Lets talk loader grates
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Lets talk loader grates

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    Senior Member Dominator Scott's Avatar
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    Default Lets talk loader grates

    I am ijnstalling an SS loader grate on my Sanger and my question is this.

    Is it still necessary to install 5/16 bolts if the loader is through bolted?

    My Berkley 12JG pump has the 4 holes that go all the way through and threaded of course. My existing grate was secured with threaded bolts through the bottom and locked down with nuts and lock washer on the top side. Is drilling and installing 5/16 bolts still required?

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    Senior Member Boat 405's Avatar
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    Quote Originally Posted by Dominator Scott View Post
    I am ijnstalling an SS loader grate on my Sanger and my question is this.

    Is it still necessary to install 5/16 bolts if the loader is through bolted?

    My Berkley 12JG pump has the 4 holes that go all the way through and threaded of course. My existing grate was secured with threaded bolts through the bottom and locked down with nuts and lock washer on the top side. Is drilling and installing 5/16 bolts still required?
    Yes, do not drill out the holes, enlarge them to 5/16-18 threads. So that the bolts thread into the intake and then secure them with a washer, lock washer and then a nut.

    Or a washer and a locknut and don't forget the anti seize.
    Boat 405.

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    Senior Member lbhsbz's Avatar
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    Quote Originally Posted by Dominator Scott View Post
    I am ijnstalling an SS loader grate on my Sanger and my question is this.

    Is it still necessary to install 5/16 bolts if the loader is through bolted?

    My Berkley 12JG pump has the 4 holes that go all the way through and threaded of course. My existing grate was secured with threaded bolts through the bottom and locked down with nuts and lock washer on the top side. Is drilling and installing 5/16 bolts still required?
    I think the issue lies in the fact that if you have a blind hole that's already got 1/4" threads in it, you'd have a hell of a time drilling the rest of the way through with a 3/16" or whatever sized bit without garfing up the original threads. It's much easier to simply drill out the existing 1/4-20 threads as you are through-drilling the holes, then tap the entire hole for 5/16-18 threads.

    If you've got a 1/4-20 through bolted setup now, I would question the integrity of the original threads that you had to drill absolutely perfectly through before tapping the rest of them.

    Plus, 5/16-18 bolts are more beefier than 1/4-20 bolts. I use 1/4-20 bolts to hold on my licence plate.

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    Senior Member Dominator Scott's Avatar
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    Quote Originally Posted by widowmaker View Post
    Yes, do not drill out the holes, enlarge them to 5/16-18 threads. So that the bolts thread into the intake and then secure them with a washer, lock washer and then a nut.

    Or a washer and a locknut and don't forget the anti seize.

    That is exactly how my existing grate was secured. What is the purpose of going to 5/16-18 thread on the loader grate if my existing grate is secured like you mentioned in your post?

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    Senior Member Dominator Scott's Avatar
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    Quote Originally Posted by lbhsbz View Post
    I think the issue lies in the fact that if you have a blind hole that's already got 1/4" threads in it, you'd have a hell of a time drilling the rest of the way through with a 3/16" or whatever sized bit without garfing up the original threads. It's much easier to simply drill out the existing 1/4-20 threads as you are through-drilling the holes, then tap the entire hole for 5/16-18 threads.

    If you've got a 1/4-20 through bolted setup now, I would question the integrity of the original threads that you had to drill absolutely perfectly through before tapping the rest of them.

    Plus, 5/16-18 bolts are more beefier than 1/4-20 bolts. I use 1/4-20 bolts to hold on my licence plate.

    The 4 mounting holes already go all the way through and from the looks of it this was the way it came from Berkley considering there are 4 cylinder mounting pads casted right into the pump itself where the nuts and washers lock against. It certainly doesn't look like it was drilled after the fact.

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    Boat Nut sleekcrafter's Avatar
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    The larger bolts are for greater tensile strength, the bolts will tend to stretch when the boat are going upwards of 80 mph or so. When you find the bolts loose, it usually from stretching, then it's time for thru drilled, with no threads with stove bolt hardware.
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    I'm No Expert Shaun's Avatar
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    Go bigger, just think what would happen if that loader broke loose!

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    Senior Member jetboatperformance's Avatar
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    All our loaders go out with oversize Grade 8's and nylocks as well as instructions to install and trim , reuse of the 1/4 20 original bolts on anyones loader is a recipe for problems Don't risk it ! Tom

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    Senior Member Dominator Scott's Avatar
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    Now I understand and could see the point of the bigger bolts.

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    mo balls than $cents$ IMPATIENT 1's Avatar
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    i've had a loader come loose on me, before i knew better i bolted in a ss proloader from hi-tech into my 12je pumped taylor sj , used fresh bolts, and made it bout 1/2hr before notice'n my pump cavitating, pulled the boat up the ramp and my loader fell out from under the boat onto the ramp got lucky i didn't hurt myself or lost the loader, but it got back far nuff it destroyed the alum impellor lol could've beeeennnn realllll bad had it been a 12jg or something

    Dare to be different, if it turns out great you can claim you planned it that way.

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    Senior Member Dominator Scott's Avatar
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    Quote Originally Posted by IMPATIENT 1 View Post
    i've had a loader come loose on me, before i knew better i bolted in a ss proloader from hi-tech into my 12je pumped taylor sj , used fresh bolts, and made it bout 1/2hr before notice'n my pump cavitating, pulled the boat up the ramp and my loader fell out from under the boat onto the ramp got lucky i didn't hurt myself or lost the loader, but it got back far nuff it destroyed the alum impellor lol could've beeeennnn realllll bad had it been a 12jg or something

    Why would it of been different with a 12JG pump. I'm kinda new to this jet boat thing so I don't know the difference between the two.

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    Senior Member Dominator Scott's Avatar
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    Quote Originally Posted by jetboatperformance View Post
    All our loaders go out with oversize Grade 8's and nylocks as well as instructions to install and trim , reuse of the 1/4 20 original bolts on anyones loader is a recipe for problems Don't risk it ! Tom
    What exactly has to be trimmed on the loader grate and why does it need to be trimmed?

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    Je pumps are way different. The intake is built into the pump. Most other Berkeley pumps the intake or suction hosing is seperate. A SS grate is heavier than a stock grate, it needs the bigger bolts for support and safety.

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    mo balls than $cents$ IMPATIENT 1's Avatar
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    Quote Originally Posted by Dominator Scott View Post
    Why would it of been different with a 12JG pump. I'm kinda new to this jet boat thing so I don't know the difference between the two.
    the 12je pump is a insert type berk pump with a really small intake throat to the impellor, on a 12jg its alot bigger and roomier, would have given the loader a chance to jam against the pump shaft badlly or really get more into the impellor and maybe caused a lock up. now its a everytime out thing i check along with rideplate and steering hardware. rideplate comes loose at speed, you'll get wet quik, same thing can happen with a loose loader.

    Dare to be different, if it turns out great you can claim you planned it that way.

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