VCU Repair

mick 1986 said:

That's probably from them ####ing about with the insides, not actually from everyday use.

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it is from what i understand

jamesmartin said:

it is from what i understand

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What do you mean mate? Not transmitting drive from normal use or from from some chimp ####ing about with the internals?

mick 1986 said:

What do you mean mate? Not transmitting drive from normal use or from from some chimp ####ing about with the internals?

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sorry i meant i think they deliberately bugger them up so they are no longer seized or transmit drive either

jamesmartin said:

sorry i meant i think they deliberately bugger them up so they are no longer seized or transmit drive either

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That's the impression most of us get from them.

jamesmartin said:

has anyone ever found one with no drive at all due to buggerd vc?

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Yes

Mondo

hence the term "Mondo mode" meaning FWD only, however it has been used primarily to describe the removal of the VCU which has the same effect.

I understand that Freelander spares remove all the Silicone fluid to achieve the same thing.

mondo or mondeo?

Mondo - usually called Mondeo tho

http://www.landyzone.co.uk/lz/f9/2-wheel-bloody-drive-again-35052.html

thems were the days ;o

Brack said:

Brakes are designed to be fully servicable whereas the vcu is a sealed unit therefore not designed to be servicable - so tamper with it at your own risk - best left to the experts who would be fully responsible if their reconditioned vcu failed and caused an accident.

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What kind of accident would that be then?

bukko said:

What kind of accident would that be then?

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How do you interpret.... " He said that if you went above an 86% fill then you would have the VC activating on the highway during normal driving and a dangerous situation would exist" ?? quoted from the link below

Syncro Vanagon Technica

Brack said:

How do you interpret.... " He said that if you went above an 86% fill then you would have the VC activating on the highway during normal driving and a dangerous situation would exist" ?? quoted from the link below

Syncro Vanagon Technica

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causing dangerous wind up in the transmission and blowing the transferbox or diff up

Freelaner said:

causing dangerous wind up in the transmission and blowing the transferbox or diff up

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Yep... enough for me to leave em well alone.

Brack said:

Yep... enough for me to leave em well alone.

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for the sake of £2-300 speak to Austin

Brack said:

How do you interpret.... " He said that if you went above an 86% fill then you would have the VC activating on the highway during normal driving and a dangerous situation would exist" ?? quoted from the link below

Syncro Vanagon Technica

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read it again!!!!!
It was stated that ...
"The percentage of air in the viscous couling is critical, and the percentage is almost always a low of 80% and a high of 86%. ...........He said the probable range for our vehicles is 84% to 86% air".

Thats a lot of air, and very little liquid

The Mad Hat Man said:

read it again!!!!!
It was stated that ...
"The percentage of air in the viscous couling is critical, and the percentage is almost always a low of 80% and a high of 86%. ...........He said the probable range for our vehicles is 84% to 86% air".

Thats a lot of air, and very little liquid

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I dont have to read it again, I was answering a quote from bukko - If you tamper with a vcu that is not designed to be tampered with and you get it wrong then as your link expert says a dangerous situation can occur - in my honest opinion vcu's are best left for the experts

Brack said:

I dont have to read it again, I was answering a quote from bukko - If you tamper with a vcu that is not designed to be tampered with and you get it wrong then as your link expert says a dangerous situation can occur - in my honest opinion vcu's are best left for the experts

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yu are entitled to your opinion.

The Mad Hat Man said:

read it again!!!!!
It was stated that ...
"The percentage of air in the viscous couling is critical, and the percentage is almost always a low of 80% and a high of 86%. ...........He said the probable range for our vehicles is 84% to 86% air".

Thats a lot of air, and very little liquid

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I'm not sure that's correct!! As he also said for an off road vehicle an 86% fill would be better. Then he mentions a 14% air space which is all rather contradictory!!
14% air sounds rite to me with my limited knowledge of a VC

I agree it doesn't sound correct. Maybe Austen can confirm?

TBH why even consider a DIY repair on a buggered VCU, it's not exactly an expensive item to replace in comparison to the cost incurred by IRD failure if you got it wrong is it?

BOOMER said:

TBH why even consider a DIY repair on a buggered VCU, it's not exactly an expensive item to replace in comparison to the cost incurred by IRD failure if you got it wrong is it?

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Agreed treat the VCU as a service part and change it at 60K or 5 years and kiss good by to all the worry not changing it gives!!

If someone were to come up with a test for the vcu then we could all do the test on our vcu's, collate the results and be able to predict when failure occurs if a pattern develops.