4WD problemette...

[lacroupade]

If your 02 front prop is anything like my 02 front prop - don't be to surprised if there are no grease nipples.
As for the sliding coupling; it's now coated in a high tech plastic that is self lubricating, it does wear though, and this can give rise to vibration of the front prop.

interesting tip, thanks. no vibration though, just this infernal low-pitched whine and "I-want-to-go-right-you-ba5tard!" from the steering....

 

[rayf3262]

interesting tip, thanks. no vibration though, just this infernal low-pitched whine and "I-want-to-go-right-you-ba5tard!" from the steering....

The: "I-want-to-go-right-you-ba5tard!" is easily fixed!

 

[lacroupade]

The: "I-want-to-go-right-you-ba5tard!" is easily fixed!

true, but not that attractive when you're trying to keep straight in a foot of snow while some Portugese w*nker in a 40-tonner is overtaking you on the other side (and yes, he was wrapped round the central reservation three miles down the road I'm pleased to report)...

 

[11redrex]

Hope you said obrigado

 

[lacroupade]

Borrox.

Garage has been great, not charging me for two hours+ spent on diagnosis but they didn't want to waste my money on labour costs.......the boss has now driven it extensively, and after me explaining to him how the T2 suffers badly from tranny windup in the dry, has eliminated the usual suspects and potentially narrowed it down to the transfer box <groan> which is gonna be another big expense to rectify FFS :doh

Just to remind people, in case there are any more suggestions, symptoms are:

1. Nothing untoward in 2WD.

2. A low frequency whining/moaning in 4WD that increases with vehicle speed......sounds like its coming from front left.

3. Noise is worse under strain but vanishes completely on very slippery surfaces.....e.g. it will be howling at 45mph on a wet road, but soon as you hit snow, silence....!

It all sounded like a bearing but its such an odd phenomenon that its really difficult to pin down......so at this point its gonna be 'run it til it breaks' (that or sell it :naughty.

Meantime though I might look at a scrapper for a late tfr box but if anyone has any other alternate diagnosis.....?? (Remember its a MkIV with fixed hubs).

Cheers

 

[kbekl]

that dont sound like a transferbox problem

more like a diff one all oil is new i guess

 

[lacroupade]

that dont sound like a transferbox problem

more like a diff one all oil is new i guess

well oddly enough I'm waiting a call back to check :augie

 

[kbekl]

disconect the front prop stick it in 4wd and see if you can apply some strain to the prop and see if you can recreate the sound

does it do it under 10mph or not ?

if you hit snow and it has gone this to me would mean that the tyres/wheels are causing it. have you had the off set checked or used a second set of wheels on when did it start doing it

as you would still get the noise if it was something like the transfer box as it has to work as hard or in some cases harder

have you tried it in mud ? an is it the same

 

[lacroupade]

disconect the front prop stick it in 4wd and see if you can apply some strain to the prop and see if you can recreate the sound needs to be doing 30mph plus.....

does it do it under 10mph or not ? nope

if you hit snow and it has gone this to me would mean that the tyres/wheels are causing it. have you had the off set checked or used a second set of wheels on when did it start doing it no same old tyres.....and TBH the noise is too loud for it to be just tyres I think.

as you would still get the noise if it was something like the transfer box as it has to work as hard or in some cases harder

have you tried it in mud ? No - same probs as above, only kicks in around 25-30mph and I suspect would behave same as on snow, i.e. no noise... an is it the same

see above....thanks for the suggestions, everything helps....:thumb2

 

[lacroupade]

ref the "goes away on snow" thing, I am assuming that the slight slippage, even in 4WD is enough to take the strain off whatever is causing it....

 

[kbekl]

it makes it easier for the tyres to slip and not wind up but the forses are pritty much the same from the transferbox as it will try and drive the wheels

idea have it at a rolling test garage with a pit all wheels on a roller some rollers have adjustable friction some one under it or a mic and see where the noise is comming from

it could be the caster angle which is causing it