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5th April 2020, 13:28 | #11 | |
I really should get out more.......
Rover 75 Saloon Join Date: Jul 2011
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Quote:
Stocktake who has kindly answered your questions also provides a VIS renovation service. His renovated units incorporate many improvements over the original design and will probably outlive your car. Regards |
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7th April 2020, 17:38 | #12 |
Gets stuck in
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When VIS motors are operated in situ the load of the flap or butterflies reduces the speed of the motor and prevents overrun when the micro switch switches the motor off at the end of travel. If you operate the VIS motors off the car they run so fast that they reach the end of travel and operate the micro switch but they are spinning so fast the cam rotates a bit more than it should and switches the end of travel micro switch back on and the motor carries on spinning. Many years ago I repaired one and operated it off the car and the above happened. I remember having to strip the unit down again to rectify it but I can't remember what I did to rectify it. If I have to run them off the car now I apply some load to the output peg/square hole with my hand to prevent overrun.
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7th April 2020, 18:16 | #13 | |
Vis Whiz
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Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident |
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9th April 2020, 12:58 | #14 |
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Rover 75 RJ Join Date: Apr 2020
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Hello.
I am sorry for my late reply but i'm working on this car on my spare time.( She had ALL the commun issues ) Thank you for the provided diagram. I checked again the microswitches and they work perfectly yet the motor spins without stopping. I think i will try to check the electrical conector but for now, i am satisfied with the way the engine idles and runs. It took time to make it idle propperly. Electrically, now i'm left with a high speed radiator fan error code. When i test the fan with my diagnose i can hear the relay clicking but the fan doesn' start. *The fan starts when the AC is on and requires the fan for cooling. I read that i have to remove the front bumper to see whats causing the problem there. Will do that. Someone wanted to scrap the car because he took it to many mechanics but still the car wasn't fixed. Here in Romania vag group cars are very popular but comun issues with vag group cars don't apply to rover cars so i understood why the car wasn' fixed. So i buyed the car (very cheap) from the guy and started working on it and then started to like it. Now it only has the issue with the cooling fan witch i will fix next week. Other than that everything works. Thank you. |
9th April 2020, 13:13 | #15 | |
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Quote:
Last edited by Cosmin161; 9th April 2020 at 13:18.. |
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9th April 2020, 13:36 | #16 |
Vis Whiz
Rover 75 2.5 auto Saloon Join Date: Jun 2007
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Hi Cosmin,
Thank you for coming back to us and I am sorry you cannot find the fault. Providing the wiring on the car is correct then it can only be the micro switch. You are correct not to let it stop you getting your car roadworthy, until you can find time to fix this simply leave the Vis motor unplugged. I have only ever come across this once and that was when the plug that should go to the lamda sensor was inadvertently plugged into the Vis as they were the same plug fitting!! When you are ready to look again at the Vis motor send me a message and I can tell you the colour of the wires that go to the Vis and what voltage they carry. That said a continuity test of the switches Open and closed) is a must to move forward. Good luck with the rest of the car.
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Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident |
9th April 2020, 13:52 | #17 |
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Can you please tell me where are these plugs located?
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9th April 2020, 14:20 | #18 |
Vis Whiz
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The plugs go to the sensors in the exhaust one of them is quite close to the vis motors at the back of the engine.
Just to make sure you have the correct plugs fitted to the Vis motors you should have the following colours on the plug. Power: 1. Orange/Yellow 2. Black 3. Blue/Yellow 4. Blue/Pink Balance: 1.Grey/Black 2. Blue/Orange 3. Black 4. Blue/Yellow
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Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident |
9th April 2020, 18:00 | #19 | |
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Quote:
i feel so dumb now ) but i would never thought that the o2 sensor could have the same plug as any other plug on the engine. NOW.. the power vis does this: With the cam of the gear between the microswitches if I plug in the cable the gear rotates and when it hits the microswitch it stops. But when I test it with the diagnose it doesen't rotate towards the other microswitch.. the balance motor does. |
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9th April 2020, 20:04 | #20 |
Vis Whiz
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Cosmin that's great news
Glad I could help. If your sure the switches are OK then sounds like a dry solder joint or the relay is fried on the Vis Part No: V23079A1003B301 Good luck with the rest of the car and most of all thanks for coming back to let us know. Edit, just had a thought, if when you plugged the Vis motor in it is possible the gear over rotates and the cam actually hits both microswitches and then it locks up and will not move as both switches are open. Usually the resistance of the brown arm in the manifold stops this over run. have a quick look
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Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident Last edited by stocktake; 9th April 2020 at 20:10.. |
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