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vibration in motor,after shift balancer??

  • Thread starter Thread starter BadAndy
  • Start date Start date Jun 3, 2006
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BadAndy

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#1
  • Jun 3, 2006
  • #1
I have a funny viberation in my 95 GT,s motor do they have a problem in the harmonic balancer like the fox body 5.0,s do???
 

1TallMF

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#2
  • Jun 3, 2006
  • #2
YES! Apparently they use the same balancer as the fox's. They're very popular for failing.
 
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BadAndy

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1TallMF said:
YES! Apparently they use the same balancer as the fox's. They're very popular for failing.
Click to expand...

thank you soooooo much!!!! how can i tell ???? i tried watching it with the motor running to see if it was wobling, but i could NOT see anthing wrong
 

1TallMF

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#4
  • Jun 3, 2006
  • #4
I haven't had this problem yet, but I guess you just reach in there and see if you can move the outer part by hand. A good one should feel solid.
 

1TallMF

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#5
  • Jun 3, 2006
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Also, if you have a timing light, check to see if the timing is still where it should be, if its off by a substancial amount, say lower than 8* or higher than 16* (with the spout unpluged of course), you can bet that the balancer has shifted a bit. Check to see if it deviates a bit when looking at it with the timing light.
 
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BadAndy

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1TallMF said:
Also, if you have a timing light, check to see if the timing is still where it should be, if its off by a substancial amount, say lower than 8* or higher than 16* (with the spout unpluged of course), you can bet that the balancer has shifted a bit. Check to see if it deviates a bit when looking at it with the timing light.
Click to expand...


thanks that sounds like a good idea!!!
 

94tang

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#7
  • Jun 3, 2006
  • #7
i have a weird vibration in my engine too...startd about 1700 and stops around 2200....ive changed the balancer but it didnt help
 

2L8ULUZ2

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#8
  • Jun 3, 2006
  • #8
94tang said:
i have a weird vibration in my engine too...startd about 1700 and stops around 2200....ive changed the balancer but it didnt help
Click to expand...

I have the exact same problem and I cannot figure out what it is either. Mine is in the same rpm range and does it in neutral and with the clutch in or out it does not matter. Mine can also be felt through the steering wheel. Anybody got any ideas?
 

The Green GT

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#9
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  • #9
Just rub your hand along the front and back of the balancer and feel for rubber sticking out. Mine had rotated about 90* when I changed it.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
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#10
  • Jun 4, 2006
  • #10
Yep, the balancer is two rings held together with an elastomer. The biggest tells are the timing reading being off, like 1TMF said, rubber coming out (TGGT) and wobbling. WHen the elastomer takes a dump, it lets the outer ring shift (the inner ring is keyed to the crank). They often look like someone hit the front of the balancer with a hammer (longitudinal runout).

A good rule is that if the elastomer is cracking in places, go ahead and replace.

For the guys with the off idle vibes, does it occur while moving or stationary? It could also be a resonance issue. Have either of ya run a cylinder balance test? You might be able to get it to test while in that range and if it's an actual misfire, it can be revealed (or discounted).

Good luck.
 

mo_dingo

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#11
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If you have removed your flywheel, did you mark it and put it in the same place? If you didn't, let me know and I can tell you how to put it back correctly.
Scott
 

2L8ULUZ2

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#12
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mo_dingo said:
If you have removed your flywheel, did you mark it and put it in the same place? If you didn't, let me know and I can tell you how to put it back correctly.
Scott
Click to expand...

I thought that the flywheel would only line up one way with the crank? I have had mine off but I was going on the above statement when I put it back on.
 
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BadAndy

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flywheel bolts only line up one way
 

mo_dingo

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#14
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BadAndy said:
flywheel bolts only line up one way
Click to expand...

Really? Well I didn't know that. Sometimes they do make things idiot proof....lol.

I took mine off, and noticed the left edge of the weight on the back of the flywheel points to the hole in the crankshaft that doesn't have threads.
Scott
 

BlackVert

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#15
  • Jun 4, 2006
  • #15
i'm with the others, probably the balancer, but also check the motor mounts
 
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speedytang

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Jun 5, 2006
#16
  • Jun 5, 2006
  • #16
You can get this feeling from the engine from the transmission mounts going bad or your transmission bar that goes across has rusted out on the ends causing the complete assy. to vibrate.
 
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BadAndy

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#17
  • Jun 6, 2006
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Im begining to think its in my clutch, I put new wires and plugs in the car, but no better ,then I took the balancer off and put it on top of a new on at autozone and the keyway and timming marks lined up, 2 weeks ago the car had a funny rattle under it so i tore the remaining heat shealds off but the rattle was still their, NOW the rattle went away but i now have a viberation, i think sonthing is going wrong with the clutch, what do you guys think???

Thank you sooooooooo much!!!!!!!!!!!
 
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