Alternator bracket help!
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Alternator bracket help!

  1. #1
    Member 78Rogersrunner's Avatar
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    Default Alternator bracket help!

    So I'm running an chevy 350 with a front motor plate no motor mount. Short water pump. I'm looking for an alternator bracket. I can't run a low mount because doesn't line up with the plate there and the plate is in the way of adjusting it. Only ones I find mount to water pump and I don't have one or there $80+ and I don't wanna spend that. That's where it was but is destroying belts and isn't turning good cause can't get enough adjustment Any help??


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  3. #2
    Member 78Rogersrunner's Avatar
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    Are you not able to adjust the alt and the belt is too lose? Or is it an alignment problem? I can't tell from looking at the pictures. I just noticed on mine that the motor keeps popping the alt belt. When I first got it I noticed the belt was flipped and the teeth were facing outward. The top bolt on the alt was stripped and you couldn't tighten the belt. I fixed that bolt and corrected the belt. But today while running it the belt popped off. I have to look at mine in the morning. I'm thinking alignment. I'm wondering if you have a similar problem.

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  6. #4
    Member 78Rogersrunner's Avatar
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    I don't have much adjustment at all. Someone custom made my motor plate and already had the grind it to fit and yeah my belt had flipped sideways


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    Member 78Rogersrunner's Avatar
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    Anyone?


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  8. #6
    Senior Member Rivieraracing's Avatar
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    Are you running a big alternator? I had a problem like you are having when I had a high output alternator on one of my trucks, no matter how tight I could get the belt as soon as the alternator would wanna charge hard it would chew up the belt almost instantly! After a few new belts bit the dust fairly quickly, it was recommended that I try a Gates belt and I haven't had a problem since! 5+ years on that belt so far!

    Try getting a better more close up pic of the setup you are currently running so we can get an idea on what you have and if it can be modified!

  9. #7
    Senior Member 74Bonneville's Avatar
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    You're going to have to customize this yourself. I've had alt's that had very little adjustment which requires a perfect size belt to roll on the pulleys. Yes the key is to get the alignment right. I used a straight edge (Steel ruler) to get the pulleys lined up. Washers or spacers due the trick. My current Rogers I cut by own bracket out of a thick piece of aluminum and hand filed to fit. Lowes is your friend for inexpensive parts.

    Be creative


  10. #8
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    Quote Originally Posted by Rivieraracing View Post
    Are you running a big alternator? I had a problem like you are having when I had a high output alternator on one of my trucks, no matter how tight I could get the belt as soon as the alternator would wanna charge hard it would chew up the belt almost instantly! After a few new belts bit the dust fairly quickly, it was recommended that I try a Gates belt and I haven't had a problem since! 5+ years on that belt so far!

    Try getting a better more close up pic of the setup you are currently running so we can get an idea on what you have and if it can be modified!
    This is what I was thinking. Im going to throw a straight edge on mine tonight. The previous owner said the belt always flipped over so he just left it like that. I fixed it so It had good tension. The it just threw the belt completely. Im going to get a straight edge on there today. I think the OP needs to do the same thing.

  11. #9
    Senior Member jetboatperformance's Avatar
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    As you likley have discovered nearly everything beyond the basic jet and engine on these projects may require some "engineering", Low alternator mounting can be difficult when mounting in close quarters is desired , I'm doing something similar on my tunnel hull and will take a couple pics to day to try to help Tom

  12. #10
    Member 78Rogersrunner's Avatar
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    Thanks guy. This is my first jet boat so ive been learning it all. I'll try go get better picks in a few


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    Member 78Rogersrunner's Avatar
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    Where you able to get any pictures?


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