Intake grate question
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Intake grate question

  1. #1
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    Default Intake grate question

    I've been wondering..Is it neccessary for the rear of the intake loader grate to rest upon the surface of the intake at the back? Or is it OK to have the rear suspended with only the four mount bolts securing the grate. thanks

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    Senior Member GT Jets's Avatar
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    Quote Originally Posted by zombie View Post
    I've been wondering..Is it neccessary for the rear of the intake loader grate to rest upon the surface of the intake at the back? Or is it OK to have the rear suspended with only the four mount bolts securing the grate. thanks
    I would not feel comfortable with just the mount pad holding the grate in place unless the bolts were enormous.

    There is a huge amount of strain on those grates. Why does it not touch the intake at the rear? Something is not right....

    GT (Not Gary Taylor )
    GT


    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

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    Senior Member jetboatperformance's Avatar
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    Zombie pics might help , some there were some variations in some of the stock rock grates respective to the rear , my loaders for example are designed to "rest" in the shoe casting area Tom

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    To race your berkeley jet boat in NJBA, you must have grade 8 bolts with locknuts. So I drill and tap the threads to 5/15th and put locknuts on them. Never had a problem. Pat

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    Thanks for the input. I was test fitting an extra blocker grate and noticed no contact in the back by about 3/16" or so. I can weld it up and then grind it to touch. With the four 5/16" grade 8 bolts I thought maybe it was not necessary to touch.

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    Senior Member DuaneHTP's Avatar
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    At high speeds, those loaders can vibirate quite a bit if they are not secure at the back. I've even seen boats gain MPH from bolting them down back there. I would not be comfortable with a loose loader rear end on a very fast boat.

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    Senior Member Brendellajet's Avatar
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    Duane if they just touch is that okay or do you recommend bolting through the intake? Boat is a 21 footer in the high 80's if it matters.
    "He is a lover, not a fighter. But he's also a fighter, so dont get any ideas."

  10. #8
    Screamin SeaMonkees Schi-502's Avatar
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    Watch that drill depth!!!

    I vented my oil pan when I drilled and tapped. Ouch!
    Loose, the Dogs of War!

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    Senior Member Fonz69's Avatar
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    Quote Originally Posted by Schi-502 View Post
    Watch that drill depth!!!

    I vented my oil pan when I drilled and tapped. Ouch!

    At least the tapp went in easy huh

    That would ruin my day to say the least

  12. #10
    Screamin SeaMonkees Schi-502's Avatar
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    It did. The last to be drilled. On my back in AB gravel, arms tired. Just wanted to be done. WTF, where's this oil coming from? AAHHH Schizat!

    I'll remember it well.
    Loose, the Dogs of War!

  13. #11
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    Quote Originally Posted by GT Jets View Post
    I would not feel comfortable with just the mount pad holding the grate in place unless the bolts were enormous.

    There is a huge amount of strain on those grates. Why does it not touch the intake at the rear? Something is not right....

    GT (Not Gary Taylor )
    My white lightning top loaders don't touch the housing on the back side but they do have a fifth mounting point drilled on the rear brace so you can bolt up the back side with a washer thick shim if you are running high speeds. You need to drill and tap the intake. jim

  14. #12
    Driver 78CoLeBBF's Avatar
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    are yours the cast aluminum loaders
    Its a FORD thing chevy's arent quick enough to understand

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    JRPM/e-PerformanceMarine Squirtin Thunder's Avatar
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    Quote Originally Posted by 78CoLeBBF View Post
    are yours the cast aluminum loaders
    http://www.performancejet.com/whitelighteningNEW.htm
    Jim & Amanda Rich
    CJ 72 & 53c

    JR Performance Motorsports

  16. #14
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    Thanks Thunder.... Jim

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