coolent leak !? - Page 6

SD1too · 12th February 2018, 19:09

Quote:

Originally Posted by Mgaz

.. so if the demist test showed no low speed, and the paper clip test showed medium speed was okay.. how do I test the highest speed?

According to your evidence your motor won't be running at medium speed, you will get low speed because one +ve brush is out of service. High speed demands two +ve brushes and two -ve brushes but your motor cannot provide that so high speed will not be available to you. You cannot easily test it, but there is no point anyway. You need to stop testing and start repairing!

Quote:

Originally Posted by T-Cut

You could also disconnect the coolant sensor connection. This will (should) trip on the fan at maximum speed.

Not on a 3 speed system. It triggers medium speed.

Simon

Mgaz · 15th February 2018, 22:28

[QUOTE=Arctic;2593473]

Quote:

]

Hi Gareth.
You would have initiated the high speed, as we know your low & medium speed are not working, I have replied to your email and am trying to sort out a day for you asap, I also have lots of Viton coolant O-rings FOC as these are fitted to every coolant cap on members cars that come to the nano meets

Arctic

well.. A small road trip today and a big thank you to Arctic for fitting a refurbished 2 speed fan to my ZT .

Cheers! Was good to meet you btw!

Arctic · 16th February 2018, 10:13

Hi Gareth.
After you left and i cleaned up i managed to open your fan motor, as you can see from the photo's below the low speed brush had worn down so much that it would have hardly been touch commutator.

Four wire 3 speed V6

1

2

Metal lid/cover removed brush off debris.

3

Remove the brush holding disc

4

Turn over the disc to reveal the brush holders.

5

I then removed the socket i use to keep brushes in place.

6

You can see from this photo that the low speed is worn right down and the medium as also been worn down which is what happens 95% of the time, i have seen both these brushes worn down so much that it as damaged the commutator

7

High speed as been invoked at sometime as they to are worn.

8

Commutator is not in bad shape so will come in useful

9

There you have it now you know why your fan was not working on low speed

10

Your two wire 2 speed gold resistor fan that you now have fitted works perfect reaches 100, then low speed kicks in brings it down to 95 as it should, which as you know we checked a few times.

Don't forget to sort out those Vis motors contact Mr Vis (stocktake) he will get you sorted out then you will know how your car runs properly

cheers Arctic.

https://the75andztclub.co.uk/forum/p...o=newpm&u=1623

Mgaz · 17th February 2018, 07:50

Cheers again Arctic.. And thanks to everybody else who have given their input . I've one less thing to be paranoid about now.

it's much appreciated .

16th February 2018, 10:13	#53
Arctic Give to Learn Freelander 2 Join Date: Aug 2010 Location: West Midlands Posts: 18,795 Thanks: 1,155 Thanked 6,407 Times in 3,874 Posts	Hi Gareth. After you left and i cleaned up i managed to open your fan motor, as you can see from the photo's below the low speed brush had worn down so much that it would have hardly been touch commutator. Four wire 3 speed V6 1 2 Metal lid/cover removed brush off debris. 3 Remove the brush holding disc 4 Turn over the disc to reveal the brush holders. 5 I then removed the socket i use to keep brushes in place. 6 You can see from this photo that the low speed is worn right down and the medium as also been worn down which is what happens 95% of the time, i have seen both these brushes worn down so much that it as damaged the commutator 7 High speed as been invoked at sometime as they to are worn. 8 Commutator is not in bad shape so will come in useful 9 There you have it now you know why your fan was not working on low speed 10 Your two wire 2 speed gold resistor fan that you now have fitted works perfect reaches 100, then low speed kicks in brings it down to 95 as it should, which as you know we checked a few times. Don't forget to sort out those Vis motors contact Mr Vis (stocktake) he will get you sorted out then you will know how your car runs properly cheers Arctic. https://the75andztclub.co.uk/forum/p...o=newpm&u=1623 __________________ Arctic Givology Learn to Give Everything is Achievable ad altiora tendo. Check out our Nano meet dates http://www.midlandsnanomeets.co.uk/ http://www.the75andztclub.co.uk/index.php?thepage=howto " You do the work , we supply the expertise "

17th February 2018, 07:50	#54
Mgaz Gets stuck in MG ZT190, MG ZS TD, MGF VVC, R200 TD bubble, Austin A35 Join Date: May 2017 Location: shrewsbury Posts: 648 Thanks: 530 Thanked 82 Times in 56 Posts	Cheers again Arctic.. And thanks to everybody else who have given their input . I've one less thing to be paranoid about now. it's much appreciated . __________________ They say you should never meet your Idols. Well.... you know that car you always wanted? https://www.youtube.com/channel/UCGx...zZeAsYRU9aZu-A ^Be kind, Subscribe^ (MGR videos )