Loader Question
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Loader Question

  1. #1
    Senior Member BAHNER79AUSTRALIA's Avatar
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    Default Loader Question

    Was wondering if any of you fellas would be kind enough to tell me what loader i have here.... Apologies in advance, i know this question gets asked frequently.





    If its too loud.... Your too old....
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    Retired Air Force Master Sergeant's Avatar
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    B1 Racing cs19's Avatar
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    Lee, mock it up and see where the loader aims, high center or low?

    Very outdated design and its mig welded and mild steel. If the uprights are less than 3/16" thick don't even consider running that.
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  6. #4
    Senior Member sandeggo's Avatar
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    Quote Originally Posted by cs19 View Post
    its mig welded and mild steel.
    Do you feel there is a problem with loaders being mig welded?

    Looking for your honest opinion not starting shit.
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  7. #5
    B1 Racing cs19's Avatar
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    Quote Originally Posted by sandeggo View Post
    Do you feel there is a problem with loaders being mig welded?

    Looking for your honest opinion not starting shit.
    No, I guess it could be done but for a racing part? No. I feel it should be of the highest quality. Like aerospace/racing quality parts. Quality materials, quality machine work, fixtured and tig welded. I see no reason to mig it over tig. I really cant get past the size of the welds with the migged parts.

    IMO, there is alot of very low quality loaders out there that find there way into fast boats and thats a huge problem. We lost alot of boats a few years ago in one season, all from loader failures. Had a friend wreck a tunnel boat right in front of me who was lucky to get out of that crash alive. Not an area to cut corners. I do think there is a market for a loader for a 60 mph boat thats migged and mild steel but when it ends up in a fast boat we have a problem and thats impossible to control. Then look at the price tag on that part, hard to justify. Thats a $150 part at best IMO.

    I gotta hand it to the racers this year, I had a handful of guys that caught cracked or broken mild steel loaders this season, had 2 situations where the bolts failed also. Bolts need to be changed more frequently.

    SanDeggo, Ill supply you with lazer jet parts to build a loader your way if you want and we can run stress tests on it in your lab. Ive read your posts on welding in the past. If so, PM me an address.
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  8. #6
    Senior Member sandeggo's Avatar
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    I'll come by the shop sometime, I'll be needing your services this winter.
    For what it's worth I completely agree with what you wrote. I've seen bad tig welds on loaders. In that case I'd rather it be migged. People want that spread out dime look on their welds... That just creates stress risers.
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    Senior Member desrtrat256's Avatar
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    Chris, Are your loaders all chromoly? 4130 or something different? Ive alot of guys with do a mix between chomoly and DOM. Whats your thoughts on material?
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  10. #8
    B1 Racing cs19's Avatar
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    Quote Originally Posted by sandeggo View Post
    I'll come by the shop sometime, I'll be needing your services this winter.
    For what it's worth I completely agree with what you wrote. I've seen bad tig welds on loaders. In that case I'd rather it be migged. People want that spread out dime look on their welds... That just creates stress risers.
    Id really like to get together. Many of the failures this year (all mild steel parts) are at the edges of the welds and the mounting pad cant stay flat, it warps and wants to break. Keep in mind these parts had way too many laps on them and should have been replaced years before they did. Crazy amount of load on these things.

    Question for you...Youd rather mig weld chromoly or cold roll? Cold roll is flat out not cutting it in racing or fast lake use and the stainless is too prone to warping.

    Alot of the sanctioning bodies including NHRA will not allow a mig welded chromoly cage or other parts on their race tracks.
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    Senior Member sandeggo's Avatar
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    Oh and for anyone wanting to test their loaders on the cheap.
    Go to your local welding supply and get liquid penetrant. It's 3 spray cans, about 20 bucks.
    Cleaner
    Penetrant
    Developer.
    The part will be white and any cracks or defects will be red. It's cheap insurance.
    Demo for my students letting the developer dwell.
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    Senior Member lupo1904's Avatar
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    I have that same loader in my GW and it was mig welded and definetly looks like a newbie welded it. Im no weld pro but i do have a few certs for the squirt gun. Would you be able to pm me prices and pics of what loader works best in a 450lb GW?
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  13. #11
    B1 Racing cs19's Avatar
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    Quote Originally Posted by desrtrat256 View Post
    Chris, Are your loaders all chromoly? 4130 or something different? Ive alot of guys with do a mix between chomoly and DOM. Whats your thoughts on material?
    Hi Desertrat.

    Yes we run a mixture of materials...The parts that are not under any load are cold roll the rest is the good stuff and are lazer jet from plate, deburred to eliminate stress risers, etc. Doing everything we can do.

    For racing...We leave them raw, no paint. We pull them out and clean them up each race for inspection. Crack checking will be happening at the races next season much like what you see the prop guys do between rounds. As the parts get more cycles on them they need to be watched even closer, just the way it is.
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  14. #12
    B1 Racing cs19's Avatar
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    Sandeggos pic is exactly what I was referring to for crack checking at the track.
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  15. #13
    Senior Member desrtrat256's Avatar
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    That seems to make perfect sense. Do you use the laser of water jet for any specific reason or its just whats available locally?

    Kyle
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  16. #14
    B1 Racing cs19's Avatar
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    Lazer is much cheaper. Problem with lazer is it leaves one helluva skin on the part where the lazer runs, even a carbide endmill cant handle it. Must grind the skin then machine. Id rather go waterjet, costs go way up though and there isnt much room for that. With all the deburring we do the skin comes off where it needs it and its all good. Things are working well up until this point.

    The fixture is a 1.250 thick piece of blanchard ground steel, its serious. LOL.
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