L322 Vibration through the seats at 55-60

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The movement feels more like its the rubber moving more than the bearing though. But I guess that would have the same effect of the prop no just spinning.
 
I've moved my answers to this issue back over to prop-shaft fabrication so anyone in future can pick it up in a search :)
 
Greetings and salutations , to one and all. Welcome to 'have a guess corner'. Golden girl has now had propshaft replaced, all diffs/oil checked, wheel balance done, tyres/ tyre pressures correct and the guys at Gibsons still can't get to the bottom of this vibration at 55mph. they have tried it on the rolling road and there is vibration through exhaust but all bolts and mounts are secure, engine is secure in bay. He managed to replicate it at 30mph on a hill but still no further forward.
As an extra bit of info, there is no audible noise so cannot use chassis ear , also number 6 injector was firing too high but has now been replaced and all outputs are spot on.
So come one, come all, let's have your best guess or solution , the floor is yours ....................................
 
Greetings and salutations , to one and all. Welcome to 'have a guess corner'. Golden girl has now had propshaft replaced, all diffs/oil checked, wheel balance done, tyres/ tyre pressures correct and the guys at Gibsons still can't get to the bottom of this vibration at 55mph. they have tried it on the rolling road and there is vibration through exhaust but all bolts and mounts are secure, engine is secure in bay. He managed to replicate it at 30mph on a hill but still no further forward.
As an extra bit of info, there is no audible noise so cannot use chassis ear , also number 6 injector was firing too high but has now been replaced and all outputs are spot on.
So come one, come all, let's have your best guess or solution , the floor is yours ....................................
Bet the missus doesn't want it sorted.:oops::D:D
 
Other than using your tractor for offroad pleasures, any idea on the mystery vibration? Or did you just pop in for a perv ;)
 
Other than using your tractor for offroad pleasures, any idea on the mystery vibration? Or did you just pop in for a perv ;)
Bugger I've been sussed. If you have done the prop and all the mounting are ok, I don't known about the L322 but vibration will be transmitted on the 38 if the crankshaft damper on the crank pulley is on it's way out. hope this help's.:D
 
Bugger I've been sussed. If you have done the prop and all the mounting are ok, I don't known about the L322 but vibration will be transmitted on the 38 if the crankshaft damper on the crank pulley is on it's way out. hope this help's.:D
I'm going to gather all ideas/guesses/solutions together and give them to the guys at Gibsons. eventually one of them might be it. So every little helps :)
 
I guess that you have done the rear prop. What is the front one like? Had a vibration on a TD5 Discovery that was caused by a failed double Cardan joint on the front prop.
 
Thanks GDM but the guys have checked everything it 'could' be, now looking for 'what it couldn't be' ideas or some weird thing that caused same issue that was something 'you'd never think of causing vibration'.
But I'll add it to the list.
 
I may be talking through my arse (I don't even own a Range Rover - at least not one that's road legal) but don't torque converters cause vibration problems if they are on the way out?

I wait for others who know what they are talking about to shoot me down in flames.

Pete
 
I may be talking through my arse (I don't even own a Range Rover - at least not one that's road legal) but don't torque converters cause vibration problems if they are on the way out?

I wait for others who know what they are talking about to shoot me down in flames.

Pete
Anything that revolves and is worn/unbalanced will cause vibration.
 
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