Jump to content
Bullnose Forums

Alternator Upgrade Related Questions (was One-Wire Alternator Questions)


Recommended Posts

  • Replies 200
  • Created
  • Last Reply

Top Posters In This Topic

  • 1 month later...
We're still alive lol. Work has been crazy and I've been spending the spare time getting ready for a roadtrip in two weeks for the eclipse. Unfortunately, it looks like we won't be driving the truck. I'm still waiting on the shop to finish the transmission rebuild and some other minor stuff.
Link to comment
Share on other sites

My original plan was to get something around 160amp because that is what I have in my current tow vehicle (2015 Jeep Wrangler Willis). After some discussions on here and with my brother, I think 100amp will be more than sufficient for a while.

What did you finally decide to install, 100A?

Link to comment
Share on other sites

I think I have all of the wiring changes for a 3G sorted out and the choke situation is mostly sorted. My next issue is sourcing the actual alternator.

My original plan was to get something around 160amp because that is what I have in my current tow vehicle (2015 Jeep Wrangler Willis). After some discussions on here and with my brother, I think 100amp will be more than sufficient for a while.

I have been reading through the 3G documentation you all have worked on and I am trying to understand all of it. I need to sort out a pulley upgrade and physical alternator size. I do want to get a new alternator and would like it to be a decent one.

My 1G has a single v-belt pulley running off crank pulley. I would like to upgrade to a 2 belt pulley for future proofing. I'm not quite sure how to size or find the pulley. I'm also not 100% sure of what I would put the second belt on. The only thing available with my stock setup with be to add it with the A/C compressor. I also wouldn't mind having a second belt on it regardless of amperage.

My current 1G seems to have the 7" hole spacing. I can't take it off right now to verify that, but a quick measurement looked closer to 7" than 8.25". I am a little confused on this part in the 3G documentation. It says the different hole spacing were based around which type of belt configuration you have. It sounds like I may need the 8.25" but I'm not sure I have the room for that on my bracket. I'm looking at the current 1G, the belt, and the bracket and there is only about 1"-2" of additional space for tightening the belt on the bracket. Maybe that is enough or maybe I should go down to a smaller belt?

Oh and my truck has the combined smog/alternator setup only my smog pump is long gone. I do have the complete bracket though and the bolts.

As usual, I am seeking advise from the more experienced folks.

FWIW, a 1994/95 Taurus 3.8L has a 130 amp alternator that fits the trucks very nicely. It will have a serpentine pulley but a V-belt one will fit.

Link to comment
Share on other sites

FWIW, a 1994/95 Taurus 3.8L has a 130 amp alternator that fits the trucks very nicely. It will have a serpentine pulley but a V-belt one will fit.

The difference between that and a 92-3 3.8 V-6 is in the adjuster bolt.

One is threaded 8x1.25 and the other is unthreaded for a clamping bolt & nut....

This is why I say tap (OR Helicoil) the hole 3/8-16 and use your existing bolt that takes a 9/16 wrench.

You're under there trying to keep tension.

You don't have TWO hands to clamp a bolt & nut....

Link to comment
Share on other sites

FWIW, a 1994/95 Taurus 3.8L has a 130 amp alternator that fits the trucks very nicely. It will have a serpentine pulley but a V-belt one will fit.

Bill and Jim, I started a new thread about Big Brother’s 3G conversion.

FWIW, a 1994/95 Taurus 3.8L has a 130 amp alternator that fits the trucks very nicely. It will have a serpentine pulley but a V-belt one will fit.

Maybe you can develop this idea?

130A isn’t my goal, but who knows…

Since I do not want to highjack this thread, see you there!

Link to comment
Share on other sites

We're still alive lol. Work has been crazy and I've been spending the spare time getting ready for a roadtrip in two weeks for the eclipse. Unfortunately, it looks like we won't be driving the truck. I'm still waiting on the shop to finish the transmission rebuild and some other minor stuff.

Where along the track are you headed? 🌑

 

Link to comment
Share on other sites


×
×
  • Create New...