Rear End Shudder when pulling away

[wormey]

I have had Freda for 3 months now, she is still under warranty from a reputable dealer. Freda is a 4x4 2.5 diesel Auto with no LSD.

Recently under hard aceleration from standing (Straight line ) the back end shudders for a short while and disappears.

I had to take Freda back to the garage last week for unrelated warranty work and I mentioned it then.

I was told that it was normal, the symptoms are now getting slightly worse.

Should a Bongo/Freda shudder under aceleration, I love my Freda and want her just right.

Daz

[dandywarhol]

Not normal. Check tyres are same depths of tread and correct size. Could be the start of a viscous coupling fault.

[wormey]

Thanks for the replies,

New tyres all around same size, Last night I jacked up the back diff to have both wheels off the ground.

This morning no shudder at all, I take it I had wind up in the 4x4 system??.

Daz

[haydn callow]

I get a shuddering from the back but only when towing....can somone explain what this "windup" is ??

[francophile1947]

This morning no shudder at all, I take it I had wind up in the 4x4 system??.

Daz

Didn't think you got any wind up with same size tyres all round, unless a wheel was skidding

[missfixit70]

Or as Dandy says it could be the first signs of VC problems?

[dandywarhol]

This morning no shudder at all, I take it I had wind up in the 4x4 system??.

Daz

Didn't think you got any wind up with same size tyres all round, unless a wheel was skidding

You'll get windup if the VC's faulty John as there's no guarantee all the tyres are EXACTLY the same circumference

[dandywarhol]

I get a shuddering from the back but only when towing....can somone explain what this "windup" is ??

Coolant alarms are a waste of time!




















There's a windup

WIND UP

[francophile1947]

This morning no shudder at all, I take it I had wind up in the 4x4 system??.

Daz

Didn't think you got any wind up with same size tyres all round, unless a wheel was skidding

You'll get windup if the VC's faulty John as there's no guarantee all the tyres are EXACTLY the same circumference

Thanks Dandy I guess it must be the VC as it says new tyres all round, so they should be the same size (unless they're faulty )

[wormey]

I have contacted the company and it's booked in for next week.

Could I have caused any long term damage to the VC, driven it for about 2000 miles. Where is the VC and how do I know if they've changed/repaired it.


Daz

[dandywarhol]

Difficult to say - it's the big lump of casing on the back of the gearbox and it can't be overhauled (as far as I know)

Interesting explanation here...........

http://www.excite-webtl.jp/world/englis ... N&wb_dis=2

[scanner]

and how do I know if they've changed/repaired it.

Put a great big unmissable mark on it with a file or something similar.

As DW says they aren't really repairable, so if it still has the same mark on it afterwards it hasn't been changed.

[dandywarhol]

http://www.lushprojects.com/bongoparts/ ... R21121.gif

[stilldesperate]

http://www.excite-webtl.jp/world/englis ... N&wb_dis=2

Awesome link, Dandy, love the translation of the AFT sleeping arrangements!

-- Will have to try it on the Japanese girls at work

SD

[wormey]

Will this mean that the whole gearbox may have to be changed, or just the VC lump on the end replaced with a new one.

Although under warranty , how much and how long do they last.

Thanks

Daz