electrical and ignition Alternators And Brackets

[kenped86]

Can anybody help me zero in on where the disconnect is between my alternator and bracket? It obviously does not fit and it missing some hardware. looking at some other pics on this site it appears that the upper mounting points on mine are much further apart. I have a 1973 tii and not sure if I should be sourcing a new alternator or new bracket.

 

This is my setup

 

This is from another post on this forum

[eurotrash]

You have a Tii, but the ill-fitting alternator is NOT a Tii piece.  Looks like someone shimmed a normal 2002 alt to hang there.   

 

The width of the mount that fits between he ears down there is the give-away.  You either need a Tii alt, or just the front half swapped onto the one you have.  Maybe someone has a defunct alt that they can sell you to have rebuilt.

Edited January 19, 2014 by eurotrash

[jgerock]

Your top picture shows a standard 2002 (non-tii) alternator installed in a tii. The nuts are being used as spacers. It appears there aren't enough or they are too small to fit.

 

Here is the proper wide casting tii alternator.

 

 

[kenped86]

Thanks guys for the quick resolution. Next stop... parts wanted (anyone with a tii alternator?)

 

Ken

[Hans]

One learns something new every day. I'm still looking at the pictures muttering WTF?

[FB73tii]

There was another thread on this recently. I don't know if it is "common" but several people (including myself) run normal 2002 alternators with the tii bracket using a proper spacer. My '73tii came that way when I bought it in 1983--the spacer appeared to be made just for that purpose, a solid metal cylinder the correct length for interference fit and bored for the bolt.

 

Ah, here it is:

Anyone have a picture of a tii alternator/mounting assembly?
http://www.bmw2002faq.com/topic/98315-anyone-have-a-picture-of-a-tii-alternatormounting-assembly/

And a related post:

alternator mounting bolt broken.... again
http://www.bmw2002faq.com/topic/130152-alternator-mounting-bolt-broken-again/

Edited January 20, 2014 by FB73tii

[Lengrep]

Ben at 2002ad said that Bosch fits standard alternators with a bushing for tii when they supply an overhauled alternator for tii's...

[OriginalOwner]

FB73 found the threads + pics I was thinking of.

 

In the two pics which kenped posted, I have the upper alternator bracket with spacer installed, with a Bosch AL40X alternator.  All this was the original configuration on my '74tii  Here's a pic:  

 

 

Cheers,

 

Carl

[BLUNT]

Ben at 2002ad said that Bosch fits standard alternators with a bushing for tii when they supply an overhauled alternator for tii's...

This is true  i sell lots of them like this

[TobyB]

But if you go get an alt from a Subaru Justy, it bolts right up to the tii bracket, and is a ton smaller.  And more durable.

Not really a power upgrade, but they are a lot more sexy.  And you can ditch the external regulator...

 

t

 

well, duh- because racecar!

[FB73tii]

Great tip! Anything similar that fits a standard 2002 bracket (or 318 bracket, which is about 1/4" wider than the 2002 bracket)? I've been thinking about getting a mini-Denso one-wire, but have not gotten around to it. Depending on the type and source they are also not cheap! --Fred

[ArdenK]

I used spacers when I replaced a tii alternator, works great.

[allbim]

Great tip! Anything similar that fits a standard 2002 bracket (or 318 bracket, which is about 1/4" wider than the 2002 bracket)? I've been thinking about getting a mini-Denso one-wire, but have not gotten around to it. Depending on the type and source they are also not cheap! --Fred

When you install a one-wire alternator, wire it so that it is disconnected from the battery when the engine is turned off. 

The voltage regulator in the alternator draws about .2 amps and it is always connected to that "one wire", which in a week or 2 will discharge your battery.

[kenped86]

The spacer did the trick. A quick trip to mcmaster-carr (picked that site up off this board a few days ago) for 15 oz of aluminum and 30 seconds of fine tuning on the belt grinder did the trick.