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05-22-2006, 01:21 AM

Twisted

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Why in the world would...

Why would changing a motor mount cause a vibration between 2500 and 3000 rpms? Any ideas?

05-22-2006, 01:52 AM

Grimace5.0

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RE: Why in the world would...

No idea.. is that what your vibe is/was?

05-22-2006, 01:56 AM

TENGRAM

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RE: Why in the world would...

possibly need to readjust the motor mounts?

05-22-2006, 03:00 AM

Twisted

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RE: Why in the world would...

Quote:

ORIGINAL: Grimace5.0

No idea.. is that what your vibe is/was?

It sure seems like it showed up the day I changed the motor mount. I used to feel it lightly on the highway, at around 75. Now I feel it in every gear in that rpm range. So motor mounts need to be adjusted sometimes, Tengram?

05-22-2006, 03:38 AM

TENGRAM

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RE: Why in the world would...

yeah, the engine has to sit on them just right or you'll get vibrations

05-22-2006, 04:02 AM

Twisted

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RE: Why in the world would...

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ORIGINAL: TENGRAM

yeah, the engine has to sit on them just right or you'll get vibrations

Thanks, Tengram. I'll look into that.[sm=smiley20.gif]

05-22-2006, 07:49 PM

TENGRAM

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RE: Why in the world would...

what mounts did you replace them with? i have heard of problems with some of the poly ones, specifically energy sus. does the engine appear to sit level?

Quote:

ORIGINAL:5.0Hardtop
...the motor mounts have big nuts on the bottom that hold them to the crossmember, the holes in the crosmember are slotted. If motor leans, loosen nuts use a jack to level as needed and retighted the nuts...