3 g Alternator mounting

R

rwood126

Member

Feb 20, 2009

161

3

16

mCdONOUGH, GA.

Nov 14, 2010

#1

• Nov 14, 2010

• #1

I bought a 89 vert. 2 years ago...and the 3G conversion had already been done. I just had to replace the alternator and noticed the top bolt was not mounted to the tensioner bracket. I put the new alternator in and there is no way I can get the top bolt to mount. It is off by 1/2 inch. Do I need to buy a new model tensioner to mount the alternator the right way?

 

jrichker

StangNet's favorite TOOL

In Remembrance. Thank you for your contributions

Mar 10, 2000

27,512

2,813

234

Dublin GA

Nov 14, 2010

#2

• Nov 14, 2010

• #2

The mounting for a 94-95 3G is a direct fit: you only have to use a longer bolt and a nut to make it work.

Edit: Mustang5L5 is right, you will need to grind or cut a small amount of metal off the stock mount to get enough clearance to make it fit correctly.

See http://www.mustangcentral.net/tech/alternator.html for the pictures on how much and where you have to trim the stock bracket to get it to fit correctly.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,216

17,899

224

Massachusetts

Nov 14, 2010

#3

• Nov 14, 2010

• #3

You might have to modify the alternator bracket slightly by removing some material where the casing contacts until the bolt hole lines up.

Or you can get a 6g alt which has a smaller case

 

Stever89

5 Year Member

Dec 14, 2009

536

9

39

Biloxi, MS

Nov 15, 2010

#4

• Nov 15, 2010

• #4

Who ever did the conversion didn't finish the job. I suppose he figured the belt tension would keep it place which it does, but I'd go ahead and grind away that area on the bracket and put the bolt through. I actually took the whole bracket off, took it in my shop and put a bench grinder on the area that needs to be ground off. Took about 5 minutes.

Be advised, moving the alt in a little will change your belt's tension. Hopefully it won't mean getting a smaller belt.

 

R

rwood126

Member

Feb 20, 2009

161

3

16

mCdONOUGH, GA.

Nov 15, 2010

#5

• Nov 15, 2010

• #5

Yeah ..the case is hitting the bracket. I guess I'll have to break out the drimel. What is the 6G Alternator from?

Thanks...

 

T

time only

New Member

Nov 15, 2002

461

0

0

Miami,FL

Nov 15, 2010

#6

• Nov 15, 2010

• #6

I just used different hand files,easier for me to control,plus it is very soft Alum anyway.

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

33

129

Nov 15, 2010

#7

• Nov 15, 2010

• #7

Yeah, a dull butter-knife can slice through that bracket.

6G's came on later mod motor vehicles.

 

Vinnietbird

Member

Jun 2, 2005

584

3

19

Nov 15, 2010

#8

• Nov 15, 2010

• #8

rwood126 said:

Yeah ..the case is hitting the bracket. I guess I'll have to break out the drimel. What is the 6G Alternator from?

Thanks...

Click to expand...

That's how I did it,the Dremmel made short work of it.