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Thread: Front mount question

  1. #1
    Super Moderator Turbo Mopar Staff 135sohc's Avatar
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    Front mount question

    I have both your solid bobble strut and the front mount. I have used all possible combinations of stock and your mounts to get rid of the engine bucking and at the same time not have an annoying vibration at 55mph. The only solution that really works so far is having a mopar performance Neon stiffer bobble strut modified to work and a stock parts store replacement mount (that is installed correctly!) But the bucking/lurching/clunk from the engine/transmission wanting to swing fore-aft is still there.


    Have you given any consideration towards offering a stock type mount but filling it to reduce the amount of movement ?

  2. #2
    turbo addict
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    Not to butt into business here but what about using a mountain bike shock. Stiff as hell but still moves.
    Ian Adams Function>Form 1990 shadow scrapped, too rusty:( 1991 Spirit R/T Scrapped, parts sold:( 1989 Turbo Caravan Daily beater with built-[I]ish [/I]​engine slowly evolving into weekend turbo beater.

  3. #3
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    Re: Front mount question

    I have both your solid bobble strut and the front mount. I have used all possible combinations of stock and your mounts to get rid of the engine bucking and at the same time not have an annoying vibration at 55mph. The only solution that really works so far is having a mopar performance Neon stiffer bobble strut modified to work and a stock parts store replacement mount (that is installed correctly!) But the bucking/lurching/clunk from the engine/transmission wanting to swing fore-aft is still there.

    Having both the PolyBushings front mount and the bobble strut on....you have vibration.
    Take just the rear off (the bobble strut) and vibrations still there?
    Add the bobble stut one and remove the front...is the vibration there?
    Great stuff for great cars! Poly engine mounts and bushings at: http://www.polybushings.com

  4. #4
    Super Moderator Turbo Mopar Staff 135sohc's Avatar
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    Re: Front mount question

    Take just the rear off (the bobble strut) and vibrations still there?
    Add the bobble stut one and remove the front...is the vibration there?
    yes to both, its less severe but depending upon speed/rpm its still there. When I installed the bobble strut it was done without preload.

  5. #5
    turbo addict
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    Re: Front mount question

    If you are getting vibration with the bobble strut off, using just the front mount...its installed wrong somehow.

    ---------- Post added at 09:44 PM ---------- Previous post was at 09:44 PM ----------

    OR the passenger mount is causing it.

    ---------- Post added at 09:48 PM ---------- Previous post was at 09:44 PM ----------

    What passenger mount is it? Is it new? Upside down? Old...sagging?
    Great stuff for great cars! Poly engine mounts and bushings at: http://www.polybushings.com

  6. #6
    Super Moderator Turbo Mopar Staff 135sohc's Avatar
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    Re: Front mount question

    Its a 94 so I've got the mount that can only go one way. It is a stock one in good condition.

  7. #7
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    Re: Front mount question

    And then my front really cant be put in wrong.
    I have not heard issues with vibration from the front "late" mount.
    I have installed many without vibration.
    Bring it on by, lets take a look! (I wish)
    Great stuff for great cars! Poly engine mounts and bushings at: http://www.polybushings.com

  8. #8
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    Re: Front mount question

    Have the same issue but worse thanks to lying to the ecu and sending a false narrowband signal to leanburn for MPG. around 1500-2000 rpms its pretty crappy.

    Waiting on his parts so I can have a full solid in the particular vehicle of mine that doesn't have one but wishing for trans mount. Solid mounts tend to beat up the weakest link.

    Have tried both upwards and downwards preload on the bobble and I currently upwards.
    Brent GREAT DEPRESSION RACING 1992 Duster 3.0T The Junkyard - MS II, OEM 10:1 -[I] Old - 11.5@125 22psi $90 [U]Stock[/U] 3.0 Junk Motor - 1 bar MAP [/I] 1994 Spirit 3.0T - 11.5@120 20 psi - Daily :eyebrows: Holset He351 -FT600 - 393whp 457ft/lb @18psi 1994 Spirit 3.0T a670 - He341, stock fuel, BEGI. Wife's into kid's project. 1990 Lebaron Coupe 2.2 TI/II non IC, a413 1990 Spirit 3.0 E.S. 41TE -- 1993 Spirit 3.0 E.S. 41TE -- 1994 Duster 3.0 A543 1981 Starlet KP61 Potential driver -- 1981 Starlet KP61 Parts -- 1983 Starlet KP61 Drag 2005 Durango Hemi Limited -- 1998 Dodge 12v 47re. AFC mods, No plate, Mack plug, Boost elbow -- 2011 Dodge 6.7 G56

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