ccoaton
New Member
- Posts
- 51
- Location
- Northern Ireland
Trying to Buy IRD online..Got this from seller..Recomends I buy VCU aswell..
Tipex tested my VCU and it worked fine..
Very confused now,don't know what to do,..Any advice please
The tipex test is an absolute myth. I have no idea who came up with this test and why this useless test is still banded around on forums etc. A VCU never totally seizes solid, if it did the car would not actually move as the car would be locked up solid. A lot of people paint the tipex on the wrong bit so it looks like it hasnt moved, so maybe thats why people still believe this test is valid. VCUs go tight and do not slip as easily as they should, its all about how much torque is transmitted through them. We have a test rig that measures this, hence how we can tell if an old VCU is working within tolerances. A quick test is to see how the car feels on complete lock and driving in reverse and dipping the clutch, if the car slows down as if the brakes are on then the VCU is totally shot. Trouble is unless you know how a good one feels its impossible to say if its OK. With you also saying the rear diff mount was damaged, I would definetly say the VCU is gone as this is another tell tale sign of a shot VCU. We will not give a warranty on the IRD unless we have tested your VCU or you purchase one from us. What ever you decide, I strongly suggest you change the VCU. A VCU should be treated like a cam belt and changed ever 60k miles, although I have seen knackered ones at 30k on heavily used cars.
Thankyou,....Colin
Tipex tested my VCU and it worked fine..
Very confused now,don't know what to do,..Any advice please
The tipex test is an absolute myth. I have no idea who came up with this test and why this useless test is still banded around on forums etc. A VCU never totally seizes solid, if it did the car would not actually move as the car would be locked up solid. A lot of people paint the tipex on the wrong bit so it looks like it hasnt moved, so maybe thats why people still believe this test is valid. VCUs go tight and do not slip as easily as they should, its all about how much torque is transmitted through them. We have a test rig that measures this, hence how we can tell if an old VCU is working within tolerances. A quick test is to see how the car feels on complete lock and driving in reverse and dipping the clutch, if the car slows down as if the brakes are on then the VCU is totally shot. Trouble is unless you know how a good one feels its impossible to say if its OK. With you also saying the rear diff mount was damaged, I would definetly say the VCU is gone as this is another tell tale sign of a shot VCU. We will not give a warranty on the IRD unless we have tested your VCU or you purchase one from us. What ever you decide, I strongly suggest you change the VCU. A VCU should be treated like a cam belt and changed ever 60k miles, although I have seen knackered ones at 30k on heavily used cars.
Thankyou,....Colin