SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: crazyjim on May 16, 2016, 09:37:51 AM
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So I'm at the last stages of stabbing the motor in for the last time and realized my "solution" for my alternator mount isn't going to work. :banghead:
I bought a high mount alternator mount from billet specialties but it's for a short water pump pulley, meaning the alternator sits too far back and hit's my risers. All the long water pump mounts look like they mount off the front of the water pump, which obviously won't work as I've got AN lines going directly into those ports. So what are you guys doing for mounts with a rail kit? The only real solution I can think of is to mount the alternator with a small spacer to the rail kit itself, and try to find a turnbuckle or something similar to adjust it? I've got one of Lightning's bare bones rail kits. Thanks for the help ahead of time.
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi251.photobucket.com%2Falbums%2Fgg319%2Fdigitalc0nvict%2FSpectra18%2FIMG_20160507_122047_zpsrxhocras.jpg&hash=cb1dd2f38120af5573f8d0736deeb19305527c1e)
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Had to go to the archives for this one but there are several good pics on page 2 that might help you out.
http://www.socaljetboats.com/engine-mechanical-electrical/alternator-mounting/msg34474/#msg34474 (http://www.socaljetboats.com/engine-mechanical-electrical/alternator-mounting/msg34474/#msg34474)
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mines mounted on the passenger side rail facing backwards. With a turnbuckle i sourced from mcmastercarr... ill try to see if i have any pictures
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ive improved it a little bit since this picture, but it gives you the idea
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fimg.photobucket.com%2Falbums%2Fv643%2Fsteves86ta%2FMobile%2520Uploads%2F20151123_211848_zpsbxvmzoam.jpg&hash=f11b93b4df7f9bdd37e79ef4f6cd4767e6ea49ce) (http://smg.photobucket.com/user/steves86ta/media/Mobile%20Uploads/20151123_211848_zpsbxvmzoam.jpg.html)
i used this rod
http://www.mcmaster.com/#8419k63/=12fsa73 (http://www.mcmaster.com/#8419k63/=12fsa73)
and these rod ends
http://www.mcmaster.com/#rod-ends/=12fsaov (http://www.mcmaster.com/#rod-ends/=12fsaov)
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Had to go to the archives for this one but there are several good pics on page 2 that might help you out.
http://www.socaljetboats.com/engine-mechanical-electrical/alternator-mounting/msg34474/#msg34474 (http://www.socaljetboats.com/engine-mechanical-electrical/alternator-mounting/msg34474/#msg34474)
I'd like to think that'd work, I'm assuming you just bolted the buttom mount through the motor plate? I was just outside peeking around at it and it looks like I won't have any adjustment whatsoever because of the damn risers, big blocky fuckers.
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ive improved it a little bit since this picture, but it gives you the idea
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fimg.photobucket.com%2Falbums%2Fv643%2Fsteves86ta%2FMobile%2520Uploads%2F20151123_211848_zpsbxvmzoam.jpg&hash=f11b93b4df7f9bdd37e79ef4f6cd4767e6ea49ce) (http://smg.photobucket.com/user/steves86ta/media/Mobile%20Uploads/20151123_211848_zpsbxvmzoam.jpg.html)
i used this rod
http://www.mcmaster.com/#8419k63/=12fsa73 (http://www.mcmaster.com/#8419k63/=12fsa73)
and these rod ends
http://www.mcmaster.com/#rod-ends/=12fsaov (http://www.mcmaster.com/#rod-ends/=12fsaov)
This is kind of what I was thinking of doing. Did you just use L-brackets for the bottom mount on the rail? Also, how well does that turnbuckle work to tension the belt with that big of a spacer on it? That was the issue I saw myself running into with that.
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How far off is the misalignment andnd in which direction? Most likely you can resolve this with a spacer behind your existing bracket.
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Make up some bushings/spacers and run it through the motor plate. I have an outboard style alternator but you get the idea.
Mines apart right now and this is loosely fitted. (Don't flame me for the dirt/grime lol)
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This is kind of what I was thinking of doing. Did you just use L-brackets for the bottom mount on the rail? Also, how well does that turnbuckle work to tension the belt with that big of a spacer on it? That was the issue I saw myself running into with that.
Since this picture was taken, i have made a new spacer that is much more solid. It works great now.
I used some pieces of left over angle aluminum from my rail kit. It worked good for me.
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Check out CVF Racing, they have
head mount, short and long water
pump versions. High Tech Performance makes one as well but I'm not sure if they make one for a long pump.
Sent from my iPhone using SoCalJetBoats mobile app
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how does that ls run on the water?
Sent from my iPhone using SoCal Jet Boats
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how does that ls run on the water?
Sent from my iPhone using SoCal Jet Boats
I like it. It's not bad at all for a stock bottom end 5.3. (325ci)
Runs mid 70s on motor and high 80s low 90s on bottle (150 shot) depending on water conditions
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I use a turn buckle for a v-drive cav plate.
[attachimg=1]
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I no longer have this boat but I found a cheapo alternator bracket made out of alum. I had to machine up a spacer to bring it out more cause of my crank trigger and such. I tigged the spacer onto that bracket (where the adjustment is) and then made a tab to mount it right off if the stringer. Looked factory when I was done.
T.J.
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fwww.tjsperformance.com%2Fimages%2Fblown_nordic10.JPG&hash=1486c8adbb54dca7c7663ff8a76f3efcb8f0b07f)