lt1 flywheel
Thread Starter
Teching In
Joined: Jul 2009
Posts: 8
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lt1 flywheel i have a vibration that feels like it is in my trans. T56. i pulled out the trans. and was looking at the clutch and flywheel. i was under the impression that the lt1 motor was a enternaly balanced motor which would make the flywheel 0 or neutral balanced but my flywheel has a small weight on it. so my question is is it ballanced with the wieight or with out the weight and then the weight is put on? and what is the weight for. thanks
Thread Starter
Teching In
Joined: Jul 2009
Posts: 8
Likes: 0
everything is stock except for the flywheel, i bought it as is and did not notice it before because i never took it on the high way at 80 miles an hour. it is not bad but i know something is going on with it.
TECH Veteran
Joined: Apr 2008
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is the vibration at all speeds or developes the faster you go?
if vibration with engine on but not moving...possible balance issue with FW & PP. you could have the PP zero balanced to rule that out. leave FW weighted as it is. a stock or replacement FW for stock external balance motor always lines up the same way on motor because of dowel pin. the PP stock has a paint dab to line up with FW but replacement clutch's typically do not so your replacement clutch 'may" not be neutral balance and the source of vibe..
if vibration at higher speeds but not low than u joints or DL angle would be something to check.
if vibration with engine on but not moving...possible balance issue with FW & PP. you could have the PP zero balanced to rule that out. leave FW weighted as it is. a stock or replacement FW for stock external balance motor always lines up the same way on motor because of dowel pin. the PP stock has a paint dab to line up with FW but replacement clutch's typically do not so your replacement clutch 'may" not be neutral balance and the source of vibe..
if vibration at higher speeds but not low than u joints or DL angle would be something to check.
