help!!!!!!!

Old 06-07-2008, 02:43 PM
  #1  
kw89425
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Default help!!!!!!!

somebody tell me why all new poly mounts on motor and trans nothing is solid the driveshaft is not to long and i never made a pass almost did a burnout almost




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Old 06-07-2008, 02:44 PM
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kw89425
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oh and is it broke to far back to put an ultra bell on it and use it?
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Old 06-07-2008, 05:59 PM
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cid636
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Well I've never heard of all poly mounts causing anything like that, although I've never tried it either. I run front and mid-motor plates with a poly trans mount and have never had a problem with that. I don't know what would have caused it but, I would think that case is garbage now It broke behind the front pump, even the sealing surface for the pumps O-ring is gone! An Ultra bell bolts to the front of the front pump.
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Old 06-07-2008, 06:49 PM
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us7race
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Please tell me more about your setup...
What rear suspension? Leaf Springs? Pinion Angle?
What kind of Car? How much Horsepower est.?
That is crazy... :?
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Old 06-07-2008, 06:59 PM
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hollowayshotrods
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WOW, I sure am glad I saw this post! I have never used poly mounts either, was going to put them on my latest "affair" (as my wife calls them). Thinking I may pass on that idea now!!
Good luck figuring it out.
Rudy

Finally figured out how to resize pictures!!


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Old 06-07-2008, 08:03 PM
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kw89425
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ladder bar coil over about 3 degrees nova around 600. car has never made a pass i just started the burnout. i di test the transbrake twice in front of the house at 3000
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Old 06-07-2008, 08:53 PM
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Tod74
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:? Good lord.....I run a solid motor mount with a motor plate on the front and a stock rubber trans mount.. wow.....just, wow. Something is obviously wrong and it aint the poly mounts,in my opinion.
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Old 06-07-2008, 08:54 PM
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gpracer
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your having the same problem we are having on the 3rd 1 now we have a stroker motor with a balancer and flywheel for internal balance they are saying that might be doing it we are putting a 400 balancer and flywheel and try it again will let u know what happens if u figure yours out would like to know what it is hope u or i can get this figured out it costing alot
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Old 06-07-2008, 10:34 PM
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us7race
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If you did it in the burnout, then I would think it has to be in the Driveshaft...Maybe a U-Joint Failed maybe the driveshaft was bent?
There wasn't alot of load on it during a burnout. So I am guessing you had the 7/8-1" of play for the driveshaft also. I had a U-Joint Break the Rear one twice..about the finishline and it did the same thing. I would put my money on a U-Joint Failure. I don't think the mounts had anything to do with it. I run stock rubber shells on the frame and a replacement rubber trans mount. No issue's.
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Old 06-08-2008, 06:02 AM
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kw89425
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i put new joints in befor i went. i had it running in gear on the jack stands when i finished it shifted from low to high had no vibration what so ever.
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