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  #11  
Old 12-03-2014, 10:22 PM
Joe Johnston Joe Johnston is offline
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I wouldn't do it. (drill the block)

Last edited by Joe Johnston : 12-04-2014 at 09:17 AM.
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  #12  
Old 12-04-2014, 07:54 AM
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Dan.loeb, I merged both your alternator threads because they pertain to the same thing.

Alternator mounting amounts to a 'tripod', with two brackets normally holding one end of the alt and the third one is your adjustment.

Sling the alt on the bottom, in place of your generator. That's where I put mine, and I used the same holes that the gen used. For the top adjustment, I used the water pump bolt. Yes, it is very long. So? It's a 5/16" which is plenty large enough to 'steady' the new alternator and tension the belt.

On another application (power steering pump), I made a 'C' bracket that encircled the pump. I bolted the mounting holes to my 'C' then I conveniently drilled holes in my bracket to more easily align with block holes. You can do the same with your alt.

Fabrication only takes a small bit of foresight, a tape measure, and basic steel. My hat goes off to Howard Prout. He fabricated a great firewall bracket for a Squarebird power brake vacuum booster. Once he got the design correct, he made two, had them both chrome plated and is using one. Ray Clark is using the other on his '59 SB. They have been in service for a few years, now.

We would all love to "buy one off the shelf" with the confidence that 'it' will fit. But our cars are fifty yrs-old and few are left. Demand is so low parts are hard to find or they were never made. That's why I bite the bullet and make my own.

My 6G is mounted on my Y-block. It is a three-wire alt and at idle, it puts out enough to run an electric fan in an all day parade as it also keeps my battery up. <--This is the real reason why you need such a huge alt. The supply must always exceed the demand.
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  #13  
Old 12-04-2014, 05:58 PM
Dan.loeb Dan.loeb is offline
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Simply, d you have any pics of your bracket you made?
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  #14  
Old 12-04-2014, 07:47 PM
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Quote:
Originally Posted by simplyconnected View Post
...My 6G is mounted on my Y-block...
Quote:
Originally Posted by Dan.loeb View Post
Simply, d you have any pics of your bracket you made?
I don't, but Charles does. Look at the simple but very effective brackets he made. First of all, he also has a Y-block. These are older engines that had less options than the FEs.

Check out the Sanden A/C compressor he mounted:

If you follow his V-belt, it goes straight down to (you guessed it) an alternator.

The top front bracket is a simple 'tab' of steel mounted to the water pump. The top rear bracket is simply twisted with two holes, mounted on the timing cover. Can you buy them? I don't know why you'd want to. He used existing holes to his advantage and aligned them beautifully. - Dave
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  #15  
Old 12-08-2014, 09:03 PM
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Ok guys I finally got my 1996 thunderbird alternator 3 wire and have a question regarding the pulley.

The alternator currently has a serpentine pulley and I need to install a v belt pulley. I took the pulley off of the original genenerator but the pulley has an external fan on it. Do I need to purchase a new pulley or modify the stock one? If I need a new one where do I find one online.
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  #16  
Old 12-09-2014, 12:20 PM
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You don't need the fan on your new alternator. You DO need a small spacer that keeps your generator pulley away from the alt housing (or it will rub). Alternators have internal fans. - Dave
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  #17  
Old 12-15-2014, 10:21 PM
Dan.loeb Dan.loeb is offline
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I went a head and ordered a dual pulley off of summit racing and it fit perfectly.

Here's my next question. I am almost finished with the wiring of the new alternator, but according to the wiring diagram on the trl is says I need to wire the thick yellow wire coming from the starter relay to the yellow wire coming off of the horn relay. It was originally connected to the voltage regulator I removed. It seems that my horn relay had two yellow wires coming off of the voltage regulator. Do I connect both yellow wires from the horn relay to the thick yellow wire from the starter relay
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  #18  
Old 12-15-2014, 11:26 PM
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I'm not sure where you are seeing two yellow wires. You should have the thick yellow wire on the voltage regulator that goes to the starter solenoid connected to a thinner yellow wire going to the horn relay. The other two wires on the relay are blue-yellow to the horn button and black to the horns. When I went to an alternator I left the voltage regulator in place just for looks and gutted the inside. I left the wires connected the way they were on the voltage regulator.

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  #19  
Old 12-15-2014, 11:42 PM
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Default alternator model type

The same thing was done on my '59 when I converted to an alternator. The VR was left in place and just the wiring to the Gen light was used. Nothing else in the VR had to be used. I see that he removed his VR from the car.
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  #20  
Old 12-16-2014, 12:14 AM
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The voltage regulator does nothing after you mount a self-regulating alternator, so you are certainly at liberty to remove it.

If you do, the Horn Relay needs power. You have two choices:
You can also remove the short yellow wire that formerly went to the regulator, then connect the #10 yellow wire that was on the regulator, and simply swing it over to the LH terminal of your horn relay OR,
You can remove the large (#10) yellow wire and simply run your own smaller (#14 or 16) wire from the Horn Relay's LH terminal to the Starter Solenoid, to pick up +12v.

That leaves only one wire remaining, a small GEN light wire (Yellow-Black). At this point it does nothing but it could be your new alternator's 'sense' wire, to tell the alternator that your Key Switch is turned on.

If you have a one-wire alternator, you're done. It cannot use the GEN wire so you might as well tape it off. Ray has a one-wire and he claims his GEN light works. If it is connected to the yellow +12 wire, that would make it NOT work because then the light would be connected at both ends to +12.

So, in a nutshell... remove the Voltage Regulator, remove both yellow wires, run a new wire from the Horn Relay's LH terminal to the Batt + (Starter Solenoid) and finally, use the small Gen (Yellow-Black) wire for your 'sense' on a 3-wire alt. - Dave
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