New Owner need help

Post by **ruislipboy** » Tue Oct 07, 2008 8:31 pm

Hi I am a new owner of an Morris minor two door and I am hoping to put an Alternator on it. What I want to know is do I have to keep the regulator box on the car or can I take it off. And if I can take it off which wires would go where. Sorry if this is a silly thing to ask.
Thanks for any help given

Post by **Dean** » Tue Oct 07, 2008 8:44 pm

Hi and welcome. Do you know if it is positive or negative earth? If it's still positive, I don't think an alternator will work.

Post by **Matt** » Tue Oct 07, 2008 8:53 pm

Yes you can take the junction box off. I can't remember which wires need to be connected together but if no one has given a definative answer I will post back in the morning.

Post by **wibble_puppy** » Tue Oct 07, 2008 9:43 pm

Hi ruislipboy and welcome to the forum!

You are certainly not the only one to think they are asking stupid questions, I make a firm habit of it, you will find all the help you need on here

I don't know the answer to your question (not such a stupid one, eh?

) but someone will be able to advise you, I'm sure.

Keep us posted

wibble xx

Post by **Judge** » Tue Oct 07, 2008 10:26 pm

See if this helps.

http://www.mmoc.org.uk/index.php?name=P ... tor#217002

Post by **alex_holden** » Tue Oct 07, 2008 11:41 pm

Dean wrote:Hi and welcome. Do you know if it is positive or negative earth? If it's still positive, I don't think an alternator will work.

It's very easy to change to negative earth at the same time as fitting the alternator though.

Post by **bigginger** » Tue Oct 07, 2008 11:57 pm

Which is fortunate, as you have to

Post by **bmcecosse** » Wed Oct 08, 2008 2:10 pm

Original 11AC alternators (with 4TR and 6RA units) could I believe be used +ve earth - hard to find now!
So yes - first step is to convert to -ve earth. Then find a suitable alternator - 16/17/18 ACR Lucas units are readily available very cheaply. You need to make/buy a bracket to supposrt the rear end - although some just use a very long bolt, this doesn't really keep the alternator in line with the drive belt well enough when the tension comes on. The regulator unit can be left in place - just disconnect the D and F wires. New heavy cable from the alternator large spade connector goes directly to the battery side of the starter solenoid. Small connector needs a wire taken to the ignition warning light in the speedo - the other side of which is on the ignition switch ON bus.