SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: ka0tyk on June 21, 2012, 06:00:34 PM

Title: where/how to put the alternator?
Post by: ka0tyk on June 21, 2012, 06:00:34 PM
pressed for space and how to get the alternator to align up properly... any suggestions?  switched to plate mounts and low mount where it was before is out of the question.  cant go too far forward ill hit my seats... cant mount it on the passenger side the manifold is in the way...

previously had it mounted low with this:

http://www.cpperformance.com/p-13713-bbc-powder-coated-steel-lower-port-side-alternator-mounting-bracket-kit.aspx (http://www.cpperformance.com/p-13713-bbc-powder-coated-steel-lower-port-side-alternator-mounting-bracket-kit.aspx)

(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fsphotos.xx.fbcdn.net%2Fhphotos-ash4%2F403427_10150926775464833_350269321_n.jpg&hash=0eca5058edca0a024a0c9909182653df1ed7bd30)
Title: Re: where/how to put the alternator?
Post by: Ralph Brunt on June 21, 2012, 06:04:27 PM
change one thing and you will have to change five others, lol

put it in the boat then fab from there so you dont have to fock up the interior
Title: Re: where/how to put the alternator?
Post by: eliminatethis on June 22, 2012, 12:36:24 PM
mount it off the back. put a pully at the drive yoke  and mount her to a bracket off the bell housing.
Title: Re: where/how to put the alternator?
Post by: ka0tyk on June 22, 2012, 01:32:57 PM
mount it off the back. put a pully at the drive yoke  and mount her to a bracket off the bell housing.

not a bad idea... i wonder how much work it would be to somehow integrate my existing pulley onto the PTO and weld em together... hmm.  it would be nice to have one less thing spinning around next to people...
Title: Re: where/how to put the alternator?
Post by: IRRebel on June 22, 2012, 02:55:00 PM
Proppy did it with his old Eliminator.......digging the pic up.......

(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi673.photobucket.com%2Falbums%2Fvv95%2FIrrebel%2FProppyAlternator.jpg&hash=cd30ce49a0cc88acfcb45545b6b17831dc2b4925)

Ray
Title: Re: where/how to put the alternator?
Post by: Squirrel Master on June 22, 2012, 03:04:56 PM
hats off fn smart :thumbup:
Title: Re: where/how to put the alternator?
Post by: mash on it on June 24, 2012, 01:40:44 PM
Use an Optima marine battery, and float test the alternator. Mine has run for 2 days, and 50+ gallons of fuel WITHOUT an alt. HEI works till ~9 volts, ask me how I know ;D

Daniel
Title: where/how to put the alternator?
Post by: lbhsbz on June 24, 2012, 04:09:20 PM
Use an Optima marine battery


For what, an anchor?  Optima batteries are  junk.
Title: Re: where/how to put the alternator?
Post by: ka0tyk on June 24, 2012, 04:20:19 PM

For what, an anchor?  Optima batteries are  junk.

I have a marine deep cycle for a radio then I'm going to use a small odyssey batter for starting. I don't want 2 heavy batteries though.
Title: Re: where/how to put the alternator?
Post by: MPKardell on June 24, 2012, 07:10:12 PM
I high-mounted mine with some home-brew brackets that I saw-cut from aluminum plate and aluminum bar stock.  I don't like electrical stuff down in the bilge if I can help it.

If you want pics, let me know and I'll post some in a week or so when I get back in town at my home computer.

Matt
Title: Re: where/how to put the alternator?
Post by: N2GLOCK on June 26, 2012, 04:51:50 PM
Just outta curiosity...why is the engine out of you boat? Did you do a rebuild on it?
Title: Re: where/how to put the alternator?
Post by: ka0tyk on June 26, 2012, 09:55:38 PM
Just outta curiosity...why is the engine out of you boat? Did you do a rebuild on it?

when i bought the boat it came with a longblock.  i had no clue of the condition of it.  so i tore into it, everything checked out fine, new gaskets, new timing cover, stripped and painted the block since it had some rough spots, converting to a 4 point mount, etc...

oh and i tossed some full length douglas fir stringers just for shits and giggles since i took a fatty for a ride and they broke the seat bases i had fiberglassed to the bottom.
Title: Re: where/how to put the alternator?
Post by: IRRebel on June 27, 2012, 01:06:19 AM
I high-mounted mine with some home-brew brackets that I saw-cut from aluminum plate and aluminum bar stock.  I don't like electrical stuff down in the bilge if I can help it.

If you want pics, let me know and I'll post some in a week or so when I get back in town at my home computer.

Matt

Had this conversation before! Might have been what made Proppy do his the way he did, really. Anyway, MANY cars, I still have one here ('92 Olds Cutlass Supreme International, now RJ's car) with a transverse mounted V6 in it where the alternator is completely under the car on the very bottom, in the back, between the firewall, the exhaust manifold, the steering rack and the engine. It is a GM car made in the 100,000's (same as the Lumina Z-34, and the Pontiac Grand Prix GTP with the 3.4 DOHC engine). IF that thing can sustain the rain, road dirt, snow, sleet, freezing rain, etc.........and it has..........what's the problem with a little water? I'm sure there are countless other cars with the same setup.

Ray
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