MK2 Alternator Problem

Chat about your MKI or MKII Polo (86 and 86F)
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twoboys
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Posts: 1
Joined: Sat Feb 28, 2009 12:38 pm

MK2 Alternator Problem

Post by twoboys »

Hi guys and girls this is my first post on here so be gentle.

Right, OK, I own a 1984 Mk2 polo C with a 1.3 HK engine. The problem I have is that I need to fit it with a new alternator. The car is currently fitted with a BMW alternator (don't know why?) and the connections have been changed for that unit and don't match the fitment with the new 55amp one I ordered form the UK. I have provided photo links to the new unit but I have a number of questions that I would really love to be answered. Here's the pic links if there is a problem with your browser:

http://fapomatic.com/show.php?loc=0908&f=pict01.jpg
http://fapomatic.com/show.php?loc=0908&f=pict02.jpg
http://fapomatic.com/show.php?loc=0908&f=pict03.jpg
http://fapomatic.com/show.php?loc=0908&f=pict04.jpg
http://fapomatic.com/show.php?loc=0908&f=pict05.jpg

Questions I have are:

1> Is this even the correct alternator? (It's a 55 amp unit)
2> What cables fit to which connection? The BMW unit currently has two thick red leads and one thinner light coloured lead on an incompatible connection.
3> Is it better to source the proper connector and wiring and do a re-wiring job (ie back to origional) and if so, any ideas where I might be able to get the things I will need?
4> What is the black extra connection for on my new unit?

Only problem I really have is that I'm in Cyprus not the UK, so scrap yards are out. I can however order anything I need. I have peviously owned a few TR7's and older Fords so I'm not a total newbie but then again I'm no professional either LOL

Thanks in advance, I'm really pleased to be here!
pitman
Getting There!
Posts: 55
Joined: Fri Dec 23, 2005 4:12 am
Location: West Yorkshire, UK

Re: MK2 Alternator Problem

Post by pitman »

Hi,

welcome to this forum. Only, it seems to be quiet now since a few months.

Unfortunately, I cannot read your pictures because the company filter says "Acces denied. Adult content." :roll:

That happens sometimes even with work-related links. :lol:

I would need now to go for a computer normally reserved for visitors. There I can see even "adult content" .... :mrgreen: But I wouldn't know much to say to the wiring anyhow, so I leave this out.

I got on my 1984 MK2 1.05 GL Polo an alternator that is slightly wrong, too. It is an alternator for a VW Polo but the belt size is wrong. If you fit first the alternator and then the belt (that is what is the proper way) then I can only fit a belt that is slightly too long and it works but the belt doesn't have enough tension.
If I try to fit a belt with proper tension, then I have to fit the belt first and with 3 hands :mrgreen: I have then to fit the bolts for the alternator.

As far as I remember right there was a change with the alternators just in the middle of the year 1984, so I think you would need the engine number to properly order an alternator.

I am telling you this because I think it is not that easy to order or get the right one. Is it not possible to get the appropriate BMW alternator again?

I got wrong parts in my cars, too, apart from that Polo alternator. For example, our Citroen BX has a diesel filter from Ford. I guess it has been over a decade ago that a former neighbour who ran a Ford garage but drove a Citroen BX fitted this Ford filter because it didn't want to order the Citroen filter.
The downside is that I cannot prime this filter but I found a workaround, so I can live with this.
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