol; "R Bosch A-G" would indicate a different period of manufacture
I've found Bosch very helpful, although I gather they threw all remaining spares for these starters in the 1970s. They did email me detailed exploded diagrams and parts lists...if you like I can email copies on to you, pm me your email address if so.
A thought...Bosch could probably tell you what the original vehicle/s were fitting your starter...in which case it's just possible the relevant owners club could supply, or know sources of, spares should you need other parts. I'd certainly like to know where to get brushes from for mine!
Laurence

Subject: Re: Starter motor brush holder

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Thank you for that , I would certainly appreciate any info you have, my E mail is petemick@fastmail.fm
Whilst surfing last night I found a BJG12/12 RS19 for sale in France. I await a reply.