jamesmartin
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how was that ?
VCU Torque test results
- Thread starter The Mad Hat Man
- Start date
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whilst off the car, he put two stilsons on it and tried to turn it.
if it was hard to turn...it was knackered
if it was easy to turn...it wasn't doing owt
middle....= just right
their test not mine
i think the proof of the pudding is in the eating
i.e get it slipping on gravel, mud or snow and see if it works
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No.
Linky or scanned copy?
Linky or scanned copy?
Diesel Do
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That'd work but it's down to experience! So not much use to the man in the street. Bell bench test them and I got the impression that they were slightly more sophisticated but did essentially that! So my theory is if they can be bench tested that way I don't really see why Hippos wheel in the air method shouldn't be a pretty good indication of condition! The only difference IMO is the torque has to go thru a diff so shouldnt affect it too much. I know for a fact it shows a difference between good and fubar! So I reckon it should work its a pain in the arse trying to do it and collect measurements when everything that everyone has is different! And me socket kept falling off that's why I went more on the way it drove which worked for me as the new one is a revaluation!
if they can be bench tested that way I don't really see why Hippos wheel in the air method shouldn't be a pretty good indication of condition! The only difference IMO is the torque has to go thru a diff so shouldnt affect it too much. I know for a fact it shows a difference between good and fubar! So I reckon it should work its a pain in the arse trying to do it and collect measurements when everything that everyone has is different! And me socket kept falling off that's why I went more on the way it drove which worked for me as the new one is a revaluation!i've not tried Hippos method but I have no reason to believe it doesn't give anything other than an accurate measure of whats going on.That'd work but it's down to experience! So not much use to the man in the street. Bell bench test them and I got the impression that they were slightly more sophisticated but did essentially that! So my theory is
mine was replaced soon after I bought it, so never needed to test it.
Diesel Do
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I had a go with my knackered one but got the hump (short attention span) turned the wheel with a two foot bar. It was darned stiff. Did the same with the Bell one and it turned a lot easier still stiff tho. But for me it means I now have an idea as to what to look for. But for joe public it's the same as using stilsons they ain't got a clue what stiff is! So I personally think it should work its just difficult to regulate and collect the figures.
jamesmartin
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one wheel up and torque wrench is simple and more likely to get done .and you should check regulary
Diesel Do
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Must try that! I noticed mine getting worse, but I suppose most aren't as sensitive as me
NeilTD4
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I shall be having a go at the torque wrench test next time I give the FL a service, which won't be too long.
I feel better about the VCU lurking under the floor of mine. Well for the time being anyway
That's the benefit of a forum such as this and thank you to those that have helped this newcomer with this bit of FL ownership
I feel better about the VCU lurking under the floor of mine. Well for the time being anyway
That's the benefit of a forum such as this and thank you to those that have helped this newcomer with this bit of FL ownership
Hippo
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Every time somefink falls oft.
Diesel Do
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Hippo
Lord Hippo
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I agree bell does the test on the bench. Their web site doesn't quite support the testing we're trying to do, but they do use the same method. Proof ere of the bench test: Freelander VCU test - YouTubeThat'd work but it's down to experience! So not much use to the man in the street. Bell bench test them and I got the impression that they were slightly more sophisticated but did essentially that! So my theory is
What we're doing here is measuring applied force against time, with gravity as our datum.
The "one wheel up test" is essentially the same thing, as you say, with the torque applied to the vcu going through the rear diff. This changes the amount of torque applied due to the rear diff ratio, but if we know the rear diff ratio and perform this test we could continue to look for a trend. I have also tested my vcu on a bench. Results soon with video proof to support them.
All,
Do we think it's time for a new fred explaining in simple terms what we're doing, with opportunity for results to be posted? this one puts peeps off due to the arguments early on.
Diesel Do
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Probably help! I think the torque wrench test may be worth a try as it wont matter on the size of it or what you Hang on it it's far quicker and easier too? I can give it a go on me new one
jamesmartin
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i test customers during service which is usually once or twice a year but with my disco that ive just scrapped once a month,but i know what a good one feels like ,torque wrench test is simple
Hippo
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Bar and weights is better. Play with the wrench idea and you'll see why.
Also have a feel of yer vcu after a trip to see how warm it is. Measure temp if you can.
