80 442 full powertrain swap

[Kelvin's80442]

 

[olds307 and 403]

I find a lot of the one wire alternators need revved up to start charging. Basically the circuit is completed through the charge light in the dash on regular 3 wire setup, try that. I also used a 4 gauge looped battery cable from Canadian Tire from the battery to big red battery terminal on the alternator.

 

[Kelvin's80442]

I find a lot of the one wire alternators need revved up to start charging. Basically the circuit is completed through the charge light in the dash on regular 3 wire setup, try that. I also used a 4 gauge looped battery cable from Canadian Tire from the battery to big red battery terminal on the alternator.

Yep I have 4 gauge looped from alternator to battery. The old is SI altenator and the new one is CS

 

[Kelvin's80442]

I find a lot of the one wire alternators need revved up to start charging. Basically the circuit is completed through the charge light in the dash on regular 3 wire setup, try that. I also used a 4 gauge looped battery cable from Canadian Tire from the battery to big red battery terminal on the alternator.

So do I have to hook up the 2 wire again?

 

[olds307 and 403]

So do I have to hook up the 2 wire again?

It may not make any difference but it should also work as a regular alternator and hopefully charge better. Not a fan of the one wire alternators because of the rev it to charge design.

 

[DRIVEN]

I never found a problem jumping #2 to the charge post.

 

[Kelvin's80442]

It may not make any difference but it should also work as a regular alternator and hopefully charge better. Not a fan of the one wire alternators because of the rev it to charge design.

Well I ordered a pigtail that converts SI to CS alternator. Now with that, do I hook that back up to the starter or jump to the post on the alternator? Would that cause issues with the charging circuit both ways?

 

[Kelvin's80442]

Found a pigtail for a CS alternator. Was the one wire only so I added the second wire and jumped it to the battery post on the alternator. It's charging now but the guage says around 10 volts. I am hoping it's just the guage. Will pick up a tester and see. My oil pressure gauge doesn't work either. I have a new sending unit so that's not the issue.


Took her for a rip tonight on the highway, went for about 20 minutes. I am very impressed, hammer on her and the front end noses up. This is still the 273 gearing, I haven't put in the 8.5 342 posi. Will be interesting with the 342

 

[Kelvin's80442]

I am assuming the rear brake line in the GN rearend are the same as my olds

 

[64nailhead]

Correct, they interchange.

Was your assumption about the low voltage reading correct? Would it start after you got home.