|
||
|
6th January 2020, 14:17 | #1 |
Posted a thing or two
rover 75 cdti(rhd), MG ZR(lhd), MG TF(lhd), MG TF(rhd), mini mpi (lhd), Renault megane III (awful) Join Date: Mar 2014
Location: East of France
Posts: 1,278
Thanks: 124
Thanked 114 Times in 93 Posts
|
Alternator regulator
Hi all,
how do I tell which regulator I need for my 2005 75 CDTi without taking things apart ? I see they exist with 2 or 3 pins. Thanks Pete. |
6th January 2020, 14:56 | #2 | |
Avid contributor
Rover 75 Join Date: May 2015
Location: Leeds
Posts: 135
Thanks: 0
Thanked 17 Times in 11 Posts
|
Quote:
Finding out isn't too difficult, just unplug the plug for the socket in the back of the alternator. You should be able to reach it without taking anything off. Then count the number of pins. |
|
7th January 2020, 09:55 | #3 |
This is my second home
R75 Saloon. Join Date: Feb 2009
Location: France/or Devon.
Posts: 14,003
Thanks: 3,851
Thanked 2,167 Times in 1,816 Posts
|
Just curious but why do you need to change the regulator ??
Is the alternator over charging ?? |
7th January 2020, 15:03 | #4 |
Posted a thing or two
rover 75 cdti(rhd), MG ZR(lhd), MG TF(lhd), MG TF(rhd), mini mpi (lhd), Renault megane III (awful) Join Date: Mar 2014
Location: East of France
Posts: 1,278
Thanks: 124
Thanked 114 Times in 93 Posts
|
I have 14.6 volts with engine running.
Something is discharging my battery after a week or so. Brand new BOSCH battery, it's currently off the car, has been for over a month and is still at 12.8 volts. |
7th January 2020, 18:23 | #5 |
This is my second home
R75 Saloon. Join Date: Feb 2009
Location: France/or Devon.
Posts: 14,003
Thanks: 3,851
Thanked 2,167 Times in 1,816 Posts
|
It's not the regulator then.-There are a variety of things that can slowly discharge your battery however.
Lots of them have been posted on the forum and a search might be of help to you. |
7th January 2020, 18:50 | #6 |
Posted a thing or two
rover 75 cdti(rhd), MG ZR(lhd), MG TF(lhd), MG TF(rhd), mini mpi (lhd), Renault megane III (awful) Join Date: Mar 2014
Location: East of France
Posts: 1,278
Thanks: 124
Thanked 114 Times in 93 Posts
|
The thing is, the car is not drawing more than 20 miliampes when locked. I think the battery is not being charged and as I use the car the battery gradually drains.
|
8th January 2020, 11:49 | #7 |
This is my second home
Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009
Location: Hampshire
Posts: 11,547
Thanks: 3,470
Thanked 3,119 Times in 2,247 Posts
|
I'd agree with your figure Pete - 20mA sounds about right once everything has gone to bye byes.
Have you got a fuel burning heater? With a faulty circuit board they can start sporadically and drain the battery. |
8th January 2020, 13:52 | #8 |
Posted a thing or two
rover 75 cdti(rhd), MG ZR(lhd), MG TF(lhd), MG TF(rhd), mini mpi (lhd), Renault megane III (awful) Join Date: Mar 2014
Location: East of France
Posts: 1,278
Thanks: 124
Thanked 114 Times in 93 Posts
|
Hi Mike,
No FBH on this car. Can an alternator pump out 14.6 volts and NOT charge the battery ??? Pete. |
8th January 2020, 14:47 | #9 | |
Premium Trader
Rover 75 Join Date: Nov 2010
Location: Devon
Posts: 33,764
Thanks: 8,837
Thanked 14,831 Times in 8,030 Posts
|
Quote:
I’d suspect a dead cell in the battery, the live feed from the alternator runs directly to the battery via a join on the starter motor so not much chance of anything going amiss in that area. Sent from my iPhone using Tapatalk
__________________
Lest we forget..
|
|
8th January 2020, 15:56 | #10 |
Posted a thing or two
rover 75 cdti(rhd), MG ZR(lhd), MG TF(lhd), MG TF(rhd), mini mpi (lhd), Renault megane III (awful) Join Date: Mar 2014
Location: East of France
Posts: 1,278
Thanks: 124
Thanked 114 Times in 93 Posts
|
It's not the battery. I thought it was too, that's why I have a brand new one. Had the same problem with the old one
|
|
|