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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Flywheel Vibration

  • Thread starter Thread starter 50gt1988
  • Start date Start date Apr 22, 2006

50gt1988

New Member
Dec 25, 2004
154
0
0
Spanaway, WA
Apr 22, 2006
#1
  • Apr 22, 2006
  • #1
I just installed my new motor and transmission and it's running great except for a horrible vibration coming from the drivetrain. It vibrates at an idle then gets worse and worse as rpms increase. I took the car to a shop to get dyno tuned and the technician told me the flywheel might be the cause. For now the car is garaged untill I solve this problem. Anyone have any ideas? Do flywheels have a certain way to be installed? My setup is a Ram Billet Steel Flywheel, Centerforce Dual Friction Clutch, Ford Motorsports Throwout bearing, and Tremec TKO 600 all brand new parts. I also have a Ford Aluminum Driveshaft that I've had for a while, never had a vibration problem.
 

ram360

Founding Member
Oct 19, 2002
2,162
1
59
Pennsylvania
Apr 22, 2006
#2
  • Apr 22, 2006
  • #2
Flywheels come in three difference balances, zero, 28oz, and 50oz.
 

ram360

Founding Member
Oct 19, 2002
2,162
1
59
Pennsylvania
Apr 22, 2006
#3
  • Apr 22, 2006
  • #3
might want to check your part # to find out which you have and call your engine builder to see which one you need depending on your inbalance. Sounds like you got the wrong one
 

50gt1988

New Member
Dec 25, 2004
154
0
0
Spanaway, WA
Apr 23, 2006
#4
  • Apr 23, 2006
  • #4
Yeah the engine should be balanced for a 28oz and I'm almost 99.9% sure that's what the Ram flywheel was.
 

LuisJNieves

New Member
Sep 4, 2011
2
0
0
Kissimmee
Sep 4, 2011
#5
  • Sep 4, 2011
  • #5
i have a 1996 5.0L and it is also doing the same thing. i changed the motor mounts thinking it was that but it wasnt.
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
43,535
21,705
234
Box behind Walmart
Sep 4, 2011
#6
  • Sep 4, 2011
  • #6
ram360 said:
might want to check your part # to find out which you have and call your engine builder to see which one you need depending on your inbalance. Sounds like you got the wrong one
Click to expand...

^this^

Your motor imbalance, harmonic balancer, and flywheel must all match.
 

LuisJNieves

New Member
Sep 4, 2011
2
0
0
Kissimmee
Nov 28, 2011
#7
  • Nov 28, 2011
  • #7
found out its my harmonic balancer. any good ones out there that you guys would recommend?
 

JasinC19

What hole is this!?!
Jun 7, 2011
312
2
19
Nov 29, 2011
#8
  • Nov 29, 2011
  • #8
I'm not as knowledgeable as some people on this forum, but after a lot of research I installed a Pioneer balancer.

I would recommend it. The craftsmanship seems great!

Link

I got this one after getting a defective Ford Racing Balancer in the mail.

Good luck!
Jason
 
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