1988-91 Seville/Eldorado Fender Insulator
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Cadillac Seville / Cadillac Eldorado Forum Discussion, 1988-91 Seville/Eldorado Fender Insulator in Past Cadillac Vehicle Discussion; Folks, This diagram is from the 1991 Service Manual -- what I have in both fenders where "1" would go ...
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    EldoRedo's Avatar
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    1988-91 Seville/Eldorado Fender Insulator

    Folks,

    This diagram is from the 1991 Service Manual -- what I have in both fenders where "1" would go is a thick piece of jute-like material. Is that indeed what the "insulator" shown here is? Or is it a more substantial part (which I would be missing?) Asking because of the apparent box-like area half-way down "1".

    Thanks!
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    EldoRedo's Avatar
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    Re: 1988-91 Seville/Eldorado Fender Insulator

    Just to close this thread, it appears the "insulator" is indeed just a jute pad. Seems to me I could rig up something a little more solid and Dynamat it...

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    MoistCabbage's Avatar
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    If it's purpose was to insulate against sound, Dynamat isn't what you want to use.

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    Re: 1988-91 Seville/Eldorado Fender Insulator

    Well, I'm open to suggestions. I assume the purpose of the jute layer/pad was to reduce noise, but also it serves as the "barrier" to the inside of the front fender. The "problem" is that it does a poor job of sealing off that area. My initial thought was to fabricate a piece out of hard plastic (sort of stuff the front wheel well housings are made of), then seal it in with Dynamat (which would at least prevent any rattling) and would seemingly provide some noise abatement by virtue of sealing up that area. I may be able to incorporate the jute layer, as well. I'd need to remove the front wheel and wheel wheel housing to get to that area -- but I welcome any input.

    Thanks.

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    Dynamat stops panel resonance, it won't stop a poor fitting part from rattling. I would make a new barrier, make it fit as good as possible, and reuse the jute.

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    Re: 1988-91 Seville/Eldorado Fender Insulator

    Actually Dyanmat can walk and chew gum at the same time! It is designed to stop resonance, but it will also stop a poor-fitting part from rattling, as long as its sticky side is used to "immobilize" the part.

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    MoistCabbage's Avatar
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    Well yes, if you use it as "tape", but the cheapest/smallest package of Dynamat is the licence plate "kit", and it's ~$20. Extruded butyl sealant (or even duct tape is cheaper), and will have the same effect.

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