Drive line shake.

9

91badazzgt

New Member

Nov 10, 2008

2

0

0

Nov 10, 2008

#1

• Nov 10, 2008

• #1

Hey im new to stang net. Ok i have a 91 gt with a 302 bored to a 306. has 1.6 fr roller rockers,edelbrock rpm2 intake man,bbk70mm throttle body,msd wires,g force racing t-5, aftermarket clutch.And if your sitting in neutral, and rev it to like 2500 and hold it itll have a drive line shake. it didnt always do this. it was there and went away for a while. then i missed 2nd and it reved high and now its there again. Im think harmonic balancer. The block is a 1970 era block converted to roller cam ect..... can anyone help. im thinking that or a flywheel. can anyone help me out?

 

hotcobra03

Active Member

Nov 29, 1999

969

4

39

poteet,tx

Nov 10, 2008

#2

• Nov 10, 2008

• #2

What happens if you put car in gear and 2500rpms?

 

9

91badazzgt

New Member

Nov 10, 2008

2

0

0

Nov 10, 2008

#3

• Nov 10, 2008

• #3

when i put the car in gear( driving car) it'll start vibrating more furious the higher the rpms go.

 

97gsr

Member

May 4, 2005

31

0

6

Nov 10, 2008

#4

• Nov 10, 2008

• #4

i have the same problem still have not fiugured it out i am thinking possible balance.

 

hotcobra03

Active Member

Nov 29, 1999

969

4

39

poteet,tx

Nov 10, 2008

#5

• Nov 10, 2008

• #5

While sitting in neutral not touching clutch trans is spinning.in gear clutch pushed down trans stops spining.that will tell were to go next

 

EMW150

Founding Member

May 22, 2000

2,020

1

46

Roaring Spring,PA

Nov 11, 2008

#6

• Nov 11, 2008

• #6

Since it's been intermittant, that throws out a component problem. When you said 70 block I was thinking someone probably installed the wrong balance flywheel and balancer since pre-82 were 28.8 imbalance. Chances are it's the balancer or it could be a clutch problem.

 

hotcobra03

Active Member

Nov 29, 1999

969

4

39

poteet,tx

Nov 11, 2008

#7

• Nov 11, 2008

• #7

Any thing that spins can viberate.its hard to find when not on wheels or shaft.when you are still motor clutch and input shaft thru trans .when in gear trans stops than only motor and clutch spin.if vib is gone when in gear than trans is the cause.if still thier.vib in eng are 1 outa 100.clutch vib are 99 outa 100

 

7upstang91

10 Year Member

May 30, 2008

936

124

74

Florida

Nov 12, 2008

#8

• Nov 12, 2008

• #8

most likely the harmonic balancer. or get the drive shaft for any serious dents that will cause the same thing.