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Roaring starts about 5 minutes into driving - stops when i put on brakes?

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  • Other: Roaring starts about 5 minutes into driving - stops when i put on brakes?

    I've had all brakes, wheel bearings, rear axle, transmission, overdrive checked but can't locate the source of the roaring. The strange part is that the roaring stops when you put on the brakes. Checked to see if a shoe dragging but nothing shows up, it's got to be something like this I'm thinking. It's a 1951 Champion with hillholder, I've had brakes rebuilt but had another person check to see source of roaring and couldn't find any problems. It will do fine for first say 5 minutes then begins the roaring. Any ideas are appreciated as I just don't want to break whatever part. The person looking for the problem said the kingpins are very loose and that could be the source of the roaring, does that sound possible?
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  • #2
    Maybe you ran over a lion. They get ornery when you do that.

    Seriously, you are not giving us much to go on. At what speed does it start? In one gear, or in neutral, or in all gears? Front or rear of the car?
    Gord Richmond, within Weasel range of the Alberta Badlands

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    • #3
      It would be good to record it while you are driving and then post it in a video.

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      • #4
        Are you sure it's the kingpins that are loose? It sounds like it could be loose wheel bearings. If that is the case then the drums could be rubbing the backing plate, and application of the b rakes "centers" them and takes out the slack slightly.
        Bez Auto Alchemy
        573-318-8948
        http://bezautoalchemy.com


        "Don't believe every internet quote" Abe Lincoln

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        • #5
          To go along with what Bez said - It could be one or more worn out wheel bearings that are loaded differently with the brakes applied. It could also be bearings in the differential. Where is the noise coming from? What I think of as a "roar" is a bearing noise. I know that you said that you had all of these parts "checked". I do not see how king pins can roar (by themselves).
          Gary L.
          Wappinger, NY

          SDC member since 1968
          Studebaker enthusiast much longer

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          • #6
            I agree with others, sounds like a wheel bearing. Definitely not the kingpins or anything else contributing to a, "loose" front end. More info is needed.

            When it is roaring, if you steer to weave left and right, does that affect the roar?

            At what speeds? After braking, how long/far before the roar returns?

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            • #7
              You didnt mention the driveshaft carrier bearing, when they go dry they get rowdy/noisy. Cool Car! Luck Doofus

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              • #8
                Originally posted by doofus View Post
                You didnt mention the driveshaft carrier bearing, when they go dry they get rowdy/noisy. Cool Car! Luck Doofus
                I was about to say the same thing, another thing to check.
                The "U" joints and or Drive Shaft center bearing could warm up, get looser and begin "Roaring", when brakes are applied the Load is removed.
                If that were the case though, you should also hear it Stop on deceleration.
                Last edited by StudeRich; 12-14-2019, 12:54 PM.
                StudeRich
                Second Generation Stude Driver,
                Proud '54 Starliner Owner

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                • #9
                  Right-- carrier bearing is often neglected. It sounds like differential. Drain it pull the plate off, and inspect it for metal filings and wear pattern on the ring gear. check carrier and pinion bearings.

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