vibration in defender 90 help!!!

markbmwm3 · Nov 4, 2008

hi pls help im new here!
i have a slight problem on my landy and would like to know if anyone could help?
when driving along as you do i have a slight vibration,its like a humming and only seems to happen when im in gear doin g anything between 40 and 65mph.if i dip the clutch it stops and coasts lovely and smooth.seems to get worse if im trying to accelerate hard or pull up any hills especially in gears like 3rd 4th or 5th.its hard to explain but its like a humming?changed the prop shafts but still humming! hopefully someone will be able to help before i end up changing everything to remedy it lol!
many thanks,mark.

Trewey · Nov 4, 2008

Is yer landy lifted?

dirty tom · Nov 4, 2008

u checked the uj's on the propshaft?

life2short · Nov 4, 2008

tyre noise? What tyres are you wearing

markbmwm3 · Nov 4, 2008

no its on standard springs and shocks.
whats the uj's?dont mean to sound too dumb!....prob cos i am!ha
and i dont think its tyre noise as i have 4 new tyres and when i coast outta gear it goes away. thanks everyone so far for trying to help!

yoshi · Nov 4, 2008

could be a noisy axle diff also have you checked your gearbox oil levels?

markbmwm3 · Nov 4, 2008

checking gearbox oil at weekend,dads a retired mechanic but not up to scratch on landys so should be fun!thanks

boguing · Nov 4, 2008

The complexity of a 4wd makes it a bit harder to troubleshoot.

First you have engine vibration (not usually speed-related), then you have the main gearbox, (can be speed-related), next, the transfer gearbox (slightly more likely to be speed-related). Next down the line are the propshafts, with their 4 Universal joints. Definitely speed-related. Now you have the two axle differentials, again, both speed-related. On the back you have two half-shafts, with bearings, driving the back wheels. All speed-related. Up front you also have two half-shafts, driving two Constant Velocity joints, through bearings and swivel hubs.

These are are pushed down onto the road by springs, dampers and rods.

Any one of these might be the cause of you problems.

Strangely, by jacking it up, bit by bit, and wiggling the various bits mentioned, you can generally decide on which bit is most worn out. Change it, and test again, etc.. until you're broke or bored.

muply · Nov 5, 2008

lol sounds about correct

Big Vic · Nov 6, 2008

boguing said:
The complexity of a 4wd makes it a bit harder to troubleshoot.

First you have engine vibration (not usually speed-related), then you have the main gearbox, (can be speed-related), next, the transfer gearbox (slightly more likely to be speed-related). Next down the line are the propshafts, with their 4 Universal joints. Definitely speed-related. Now you have the two axle differentials, again, both speed-related. On the back you have two half-shafts, with bearings, driving the back wheels. All speed-related. Up front you also have two half-shafts, driving two Constant Velocity joints, through bearings and swivel hubs.

These are are pushed down onto the road by springs, dampers and rods.

Any one of these might be the cause of you problems.

Strangely, by jacking it up, bit by bit, and wiggling the various bits mentioned, you can generally decide on which bit is most worn out. Change it, and test again, etc.. until you're broke or bored.

What a f**king good descriptive answer Bogey

hughesy · Nov 6, 2008

markbmwm3 said:
hi pls help im new here!
when driving along as you do i have a slight vibration,its like a humming .

What sort of level of quietness are you expecting from a Land Rover. You moght need to revise your expectations

vibration in defender 90 help!!!

markbmwm3

New Member

Trewey

Cockernee, Pasty munchin bastid.

dirty tom

Active Member

life2short

New Member

markbmwm3

New Member

yoshi

New Member

markbmwm3

New Member

boguing

Well-Known Member

muply

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Big Vic

New Member

hughesy

Well-Known Member

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