Alternator issue ?

genpk · 3rd July 2018, 05:13

Today my 2004 diesel rover 75 started flashing “charging fault” on the message screen.
Disappears when reving the engine, comes back at idle.
Has 12 volts across the battery terminals.
Seems the ternator is the culprit ?
Im wondering if my 2004 facelift car is a 3 pin or 2 pin alternator as i want to get a bush and regulator kit from dmgr.
Ive got a secondhand one coming from east which ill fit , but want to re furb the old one out of the car as a spare.

tourer82 · 3rd July 2018, 06:44

You may well find that what you need to refurb are the slip rings. I replaced my regulator and brushes in situ and got nowhere. When I got the alternator off the car I discovered that there were deep groves in the slip rings that were causing the fluctuating voltage. I've got it lying around somewhere so I'll see if I can find it and post a picture.

genpk · 3rd July 2018, 08:53

Ive got a tested second hand one coming from a breaker but would have preferred a new one but over here they dont seem to exist.
I wonder if its the same alternator thats on the landrover td4 ?
Not sure if i should order the kit from dmgr and refurb the bushes and diode pack
on the second hand one or just get it put in and see how long it lasts.
Appears a bit of a pig of a job to do!!!
Guess i could pull the old one apart, if the slip rings are ok , refurb that one!!
Still none the wiser as to if its a 3 pin or 2 pin alternator.
Seems later diesel cars might have had the 2 pin version but not sure!!

genpk · 3rd July 2018, 13:23

After a bit of digging found the following info re diesel alternators.
Appears no matter if the alternator is a 3 pin or a 2 pin, all diesels only use 2 of the pins.
Appears some listings for Landrover td4 alternators also list Rover 75 as well.
These appear to be100 amp units.

DMGRS · 3rd July 2018, 14:50

The car only uses 2 pins, but the alternators are physically different if they're a 2 or 3 pin version.

Might be worth changing the brush pack while it's off - new brushes should extend the lifetime a fair bit.

genpk · 3rd July 2018, 15:20

Quote:

Originally Posted by DMGRS

The car only uses 2 pins, but the alternators are physically different if they're a 2 or 3 pin version.

Might be worth changing the brush pack while it's off - new brushes should extend the lifetime a fair bit.

I intend to buy the regulator brush kit from you guys but still not sure which one my 2004 diesel takes as ive not taken the alternator out yet.

Anyone confirm the if the alternator for a rover 75 diesel is the same as in the landrover freelander td4.
If so we do have these over here!!

4th July 2018, 10:59

Quote:

Originally Posted by genpk

Today my 2004 diesel rover 75 started flashing “charging fault” on the message screen.
Disappears when reving the engine, comes back at idle.
Has 12 volts across the battery terminals.
Seems the ternator is the culprit ?
Im wondering if my 2004 facelift car is a 3 pin or 2 pin alternator as i want to get a bush and regulator kit from dmgr.
Ive got a secondhand one coming from east which ill fit , but want to re furb the old one out of the car as a spare.

clean the bushes before spending the money on a new one

Snagger · 4th July 2018, 17:43

For things diesel alternator related click the links in my signature .

Snagger.

genpk · 4th July 2018, 19:35

Ill wait for the second hand one to arrive, check out that one and buy the correct brush regulator pack before fitting it.
I degreased, washed the one in the car.
The charging fault symbol has stopped flashing on and off now but ive now just got a small battery light on constantly on the dash so assume the alternatori is fully gone ?
Suppose its done 187,000 km so cant realy complain.
I guess its going to depend on how good the slip rings are in both units.
Over here new replacements are $700 aud (if you can find any)but landrover ones appear alot cheaper, hence my question if the td4 ones fit!!
Seen a few out of germany mentioning both Rover 75/ landrover freelander td4
on their description.
I suspect given my car is a 2004 facelift it may be a 2 pin unit but as the weather has been bad havnt had a look.Not much room to see anything with oil pump so close

Snagger · 4th July 2018, 21:56

See if you can source any of the alternatives in Oz from the list accompanying this R 75 alternator, which is the correct one for you car not oem
Double check with your supplier obviously.

http://startandcharge.co.uk/alt840-alternator.html

https://www.the75andztclub.co.uk/for...56&postcount=3

Snagger

3rd July 2018, 05:13	#1
genpk Posted a thing or two Rover 75 Saloon MGZT Join Date: Jul 2012 Location: Perth, AUSTRALIA Posts: 1,662 Thanks: 3 Thanked 461 Times in 299 Posts	Alternator issue ? Today my 2004 diesel rover 75 started flashing “charging fault” on the message screen. Disappears when reving the engine, comes back at idle. Has 12 volts across the battery terminals. Seems the ternator is the culprit ? Im wondering if my 2004 facelift car is a 3 pin or 2 pin alternator as i want to get a bush and regulator kit from dmgr. Ive got a secondhand one coming from east which ill fit , but want to re furb the old one out of the car as a spare.

3rd July 2018, 08:53	#3
genpk Posted a thing or two Rover 75 Saloon MGZT Join Date: Jul 2012 Location: Perth, AUSTRALIA Posts: 1,662 Thanks: 3 Thanked 461 Times in 299 Posts	Ive got a tested second hand one coming from a breaker but would have preferred a new one but over here they dont seem to exist. I wonder if its the same alternator thats on the landrover td4 ? Not sure if i should order the kit from dmgr and refurb the bushes and diode pack on the second hand one or just get it put in and see how long it lasts. Appears a bit of a pig of a job to do!!! Guess i could pull the old one apart, if the slip rings are ok , refurb that one!! Still none the wiser as to if its a 3 pin or 2 pin alternator. Seems later diesel cars might have had the 2 pin version but not sure!! Last edited by genpk; 3rd July 2018 at 09:45..

3rd July 2018, 14:50	#5
DMGRS Discount MG Rover Spares Rover 75 CDTi, 2x MG ZS180 Join Date: Jun 2011 Location: Hythe, Southampton Posts: 11,320 Thanks: 456 Thanked 3,377 Times in 2,027 Posts	The car only uses 2 pins, but the alternators are physically different if they're a 2 or 3 pin version. Might be worth changing the brush pack while it's off - new brushes should extend the lifetime a fair bit. __________________ Your trusted MG Rover specialist! Tel: 02380 001133 / Email: [email protected] We now have a 'chat' function on our site for even quicker replies. Give it a try! Remember - discount code FORUM5 for 5% off

4th July 2018, 17:43	#8
Snagger Gets stuck in ROVER 75 CDT CLUB SE 02 Join Date: Aug 2009 Location: Kent Posts: 658 Thanks: 30 Thanked 141 Times in 87 Posts	For things diesel alternator related click the links in my signature . Snagger. __________________ How to remove CDT alternator from top & side :- http://www.the75andztclub.co.uk/foru...d.php?t=199608 Battery charge light problems on a diesel ? http://www.the75andztclub.co.uk/foru...3&postcount=64 Diesel charging FBH voltage supply diagram http://www.the75andztclub.co.uk/foru...ght=cdt+charge How to identify voltage regulator type diesel http://www.the75andztclub.co.uk/foru...56&postcount=3

4th July 2018, 21:56	#10
Snagger Gets stuck in ROVER 75 CDT CLUB SE 02 Join Date: Aug 2009 Location: Kent Posts: 658 Thanks: 30 Thanked 141 Times in 87 Posts	See if you can source any of the alternatives in Oz from the list accompanying this R 75 alternator, which is the correct one for you car not oem Double check with your supplier obviously. http://startandcharge.co.uk/alt840-alternator.html https://www.the75andztclub.co.uk/for...56&postcount=3 Snagger __________________ How to remove CDT alternator from top & side :- http://www.the75andztclub.co.uk/foru...d.php?t=199608 Battery charge light problems on a diesel ? http://www.the75andztclub.co.uk/foru...3&postcount=64 Diesel charging FBH voltage supply diagram http://www.the75andztclub.co.uk/foru...ght=cdt+charge How to identify voltage regulator type diesel http://www.the75andztclub.co.uk/foru...56&postcount=3 Last edited by Snagger; 4th July 2018 at 22:04..

3rd July 2018, 06:44	#2
tourer82 Regular poster ZT 190 SE Join Date: Feb 2016 Location: Parbold Posts: 81 Thanks: 38 Thanked 20 Times in 12 Posts	You may well find that what you need to refurb are the slip rings. I replaced my regulator and brushes in situ and got nowhere. When I got the alternator off the car I discovered that there were deep groves in the slip rings that were causing the fluctuating voltage. I've got it lying around somewhere so I'll see if I can find it and post a picture.

3rd July 2018, 13:23	#4
genpk Posted a thing or two Rover 75 Saloon MGZT Join Date: Jul 2012 Location: Perth, AUSTRALIA Posts: 1,662 Thanks: 3 Thanked 461 Times in 299 Posts	After a bit of digging found the following info re diesel alternators. Appears no matter if the alternator is a 3 pin or a 2 pin, all diesels only use 2 of the pins. Appears some listings for Landrover td4 alternators also list Rover 75 as well. These appear to be100 amp units.

4th July 2018, 19:35	#9
genpk Posted a thing or two Rover 75 Saloon MGZT Join Date: Jul 2012 Location: Perth, AUSTRALIA Posts: 1,662 Thanks: 3 Thanked 461 Times in 299 Posts	Ill wait for the second hand one to arrive, check out that one and buy the correct brush regulator pack before fitting it. I degreased, washed the one in the car. The charging fault symbol has stopped flashing on and off now but ive now just got a small battery light on constantly on the dash so assume the alternatori is fully gone ? Suppose its done 187,000 km so cant realy complain. I guess its going to depend on how good the slip rings are in both units. Over here new replacements are $700 aud (if you can find any)but landrover ones appear alot cheaper, hence my question if the td4 ones fit!! Seen a few out of germany mentioning both Rover 75/ landrover freelander td4 on their description. I suspect given my car is a 2004 facelift it may be a 2 pin unit but as the weather has been bad havnt had a look.Not much room to see anything with oil pump so close