Classic cars forum & vehicle restoration.
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ukdave2002
Joined: 23 Nov 2007 Posts: 4105 Location: South Cheshire
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Posted: Fri Mar 29, 2013 7:34 pm Post subject: Alternators that look like Dynamo's |
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Dynalite alternators have been around for a while, but are pretty pricey, circa £350 just spotted these Stealth,alternators... they are only £99 has anyone any expirience of them?
They have a similar output (45A) to the Dynalite ,double the Lucas C40 dynamo, and charge at lower revs than a dynamo.
Cheers
Dave |
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Bitumen Boy
Joined: 26 Jan 2012 Posts: 1735 Location: Above the snow line in old Monmouthshire
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Posted: Fri Mar 29, 2013 11:50 pm Post subject: |
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I wonder if you can get the parts and overhaul them yourself? I did the C40 off the Herald last year - bearings were knackered - and it was quite an enjoyable little job for a change |
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ukdave2002
Joined: 23 Nov 2007 Posts: 4105 Location: South Cheshire
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Posted: Sat Mar 30, 2013 10:47 am Post subject: |
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Bitumen Boy wrote: | I wonder if you can get the parts and overhaul them yourself? I did the C40 off the Herald last year - bearings were knackered - and it was quite an enjoyable little job for a change |
That's where I started, thinking I would get a C40 rebuild kit off ebay, that included, bearings , bush and brushes etc, found the kits at around £15, then spotted that a new C40 dynamo could be purchased for £45 (attractive as the field winding insulation in mine looks a tad tired) then spotted these C40 style alternator
I have ordered one, will report back on what its like !
Dave |
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47Jag
Joined: 26 Jun 2008 Posts: 1480 Location: Bothwell, Scotland
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Posted: Sat Mar 30, 2013 11:19 am Post subject: |
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Dave,
Are they negative earth only or is it just a case of connecting the appropriate terminal to earth. I notice that there are two large spade terminals so the casing would have to be neutral/insulated??
Art |
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ukdave2002
Joined: 23 Nov 2007 Posts: 4105 Location: South Cheshire
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Posted: Sat Mar 30, 2013 11:42 am Post subject: |
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47Jag wrote: | Dave,
Are they negative earth only or is it just a case of connecting the appropriate terminal to earth. I notice that there are two large spade terminals so the casing would have to be neutral/insulated??
Art |
Art
they are negative earth, I'd already made the decision to make the MGA negative earth, I'm presuming the terminals are insulated from the case.
Dave |
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Bitumen Boy
Joined: 26 Jan 2012 Posts: 1735 Location: Above the snow line in old Monmouthshire
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Posted: Sat Mar 30, 2013 11:47 pm Post subject: |
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The large and small terminals on these dynamos are insulated from the casing and are both the same polarity (at least for the purposes of this discussion) - positive on a negative earth car or negative on a positive earth car. The earth return is via the engine and dynamo casing. To change from positive to negative earth with a dynamo you don't chance the connections to the dynamo at all, just repolarise it. |
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