How come turning the driveshaft 180 deg's can stop a vibration?
10-22-2000, 08:55 PM
#1
Supreme Member
Thread Starter
Join Date: Jan 2000
Location: jeff NY usa
Posts: 1,122
Received 0 Likes
on
0 Posts
Car: 86 Z28
Engine: 350
Transmission: W/C T-5
Axle/Gears: 9 BOLT 3.45 POSI
How come turning the driveshaft 180 deg's can stop a vibration?
I have aslight vibration since the last time the shaft was out na dI am woundering, if maybe the shaft was turn 180 degrees from the last time it was in, But my ? is why would it matter.
------------------
86Z28, GM 350, Jet perf Q-jet & chip Dual snorkel air cleaner, Edelbrock performer intake, Edelbrock headers, Edelbrock cat-back, Off road pipe, MSD 6AL, Accel Super Coil, Taylor Spiro-pro wires, Rapid fire plugs, Jet fan switch, World class t-5, Hurst Short Throw Shifter, Ram Flywheel, Center force dual friction clutch,Aluminum drive shaft, BW disc rear 3.45's & a posi, PBR calipers, Earls braided brake lines, Polygrapite bushings all the way around, poly tranny mount & torque arm mount, Hotchkis lower control arms & panhard rod, Rancho limiter straps, KYB struts & shocks, Gm Wonderbar, Edelbrock strut tower brace, SSM sub frame connectors, Jamex lowering springs, Carbon metallic brake pads, Crossed drilled rotors, Mobil 1 Tranny fluid & motor oil, GM syntheic rear end oil, K&N, Grant stering wheel, 1,200 watt system, Jet Black Paint, 91 Z28 rims, 92 wing, Tinted windows.
------------------
86Z28, GM 350, Jet perf Q-jet & chip Dual snorkel air cleaner, Edelbrock performer intake, Edelbrock headers, Edelbrock cat-back, Off road pipe, MSD 6AL, Accel Super Coil, Taylor Spiro-pro wires, Rapid fire plugs, Jet fan switch, World class t-5, Hurst Short Throw Shifter, Ram Flywheel, Center force dual friction clutch,Aluminum drive shaft, BW disc rear 3.45's & a posi, PBR calipers, Earls braided brake lines, Polygrapite bushings all the way around, poly tranny mount & torque arm mount, Hotchkis lower control arms & panhard rod, Rancho limiter straps, KYB struts & shocks, Gm Wonderbar, Edelbrock strut tower brace, SSM sub frame connectors, Jamex lowering springs, Carbon metallic brake pads, Crossed drilled rotors, Mobil 1 Tranny fluid & motor oil, GM syntheic rear end oil, K&N, Grant stering wheel, 1,200 watt system, Jet Black Paint, 91 Z28 rims, 92 wing, Tinted windows.
10-24-2000, 09:01 PM
#3
Supreme Member
Join Date: Jul 1999
Location: Vereinigten Staaten
Posts: 2,767
Likes: 0
Received 2 Likes
on
2 Posts
Car: Take
Engine: Your
Transmission: Pick
It doesn't take much of a variance to cause a vibration and if there is some imbalance in the companion flange (yoke), it can be somewhat countered by any imbalance in the driveshaft 180* out. For example, say you have like 3 grams out of balance on one side the of yoke, and 5 grams on the driveshaft. With the two heavy spots 180*, there is only 2 grams out of balance which may not be felt, but with both heavy spots on the same side, now you have 8 grams out. These numbers are only used for example, but I think you get the picture. If the shaft and yoke are perfectly balanced, then it won't matter either way.
------------------
If you live in Southeastern US, check us out!
South East Thirdgen
"I used to have a handle on life, but then I used it as a plunger and broke it" -The Wave
ASE Master Tech + L1
Savannah, GA
'87 Trans Am-K&N,Cold air induction, SSM SFC, Boxed LCAs, 8mm Accel wires, Flowmaster, 16" GTA rims.
'97 Bonneville SSE
------------------
If you live in Southeastern US, check us out!
South East Thirdgen
"I used to have a handle on life, but then I used it as a plunger and broke it" -The Wave
ASE Master Tech + L1
Savannah, GA
'87 Trans Am-K&N,Cold air induction, SSM SFC, Boxed LCAs, 8mm Accel wires, Flowmaster, 16" GTA rims.
'97 Bonneville SSE
Thread
Thread Starter
Forum
Replies
Last Post
ambainb
Camaros for Sale
11
04-25-2016 09:21 PM
