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5th November 2012, 09:09 PM
#1
Expert
weird vibration/knocking
hey guys over the last few 4x4 trips i have done i have got a weird vibration/knocking from the front right hand wheel when the hubs have been locked in. i could have them locked in for a few hours and hit a bump hard enough and it will start. the vibrations/knock will then seem to happen when going over bumps etc and seems to only do it while turning right. when back on the tarmac and hubs unlocked it will do it while turning right and accelerating if not accelerating wont do it. if i lock the hubs unlock them again it will stop it is weird it sort of feels like a shock bottoming out but im unsure. now i know its not a cv as a cv would cause this all the time it only seems to be on and off
any ideas. i cant seem to see any issues. my next step is hub if its hub i will do a GU upgrade
GU DX Cab Chassis TD42t non intercooled, 3 inch lift, genuine steel winch bar, 33" Pro Comp All Terrains , 3"turbo back exhaust, Icom IC 400pro UHF, 12inch LED light bar, 42" light bar
Future mods: Intercooler, more boost, dual batteries, drop links for sway bar
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5th November 2012 09:09 PM
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5th November 2012, 09:28 PM
#2
Patrol God
Dont know for sure but could be a broken spring
inside the hub
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5th November 2012, 09:35 PM
#3
Banned
Check all bushes, joints and rubbers on the steering arm, tie rod, panhard, radius arms, and steering damper mate - then check the front body mounts for cracking
CV is more like a harsh clicking/metal clunking noise (good description hey!! lol) but can cause a juttery feel also, but it doesn't sound like that from what you describe ... Check the shock and spring mounts also.
After that, I'd assume check the hub (easy job) and run a spanner over all other bolts (including the caliber mounts) and if you don't find anything then you may have to start digging deeper and rip out the cv for a look see ...
Generally the passenger side engine mount is the one that'll go, and odd that its only when turning right, but you may as well inspect it also whilst you're at it ... doubt it highly, but to be sure, to be sure as the Irish say ...
Others will have input also I'd reckon - good luck with it mate.
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5th November 2012, 10:11 PM
#4
Expert
The thing that gets me is that it only does it when hubs are locked when on road it's like hub not unlocking properly so I lock it and undo it and it goes away I can go over speed bumps and it doesn't do it but it's like something is loose I'll chuck it up on hoist and have a look
GU DX Cab Chassis TD42t non intercooled, 3 inch lift, genuine steel winch bar, 33" Pro Comp All Terrains , 3"turbo back exhaust, Icom IC 400pro UHF, 12inch LED light bar, 42" light bar
Future mods: Intercooler, more boost, dual batteries, drop links for sway bar
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5th November 2012, 10:26 PM
#5
Expert
I'm thinking it could be shockie bushes but doesn't explain the vibration
GU DX Cab Chassis TD42t non intercooled, 3 inch lift, genuine steel winch bar, 33" Pro Comp All Terrains , 3"turbo back exhaust, Icom IC 400pro UHF, 12inch LED light bar, 42" light bar
Future mods: Intercooler, more boost, dual batteries, drop links for sway bar
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6th November 2012, 09:34 AM
#6
Expert
Seeing as it does it on a right hand turn could it be steering box at all fluids are up tho
GU DX Cab Chassis TD42t non intercooled, 3 inch lift, genuine steel winch bar, 33" Pro Comp All Terrains , 3"turbo back exhaust, Icom IC 400pro UHF, 12inch LED light bar, 42" light bar
Future mods: Intercooler, more boost, dual batteries, drop links for sway bar
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6th November 2012, 10:12 AM
#7
Banned
Originally Posted by
luvpsi
Seeing as it does it on a right hand turn could it be steering box at all fluids are up tho
Doubt it unless its on absolute full lock and you're actually getting kick back through the steering wheel?
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6th November 2012, 10:18 AM
#8
Patrol God
I'll go enginge mount, just floor it and look at gear stick if it moves 5-6 inches problem solved
04 ST 3lt auto, not enough Mods to keep me happy, but getting there
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6th November 2012, 10:45 AM
#9
Expert
But it's not constant so how could it be engine mount
GU DX Cab Chassis TD42t non intercooled, 3 inch lift, genuine steel winch bar, 33" Pro Comp All Terrains , 3"turbo back exhaust, Icom IC 400pro UHF, 12inch LED light bar, 42" light bar
Future mods: Intercooler, more boost, dual batteries, drop links for sway bar
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6th November 2012, 11:34 AM
#10
Banned
Originally Posted by
threedogs
I'll go enginge mount, just floor it and look at gear stick if it moves 5-6 inches problem solved
Yeah, I mentioned mount just for checking, but would be odd to be the drivers side mount though ... but agreed on checking it to be certain.
Luvpsi
turning right would put "inertia" on the engine to the left as it were, and allow the mount to move, but you'd think engine twist would counter the inertia as such (if that makes sense). Not sure on this one, but as said, worth ruling out through the check anyways ...
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