PDA

View Full Version : bad vibes



benny_64
06-20-2005, 10:49 PM
when i get going about 55 mph i start getting some bad vibrations which i beleive are from the engine but could be from the tranny, i am not too sure, but at 60 they are at their worst and smooth out at about 70. is something way out of balance. take really good care of my car and keep all the fluids topped off, i am not too sure what started this.

slow64
1964 lark daytona
bd_marks@yahoo.com

Roscomacaw
06-21-2005, 08:20 AM
Had the wheels balanced? Bad U-joint? Unbalanced driveshaft?[?]

Miscreant at large.

1957 Transtar 1/2ton
1960 Larkvertible V8
1958 Provincial wagon
1953 Commander coupe
1957 President 2-dr
1955 President State
1951 Champion Biz cpe
1963 Daytona project FS

benny_64
06-21-2005, 10:30 AM
i know the wheels are good, i just balanced them a week ago. the u-joint or driveshaft, not sure, how do you go about balancing a drive shaft?

slow64
1964 lark daytona
bd_marks@yahoo.com

Roscomacaw
06-21-2005, 02:14 PM
Remove it and take it to a driveline shop. Check your U-joints for a start.

This sounds like a harmonic vibe problem since it goes away at different speeds. Man, there's LOTSO things that can cause such a condition and each one by itself is not evident. Sometimes you'll have two factors working in unison to give you grief. Tough to decipher!:(

Motor mounts all good and not seperated? Sometimes they look good at a glance but have come un-stuck from one of the metal component parts. An engine can do goofy things under load that you'll never see looking at it with the hood open![:0]

Miscreant at large.

1957 Transtar 1/2ton
1960 Larkvertible V8
1958 Provincial wagon
1953 Commander coupe
1957 President 2-dr
1955 President State
1951 Champion Biz cpe
1963 Daytona project FS

52hawk
06-21-2005, 06:43 PM
I've had cars with bad u-joints that act this way.it seems like at a higher speed,they can center themselves and smooth out.Other than tires and u-joints,any out of balance part,-balancer,crank,flywheel,cooling fan,etc-will only get worse as speed increases.
Rev it up sitting still-does it vibrate? Or does it only vibrate when car is moving?

last of the finned Hawks!!

benny_64
06-21-2005, 07:54 PM
just in neutral i get no vibes while reving it up, and hardly any whlie on level ground or downhill, it doesn't really get bad as i discovered today, till i am going up hill, when the engine starts to work harder the vibes get worse. oh what a pain. and my damn heater core crapped out and leaked all over my floor boards. its going to be another great weekend of maintenance, so i have a ride to work next week!

slow64
1964 lark daytona
bd_marks@yahoo.com

52hawk
06-21-2005, 08:05 PM
u-joints , would be my first guess -you can usually spot a bad u-joint with visual inspection.Jack the car up ,put SAFELY on jackstands,grab the driveshaft and try to turn it quickly back and forth.Listen for slop,watch for slop,at each end of shaft-also look for rust falling out of either joint.Let us know what you find!

Are those fins supposed to be on there?from the factory?

Danarchy
06-21-2005, 08:37 PM
engine under load (going up hill), I'm guessing U-Joints or Motor Mounts, or both if it's been going on very long. :(

Dallas,Texas

52hawk
06-21-2005, 09:25 PM
Yeah,and u-joint and motor mount problems could each amplify the other!Check all 4 mounts,if they have never been replaced,they are long over due. Especially a rear [transmission mount] could let the engine and trans shift under load and cause this problem,by putting the driveline temporarily 'out of line'when you step on the gas.

Are those fins supposed to be on there?from the factory?

hank63
06-21-2005, 09:46 PM
Happens when driving, but not when stationary - that suggests the drive line (prop shaft / rr axle / rr wheels.
Out-of-balance is measured in "inch-ounces", ie weight & distance from centre of rotation. It's always there (if that's the problem), but is usually only felt at a certain speed due to resonance, etc.
The prop shaft can be the culprit, even if the uni-joints are firm. Look for impact damage on the tube or signs of a balancing weight having fallen off.
Another possibility (not frequent) can be a uni-joint stiff in one direction and loose in the other.
/H

benny_64
06-21-2005, 10:02 PM
i checked the drive shaft and there was no sign of damage, i couldn't find any weights. also when i put my car in gear i get a loud ping, then some raspy sounds at low idle, this doesn't always happen but pretty often. another thing about the vibes, they only happen during excelleration, as soon as i let off they go away.

slow64
1964 lark daytona
bd_marks@yahoo.com

Roscomacaw
06-22-2005, 12:05 PM
Sure sounds like a tired U-joint![xx(]

Miscreant at large.

1957 Transtar 1/2ton
1960 Larkvertible V8
1958 Provincial wagon
1953 Commander coupe
1957 President 2-dr
1955 President State
1951 Champion Biz cpe
1963 Daytona project FS

benny_64
06-22-2005, 07:45 PM
can i get u-joints at my FLAPS, or am i going to have to order them, if i can get them down the street, does any one have a part number or any tips? i have a 64 lark, 2 speed auto with a dana 27.

slow64
1964 lark daytona
bd_marks@yahoo.com

hank63
06-22-2005, 08:56 PM
Try your local ball/roller bearing shop. You may be surprised at what they have on the shelf.
/H

Alan
06-22-2005, 10:48 PM
If you have Studebaker Part No. 1562019 it is the same as Spicer 5-200X with out grease fitting. Same as Borg Warner 114-549. The standerd Duty is Spicer 5-121X. Same as B-W 114-521 with grease fitting. Heavy Duty is Spicer 5-153X. Same As B-W 114-521HD
Spicer No. 5-200X Spicer No. 5-121X
Lempco U113 Alloy J5-121
Neapco 28051XB Neapco 28051X
Pilot 11521UB Haberle H1521X
Precision 360 Lempco U113
Republic CB-1270U Perfection RG-521X
Western N-1521RU Precision 329

OEM Part nos. for Spicer 5-121X
Auto Car 3AA-01172 , 132115
J.I. Case D26204
Chrysler 132115, 1818920, 1818921
Elucid 2354320
Ford A9LY-4635A, C3AZ-4635C, B7A-4039A, B7S-7039A, MFK-7039
GMC Truck 2325029, 2325829, 3713926
Hudson/Nash 3117373
International 121406R91
Kaiser 208075
Land Rover 541858
Michigan 865665
Pontiac 518648
Rambler 164369, 3117373
Reo 1107P2, 1795P2
White 400934
Willys 906929

Also used by
AMC/Rambler 1968 All models
Chevy Truck 1960-66 C15 w/Auto trans
Corvan P13 1960-66 C14 w/ Auto trans
Dodge truck 1950-56 All 3/4 ton, 1950-57 All half ton
Ford Truck 1953-68 F100, 1960-62 P100
Ford 1961-67 front position on all 6 cyl and 289 V8
1956-60 T-Bird
GMC Truck 1960-68 1000 Series 1/2 ton w/3 speed
IHC Metro 1966-68 M700, M800, M1100
Kalamazoo 1949-56 3600 Tractor, 4000 KAL truck
Mercury 1967 Cougar w/289 Emg. Front position

This is probibly more than you need but it helps when you go into a Pep boys or Auto Zone and the counter person keeps asking what car and what year is it for.

<center></center>

benny_64
06-23-2005, 09:00 PM
hey thanks alot, that should be more then enough to get me some u-joints, does it matter if i use heavy duty or regular? or with or without the greese fitting? i'm thinking i want heavy duty with a greese fitting, is there anything about that, that won't work with my ride?

slow64
1964 lark daytona
bd_marks@yahoo.com

Alan
06-23-2005, 10:52 PM
No