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rcf925

Alternator, Regulator ?

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On my 68 I have an external regulator, I'm upgrading alternator to 45 amp TII Alternator set-up so it has internal regulator. Can I just unplug and remove external regulator?

 

 

voltage regulator.jpg

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6 minutes ago, 2002iii said:

Unplug it and sell that magic box on ebay to offset the cost of the new alternator.

 

After this build is complete I got a lot of ebay stuff

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I converted my 71 but left the regulator on it, just unplugged (I like that purty yella tape).   

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Once you remove the original voltage regulator, do you need to alter or add to the  wiring of the new internally regulated alternator?

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(edited)

Uh, pretty sure you need switched 12V going into the alternator somewhere, on 320 alternator conversions one wire from the voltage regulator has to connect to the D+ terminal. They need current to make current. 

Unless we are talking generators?

 

Edited by tech71

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(edited)
11 minutes ago, tech71 said:

Uh, pretty sure you need switched 12V going into the alternator somewhere, on 320 alternator conversions one wire from the voltage regulator has to connect to the D+ terminal. They need current to make current.

 

 

There is the 3 prong plug to back of alternator and hot red wire goes to B+, and a ground to block.   I think thats all I would need

Edited by rcf925

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Confused now,  The 3 prong plug is from the voltage regulator.   To my knowledge Internally regulated alternators only have 2 wires, B+( battery) and D+ (12v in) Normally you have to connect 1 wire from the regulator to the D+ on the alternator. 

 

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15 hours ago, tech71 said:

Confused now,  The 3 prong plug is from the voltage regulator.   To my knowledge Internally regulated alternators only have 2 wires, B+( battery) and D+ (12v in) Normally you have to connect 1 wire from the regulator to the D+ on the alternator. 

 

 

Ah, Yes I see 3 prong goes to external regulator so I think I got it now, But why is there still a three prong plug on the new alternator if it has internal regulator? Can I just cut 2 wires from the 3 prong plug and leave the blue one on and just plug it back in with the blue going to D+

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55 minutes ago, rcf925 said:

Can I just cut 2 wires from the 3 prong plug and leave the blue one on and just plug it back in with the blue going to D+

If the shoe fits, wear it.

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8 hours ago, rcf925 said:

 

Ah, Yes I see 3 prong goes to external regulator so I think I got it now, But why is there still a three prong plug on the new alternator if it has internal regulator? Can I just cut 2 wires from the 3 prong plug and leave the blue one on and just plug it back in with the blue going to D+

 

Picture would be good. The tii alternator was externally regulated. Why do you think it is internal?

 

If it has the same 3 pin plug on the alternator it is likely to be external. The pin s are typically marked with their function on the case. If so, does this match the marking on the old alternator? I doubt that Bosch would use the same plug but in a different configuration across different alternators. 

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(edited)
3 hours ago, Simeon said:

 

Picture would be good. The tii alternator was externally regulated. Why do you think it is internal?

 

If it has the same 3 pin plug on the alternator it is likely to be external. The pin s are typically marked with their function on the case. If so, does this match the marking on the old alternator? I doubt that Bosch would use the same plug but in a different configuration across different alternators. 

 

I don't have new alternator yet, I bought on Ebay, Here's a pic, It says on ebay for Tii but I think they just mean it will fit Tii also, I bought cause it's a 45 amp. Would this alternator be regulated internal or external?

 

 

Alternator.jpg

Edited by rcf925

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And a Tii alternator requires a Tii mounting bracket as it’s mounting point is significantly larger than a non Tii one.

it might be better to go for a non Tii alternator of similar or greater output.

Also Simeon is correct the Tii alternator is externally regulated.

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One other thing, make sure the external regulator is compatible with the alternator or you will boil your battery.... ask me how I know!

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