Rear end shudder
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- spl310
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Re: Rear end shudder
Are you certain that it is from the rear end? It sounds like clutch chatter to me
"Wow, a Roadster!" Stuart Little
1967.5 2000
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1967.5 2000
1967.5 2000
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- spyder
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Re: Rear end shudder
Oily clutch?
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Re: Rear end shudder
Did you find the fault ? Sounds like a frozen U-joint, would have to remove shaft to test. I would also want to see if the two U-joints are in phase as the shaft can be assembled wrong at the splines.
Good luck.
Good luck.
SRL-01749
My other car is an unfinished project. (as well)
My other car is an unfinished project. (as well)
- jarhead
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Re: Rear end shudder
Update. I finally got it to my buddies shop and got it up on the lift. No problems with mounts, drive shaft or u joints as far as we could see. His guy drove it and got it in gear on the lift. He thinks not a differential issue either. Although he didn't give a good answer either. He didn't think it's clutch chatter either (that was my first guess) but thought it IS coming from the rear end.
Lee
'66 SPL311-00676
'66 SPL311-00676
- fj20spl311
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Re: Rear end shudder
+1ed B wrote:Just for the heck of it, check your motor mounts as well.
Check your motor mounts. Does the shifter move excessively?
Phil
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67.5 SRL311-00148 Blue (FJ cruiser VOODOO Blue)
67.5 SPL311 FJ20E teal SDS EFI
69 SRL311 SOLD
19 Raptor SCAB
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Re: Rear end shudder
Did he verify that the U-joints are in phase as twistin asked?jarhead wrote:Update. I finally got it to my buddies shop and got it up on the lift. No problems with mounts, drive shaft or u joints as far as we could see. His guy drove it and got it in gear on the lift. He thinks not a differential issue either. Although he didn't give a good answer either. He didn't think it's clutch chatter either (that was my first guess) but thought it IS coming from the rear end.
located in Chester NH
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1967 1600 in restoration
2013 Arctic Cat F-1100 turbo
Ford F-350 6.0
Ford 9000 puller, Ford 960 puller, Ford 901show, Ford 971 worker, Oliver 70 waiting its turn
- jarhead
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Re: Rear end shudder
Motor mounts are good but I'm not sure about the u joint "phase" question. He said "u joints are fine."
Let me clarify the problem once more. Rear end shakes when clutch is engaging. It stops once fully engaged and I go through gears. It is worse when I engage the clutch with higher rpm.
Let me clarify the problem once more. Rear end shakes when clutch is engaging. It stops once fully engaged and I go through gears. It is worse when I engage the clutch with higher rpm.
Lee
'66 SPL311-00676
'66 SPL311-00676
- spl310
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Re: Rear end shudder
I'm still betting on clutch chatter
"Wow, a Roadster!" Stuart Little
1967.5 2000
1967.5 2000
1964 1500
1964 1500
1967.5 1600
1968 chassis
2006 Acura MDX
2013 Volkswagen Jetta TDI wagon
1995 F350 Powerstroke!
More...
1967.5 2000
1967.5 2000
1964 1500
1964 1500
1967.5 1600
1968 chassis
2006 Acura MDX
2013 Volkswagen Jetta TDI wagon
1995 F350 Powerstroke!
More...
- cktrap
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Re: Rear end shudder
You don't have any load on it when the wheels are off the ground. the clutch won't chatter without some resistance. It sounds like the clutch to me also
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- jarhead
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Re: Rear end shudder
That's what I was thinking. So it gets back to my concern. Assuming it's clutch chatter, will it harm anything to keep driving it and will it get any better if I drive the hell out of it?
Lee
'66 SPL311-00676
'66 SPL311-00676
- spl310
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Re: Rear end shudder
I doubt that it will get better. I had chatter in a mustang, and it almost ruined the flywheel. It is also vet hard on all of the mechanics of the car
"Wow, a Roadster!" Stuart Little
1967.5 2000
1967.5 2000
1964 1500
1964 1500
1967.5 1600
1968 chassis
2006 Acura MDX
2013 Volkswagen Jetta TDI wagon
1995 F350 Powerstroke!
More...
1967.5 2000
1967.5 2000
1964 1500
1964 1500
1967.5 1600
1968 chassis
2006 Acura MDX
2013 Volkswagen Jetta TDI wagon
1995 F350 Powerstroke!
More...
- dbrick
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Re: Rear end shudder
The heat hardens the face in those spots and worsens wear. If it's oil on the clutch, then not as bad on the flywheel, but the chatter and shaking loosens stuff. Either way you probably need a clutch, and if it's a leak, fix the leak while it's apart. Is the engine or trans losing oil or any visible leaks?spl310 wrote:I doubt that it will get better. I had chatter in a mustang, and it almost ruined the flywheel. It is also vet hard on all of the mechanics of the car
Dave Brisco
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- spl310
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Re: Rear end shudder
Vibration is quite the destructive force. I had a tailshaft bushing fail once while on the road. The vibration resulted in the bell housing breaking.
"Wow, a Roadster!" Stuart Little
1967.5 2000
1967.5 2000
1964 1500
1964 1500
1967.5 1600
1968 chassis
2006 Acura MDX
2013 Volkswagen Jetta TDI wagon
1995 F350 Powerstroke!
More...
1967.5 2000
1967.5 2000
1964 1500
1964 1500
1967.5 1600
1968 chassis
2006 Acura MDX
2013 Volkswagen Jetta TDI wagon
1995 F350 Powerstroke!
More...
- garth
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Re: Rear end shudder
dbrick wrote:The heat hardens the face in those spots and worsens wear. If it's oil on the clutch, then not as bad on the flywheel, but the chatter and shaking loosens stuff. Either way you probably need a clutch, and if it's a leak, fix the leak while it's apart. Is the engine or trans losing oil or any visible leaks?spl310 wrote:I doubt that it will get better. I had chatter in a mustang, and it almost ruined the flywheel. It is also vet hard on all of the mechanics of the car
It's unanimous! Vibration is evil and likely causing unseen damage to other components. Pull the tranny and inspect the clutch. It could be as simple as a broken spring or rivet and the resultant unbalance causing vibration.spl310 wrote:Vibration is quite the destructive force. I had a tailshaft bushing fail once while on the road. The vibration resulted in the bell housing breaking.
Garth
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- Gregs672000
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Re: Rear end shudder
Better to just deal with it. Pulling the engine and trans isn't too hard.
Greg Burrows
'67 2000 #588
Tacoma, WA
'67 2000 #588
Tacoma, WA