Alternator drive [Archive]

mptheriot

10-25-2004, 01:18 PM

Are there any direct drive couplings for alternators ? Do most alternators spin by belt? I designed a direct coupling that works but I'm experiencing some problems, looking for suggestions.

spectras only

10-26-2004, 10:00 AM

Call Mike at rexmarine , they have it and he's helpful with info.

GofastRacer

10-26-2004, 12:14 PM

Here it is!.. :cool:
Rex! (http://www.rexmar.com/page305.html)

sdpm

10-26-2004, 02:51 PM

I have a used one from Rex pt # 457478 anodized red. It is like brand new. $ 140.00. Neil

FOURQ

10-26-2004, 05:47 PM

I have a used one from Rex pt # 457478 anodized red. It is like brand new. $ 140.00. Neil
check your pm's
4Q

Unchained

10-27-2004, 03:44 AM

I've been running a direct drive alternator for a couple seasons.
The coupling is just an off the shelf lovejoy coupling.
I had to do some machining to get the depth right.
It took me a while to figure out that the powder coated mounting bracket was preventing the alternator case from getting a ground and so it wasn't charging.
I ran a seperate ground wire from the case to the block and it's been working fine.
It turns 1/2 normal speed so has to get up to about 3000 rpm to start charging.
http://www.***boat.com/image_center/data/500/220june404-med.jpg

LUVNLIFE

10-27-2004, 08:31 AM

I run the kit from Rex Marine as does Jet Driver. Neither of us have any probs and they work great. :rollside:

Rexone

10-27-2004, 09:10 AM

It took me a while to figure out that the powder coated mounting bracket was preventing the alternator case from getting a ground and so it wasn't charging.
I ran a seperate ground wire from the case to the block and it's been working fine.
Good point. Anodize is also an insulator as well as paint on the block surface so a separate ground wire is always a good idea from the case.

rrrr

10-27-2004, 02:06 PM

Hey, where's the FE model? No can find in the catalog. :jawdrop: :D

Cs19

10-31-2004, 09:00 PM

I am sold on the cog belt drive.
http://www.jonesracingproducts.com/images/kits/multi-view/full/2065_bbc_drvr.jpg
the pic is only an example, they all sorts of differnt set ups, or you can get custom and just use the drive.
Jones racing products

Thunderbutt

11-03-2004, 02:55 PM

If you have a v-drive. Because I drive my tach off the balancer, I had a pully made that wrapes around the drive line, and mounted the alt. on the stringer. But it is in a cruiser and the floor board covers it up