- Oct 21, 2006
- 409
- 15
- 29
My engine had the wrong balancer (28oz.) on it. It had a vibration from 1000-1500 rpms. (shook the steering wheel) I just recently had the right balancer put on (50 oz.) and it vibrates between 4000 and 5000 rpms. (not as hard of a vibration) This happens when driving down the road, stationary, out of gear, clutch disengaged or engaged.
It's totally smooth otherwise. I brought it to an engine builder I know, and he said that the car had been in an accident before I bought it . ( Motor mounts are new) I have no history of what has been done to this engine. It runs strong, even with 124000 miles on it. I drag raced it hard all summer with the 28 oz balancer on ( that's what I use the car for, not a daily driver)
My mechanic said it could be a number of things. Bent crank, broken crank, wrong flywheel, flywheel out of balance, clutch out of balance etc.... But where do you start?
By the time he goes through everything to find the problem and repair it, I could have had him throw in a 345 hp Ford Racing Crate Motor for a couple thousand dollars more. I was going to have him start with a new clutch set-up and zero balance the flywheel to see if that works. If that's not the problem, that would be the start of spending loads of money on an engine that has 124000 miles on it and no knowledge of what kind of condition the insides are in. I'm torn between a new engine or fixing this one. Other than the vibration, this engine runs great!!! 14.2 ET 1/4 mile
Some advise on which way to turn would be greatly appreciated!!
Thanks!
1993 GT Mustang / Stock 302 EFI / Edelbrock 5.0 Upper and Lower Intake / 75mm Throttle Body / C&L Cold Air w/76mm Mass Air / K&N Filter / Electric Fan / BBK Underdrive Pulley's / A.C. Removed / BBK Headers / Flowmaster / H-Pipe / T-5 / Alum. Driveshaft / 3.73 Gears / Eaton H.D. Posi / Moser 31 Spline Axles/ Subframe Connectors / Line Lock / Driveshaft Loop / B&M Short Throw Shifter / 16" Chrome Cobra Wheels / Nitto Drag Radials Rear / BFG G-Force Sport Front / Racing Upper and Lower Control Arms / Lakewood Adjustable Drag Shocks/ Holley 190 lph Fuel Pump / Holley Adjustable Fuel Pressure Regulator / MSD EFI Blaster Coil/ Stock Heads/ 19# Injectors
It's totally smooth otherwise. I brought it to an engine builder I know, and he said that the car had been in an accident before I bought it . ( Motor mounts are new) I have no history of what has been done to this engine. It runs strong, even with 124000 miles on it. I drag raced it hard all summer with the 28 oz balancer on ( that's what I use the car for, not a daily driver)
My mechanic said it could be a number of things. Bent crank, broken crank, wrong flywheel, flywheel out of balance, clutch out of balance etc.... But where do you start?
By the time he goes through everything to find the problem and repair it, I could have had him throw in a 345 hp Ford Racing Crate Motor for a couple thousand dollars more. I was going to have him start with a new clutch set-up and zero balance the flywheel to see if that works. If that's not the problem, that would be the start of spending loads of money on an engine that has 124000 miles on it and no knowledge of what kind of condition the insides are in. I'm torn between a new engine or fixing this one. Other than the vibration, this engine runs great!!! 14.2 ET 1/4 mile
Some advise on which way to turn would be greatly appreciated!!
Thanks!
1993 GT Mustang / Stock 302 EFI / Edelbrock 5.0 Upper and Lower Intake / 75mm Throttle Body / C&L Cold Air w/76mm Mass Air / K&N Filter / Electric Fan / BBK Underdrive Pulley's / A.C. Removed / BBK Headers / Flowmaster / H-Pipe / T-5 / Alum. Driveshaft / 3.73 Gears / Eaton H.D. Posi / Moser 31 Spline Axles/ Subframe Connectors / Line Lock / Driveshaft Loop / B&M Short Throw Shifter / 16" Chrome Cobra Wheels / Nitto Drag Radials Rear / BFG G-Force Sport Front / Racing Upper and Lower Control Arms / Lakewood Adjustable Drag Shocks/ Holley 190 lph Fuel Pump / Holley Adjustable Fuel Pressure Regulator / MSD EFI Blaster Coil/ Stock Heads/ 19# Injectors