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E34 (1989 - 1995)

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  #1  
Old 02-27-2011, 04:18 PM
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Monsignor Monsignor is offline
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Mein Auto: M50 Big Body
740i starter on M50

would a 740 starter fit on my M50. no need to explain details, just wondering if this would work...

525 starter: PN 12411740379 1,4 KW



740 starter: PN 12411736921 1,7 KW

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1995 525iA 250k mi
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  #2  
Old 02-27-2011, 04:47 PM
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BMR_LVR BMR_LVR is offline
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Location: Asheboro, NC
 
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Mein Auto: 1992 525i
Unfortunately, no.

Here's how I found out. Go to realoem.com to the "select your model" page:

http://realoem.com/bmw/select.do

Put the part number in the section in red titled PART "NR APPLICATION SEARCH", hit enter and it will tell you which cars that part will fit in, as this shows for the 740 starter:

http://realoem.com/bmw/partxref.do?part=12411736921

Hope this helps. I learned about the parts applicability function and it was like gold.

Steve
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It's Deja Poo - as in, I've heard this **** before.
Steve

Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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  #3  
Old 02-27-2011, 06:05 PM
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Monsignor Monsignor is offline
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I know they're different part numbers, as posted in OP, but if it were to be mounted, would it drain the battery? fry anything? i dont really know how a starter works. I understand bare fundamentals though
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1995 525iA 250k mi
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  #4  
Old 02-27-2011, 07:27 PM
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BMR_LVR BMR_LVR is offline
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Oh, okay. Sorry, but I don't know the answer to your question. I wish I understood electrical stuff more. I would be surprised if it would mate up to the bell housing.

Steve
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Most problems are usually something simple !

Quote:
Originally Posted by noego View Post
It's Deja Poo - as in, I've heard this **** before.
Steve

Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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  #5  
Old 02-27-2011, 07:59 PM
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luckydog luckydog is offline
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I think its doubtful that the V8 starter would work on your 525i. I would think the v8 model starter would be bigger,and require larger fuse.

Last edited by luckydog; 02-28-2011 at 12:39 AM.
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  #6  
Old 02-27-2011, 08:11 PM
robertobaggio20 robertobaggio20 is offline
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Well it should not cause any harm, as a bigger car's starter should work fine for a smaller car as it has a smaller crankshaft to rotate, which should be easier.

It may require a higher current draw though, which means, as LD suggests, that you'll have to use a larger fuse.

The fuse for the started may not be found in the fuse bank for the e34. It may be elsewhere on the car....perhaps some fusible links here and there, or maybe some resistors - etc. Not sure. You can go ahead and try it, but if a fuse blows somewhere, it may be a pia to try to fix that.
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  #7  
Old 10-08-2012, 03:10 AM
Peter's 525I Peter's 525I is offline
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Mein Auto: 95 e34 525i
no it will not work
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  #8  
Old 10-08-2012, 05:39 AM
robertobaggio20 robertobaggio20 is offline
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Whoa talk about a blast from the past ! lol

Padre, what happened ? Did the 750's starter work ? Did you try it at all ?

I looked at the advice I gave you. Its not accurate, especially considering that I had a no-start issue due to my starter since that time. So let me revise my conclusions.

A starter spins the flywheel and not the crankshaft. Secondly, the current draw issue can be easily tested by hooking it up to the battery directly to see if it functions normally. There should be no problems with fuses because any fuse for the starter (if its fused at all) would be well in excess of what is required, as electrical current only runs through the starter for like 2 seconds, usually too little time to do much damage even at high current for such a robust motor. Thirdly, it will work if the starter will make contact with the flywheel properly in its affixed position (so a starter that is of a greater girth might pose some problems, and it would be easier to adapt a smaller starter to a bigger car rather than the other way around). And virtually any starter can be fixed onto the side of the M50 engine if you're prepared to construct an appropriate metal bracket if required, and that construction is a simple matter even for someone who knows how to work with pieces of metal only on an amateur basis.
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  #9  
Old 10-08-2012, 08:41 AM
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supertech777 supertech777 is offline
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Mein Auto: 1995 525i
Quote:
Originally Posted by robertobaggio20 View Post
Whoa talk about a blast from the past ! lol

Padre, what happened ? Did the 750's starter work ? Did you try it at all ?

I looked at the advice I gave you. Its not accurate, especially considering that I had a no-start issue due to my starter since that time. So let me revise my conclusions.

A starter spins the flywheel and not the crankshaft. Secondly, the current draw issue can be easily tested by hooking it up to the battery directly to see if it functions normally. There should be no problems with fuses because any fuse for the starter (if its fused at all) would be well in excess of what is required, as electrical current only runs through the starter for like 2 seconds, usually too little time to do much damage even at high current for such a robust motor. Thirdly, it will work if the starter will make contact with the flywheel properly in its affixed position (so a starter that is of a greater girth might pose some problems, and it would be easier to adapt a smaller starter to a bigger car rather than the other way around). And virtually any starter can be fixed onto the side of the M50 engine if you're prepared to construct an appropriate metal bracket if required, and that construction is a simple matter even for someone who knows how to work with pieces of metal only on an amateur basis.
The bendix gear on the starter will not match with your flywheel ..

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