SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: 2savage4you on July 02, 2008, 04:53:52 PM

Title: BBC alternators.................................................................
Post by: 2savage4you on July 02, 2008, 04:53:52 PM
What should i look for in a alternator for my boat.... 1 wire, ohm or volts whatever it is..I wanna get one in the next couple of days so any help will be greeeeeeeaaaaaaaaaaaaatttttttttttttttt ;D

2sav
Title: Re: BBC alternators.................................................................
Post by: GT Jets on July 02, 2008, 05:04:48 PM
How many batteries and what type?

I used to run the single wire Delco Remy with the 85amp kit, but recently changed the self exited regulator out for a three wire, get a lot more control over the charge rate (have two small batteries and an isolator) it used to under/overcharge due to the output wire controls the charge rate, just works better.

But for ease of installation, one wires work great.

If this is a closed engine compartment, be sure to get it "marinized" by putting in the spark screens.

The main reason I like Delco's is I can get parts anywhere..... :D
Title: Re: BBC alternators.................................................................
Post by: 2savage4you on July 02, 2008, 05:06:28 PM
Open engine compartment and one battery ;)

Thanks...
2sav
Title: Re: BBC alternators.................................................................
Post by: GT Jets on July 02, 2008, 05:09:19 PM
Is she wired for a three wire or one? The ones work ok but in some cases the control sucks, especially with an isolator.

I also have a cool way to mount an alt on a BBC, if interested.
Title: Re: BBC alternators.................................................................
Post by: 2savage4you on July 02, 2008, 05:13:11 PM
Is she wired for a three wire or one? The ones work ok but in some cases the control sucks, especially with an isolator.

I also have a cool way to mount an alt on a BBC, if interested.

Yes im interested, no wiring done as of yet. Im just trying to get everything before i attempt it...... All the wires that were in the boat, I threw away Everything else is new the wires should be too ;D

2sav
Title: Re: BBC alternators.................................................................
Post by: GT Jets on July 02, 2008, 05:44:45 PM
Most of the BBC alternator mounts I have seen and even done suck...they just drill a 3/8" hole in the top of the motor  mount and run a Kragen special POS adjustment bracket.... that being said, the way I mounted mine was on the front of the engine there is one acc. hole in the head directly above one in the block, so I made two triangular pieces of aluminum (3/8" thick) and used rod couplings and threaded rod to bolt them to these holes and drilled a third hole to "sandwich" the alternator mount tube, then used a turnbuckle as the adjustment rod to the front motor mount bolt and to the 5/16" hole in the alternator. Trying to get a picture but I think I just "smoked" my camera (wont turn on).

I will get a picture tonight.

This keeps the alternator from shaking too and FRO O0

And makes adjusments a breeze
Title: Re: BBC alternators.................................................................
Post by: 2savage4you on July 02, 2008, 05:52:34 PM
Ok you have my attention.........


One more thing, don't smoke the camera...........smoke whats in the pipe  ;)

Jeeze , kids ;D

2sav
Title: Re: BBC alternators.................................................................
Post by: crewchief22 on July 02, 2008, 06:24:14 PM
And if you look at his picture he knows about smoking  ;D





>:D
Title: Re: BBC alternators.................................................................
Post by: speedymopars on July 03, 2008, 04:32:13 AM
Here is my gm 1 wire.

The turnbuckle makes it really easy to get the proper belt tension.
Title: Re: BBC alternators.................................................................
Post by: TJS Nordic on July 03, 2008, 04:50:32 AM
Here is mine. I used a 15.00 I think Dana marine mount and the alternator also attached to the 4 point mounting plate. I use a one wire chrome summit alternator. I think 85 amps. No problems so far. I know some of you have rail mount kits so your results may vary.

T.J.

(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fwww.tjsperformance.com%2Fimages%2Fnordic63.jpg&hash=cd6c6b3bf8d7d16a40177e19e2d7f5a9e0cce4b3)
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