Hi, all you knowledgeable folk on here !
Have any of you managed to fit a Mk2 alternator (the one with the push-on connector) to an early MGF (bolt-on wire)? Problem is, the later model has a two wire connector with the brown-yellow cable for the charge control lamp and a white-red one connected to the engine control unit. The older cars just have the brown-yellow wire so there’s nothing to connect the white-red wire to. Where does this go? Ground, 12v ignition … im lost.
Problem is, one of my cars has eaten its alternator (new just two years ago) and the only one left on the shelf is one out of a ZR. Have to fit it asap.
SOLVED! Mk2 Alternator in Mk1 car ?
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Because advice is honestly and freely given in this technical section, much of it will be amateur experienced based, so any information is given in good faith and is not guaranteed as correct.
Not many rules really, this board being aimed at technical issues, it shouldn't fall foul (hopefully) of some of the more personal issues that can affect forums.
Rule 1 - Is that you need to think very carefully before posting anything technical or asking anything technical relating to the security system of the car - See 'Security Issues' sticky for more info.
Rule 2 - We (MGF Register) do not support copyright infringement and therefore references to CD ROM, PDF versions or paper copies of the workshop manual (for instance) should not be posted on the forum. We don't want to get into trouble and we'd rather sell you a genuine hard copy through our Regalia shop anyway!
Because advice is honestly and freely given in this technical section, much of it will be amateur experienced based, so any information is given in good faith and is not guaranteed as correct.
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Mykel
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- Model of Car: MG TF Monogram
- Location: Schwalmtal, NRW, Germany
SOLVED! Mk2 Alternator in Mk1 car ?
Last edited by Mykel on Wed Feb 06, 2019 12:31 pm, edited 1 time in total.
MGTF:
2004 TF 135 in Monogram Spectre, black leather, RHD
MGZR:
2001 ZR 160 in Solar Red, LHD, LPG conv
Classic:
1972 MG Midget MkIII RWA in Blaze Red
MGF Register regional rep for Germany -- germany@mgfregister.org
2004 TF 135 in Monogram Spectre, black leather, RHD
MGZR:
2001 ZR 160 in Solar Red, LHD, LPG conv
Classic:
1972 MG Midget MkIII RWA in Blaze Red
MGF Register regional rep for Germany -- germany@mgfregister.org
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quick_spider
- Posts: 151
- Joined: Tue Mar 27, 2012 10:25 am
- MGF Register Region: Midlands
Re: URGENT! Mk2 Alternator in Mk1 car ?
From memory I think you can just leave it disconnected.
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Mykel
- Regional Rep
- Posts: 2759
- Joined: Thu Dec 30, 2010 8:13 pm
- MGF Register Region: Europe
- Model of Car: MG TF Monogram
- Location: Schwalmtal, NRW, Germany
Re: URGENT! Mk2 Alternator in Mk1 car ?
Thanks, will give it a try on Monday! 
MGTF:
2004 TF 135 in Monogram Spectre, black leather, RHD
MGZR:
2001 ZR 160 in Solar Red, LHD, LPG conv
Classic:
1972 MG Midget MkIII RWA in Blaze Red
MGF Register regional rep for Germany -- germany@mgfregister.org
2004 TF 135 in Monogram Spectre, black leather, RHD
MGZR:
2001 ZR 160 in Solar Red, LHD, LPG conv
Classic:
1972 MG Midget MkIII RWA in Blaze Red
MGF Register regional rep for Germany -- germany@mgfregister.org
-
Rob Bell
- Committee Member
- Posts: 14425
- Joined: Tue Oct 02, 2007 2:36 pm
- MGF Register Region: South East
- Model of Car: MGF 1.8i + MGF Shed!
Re: URGENT! Mk2 Alternator in Mk1 car ?
I think that wire probably controls the load of the alternator... I'll need to dig out a MY2000 wiring diagram!
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talkingcars
- Posts: 5766
- Joined: Tue Mar 09, 2010 10:44 pm
- MGF Register Region: South East
- Model of Car: mk1 VVC
- Location: West Sussex
- Contact:
Re: URGENT! Mk2 Alternator in Mk1 car ?
The wire to the ECU is used by the ECU to adapt the tickover to suit the load on the alternator, it can be left disconnected without affecting the alternator.
Home to black Alfa 159 3.2 V6 Q4, blue MGZR160, green MGF VVC and grey MGF 1.8i, and red MG Maestro T16.
MGF chatting on the Register and at http://www.the-t-bar.com
MGF chatting on the Register and at http://www.the-t-bar.com
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Mykel
- Regional Rep
- Posts: 2759
- Joined: Thu Dec 30, 2010 8:13 pm
- MGF Register Region: Europe
- Model of Car: MG TF Monogram
- Location: Schwalmtal, NRW, Germany
Re: URGENT! Mk2 Alternator in Mk1 car ?
Thanks, Rob & James, that’s exactly how I did it yesterday.
Just connected the brown-yellow wire to its equally coloured counterpart on a plug ripped out of an old ZR, and it works! Mind you, the main terminal bolt on a Mk2 alternator is bigger, though (M8 instead of M6) and the thick wire is a bit short, as the angle on the newer alternator is different. Had to cut open the eye on the cable to fit and stretch it a bit. Not a permanent fix, but it worked so far.
Just connected the brown-yellow wire to its equally coloured counterpart on a plug ripped out of an old ZR, and it works! Mind you, the main terminal bolt on a Mk2 alternator is bigger, though (M8 instead of M6) and the thick wire is a bit short, as the angle on the newer alternator is different. Had to cut open the eye on the cable to fit and stretch it a bit. Not a permanent fix, but it worked so far.
MGTF:
2004 TF 135 in Monogram Spectre, black leather, RHD
MGZR:
2001 ZR 160 in Solar Red, LHD, LPG conv
Classic:
1972 MG Midget MkIII RWA in Blaze Red
MGF Register regional rep for Germany -- germany@mgfregister.org
2004 TF 135 in Monogram Spectre, black leather, RHD
MGZR:
2001 ZR 160 in Solar Red, LHD, LPG conv
Classic:
1972 MG Midget MkIII RWA in Blaze Red
MGF Register regional rep for Germany -- germany@mgfregister.org
-
Rob Bell
- Committee Member
- Posts: 14425
- Joined: Tue Oct 02, 2007 2:36 pm
- MGF Register Region: South East
- Model of Car: MGF 1.8i + MGF Shed!
Re: SOLVED! Mk2 Alternator in Mk1 car ?
As a "get out of jail" fix, sounds perfect!
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Mykel
- Regional Rep
- Posts: 2759
- Joined: Thu Dec 30, 2010 8:13 pm
- MGF Register Region: Europe
- Model of Car: MG TF Monogram
- Location: Schwalmtal, NRW, Germany
Re: SOLVED! Mk2 Alternator in Mk1 car ?
Indeed it was, Rob! Especially with working Mk1 alternators becoming quite hard to find these days.
MGTF:
2004 TF 135 in Monogram Spectre, black leather, RHD
MGZR:
2001 ZR 160 in Solar Red, LHD, LPG conv
Classic:
1972 MG Midget MkIII RWA in Blaze Red
MGF Register regional rep for Germany -- germany@mgfregister.org
2004 TF 135 in Monogram Spectre, black leather, RHD
MGZR:
2001 ZR 160 in Solar Red, LHD, LPG conv
Classic:
1972 MG Midget MkIII RWA in Blaze Red
MGF Register regional rep for Germany -- germany@mgfregister.org
-
talkingcars
- Posts: 5766
- Joined: Tue Mar 09, 2010 10:44 pm
- MGF Register Region: South East
- Model of Car: mk1 VVC
- Location: West Sussex
- Contact:
Re: SOLVED! Mk2 Alternator in Mk1 car ?
When I was doing my subframe swap I nearly put in a mk2 alternator to pre-empt a swap to MEMS3 but I bought a complete MEMS3 160 engine instead, just need to fit that now......
Home to black Alfa 159 3.2 V6 Q4, blue MGZR160, green MGF VVC and grey MGF 1.8i, and red MG Maestro T16.
MGF chatting on the Register and at http://www.the-t-bar.com
MGF chatting on the Register and at http://www.the-t-bar.com
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Kasper
- Posts: 715
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- Model of Car: MGF vvc
- Location: Veghel / The Netherlands
Re: SOLVED! Mk2 Alternator in Mk1 car ?
Should have known that about a month ago.
They supplied a Mk2 so I had to change that one for a Mk1 and had to leave a "couple" of euro's too.
Whoo these Mk1 altenartors are expensive.....
They supplied a Mk2 so I had to change that one for a Mk1 and had to leave a "couple" of euro's too.
Whoo these Mk1 altenartors are expensive.....
MGFvvc - 90FVBG - charcoal - you might think it is original - (1996 nr:8204)
MGTF 120 - 57RNJ7 - BRG - every day is an MG day - (2005)
MGC CGT - SJ08DY - tartan red - 1985 restauration fairly original - (1968 nr: 4137)
http://www.MGF.be
MGTF 120 - 57RNJ7 - BRG - every day is an MG day - (2005)
MGC CGT - SJ08DY - tartan red - 1985 restauration fairly original - (1968 nr: 4137)
http://www.MGF.be
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Rob Bell
- Committee Member
- Posts: 14425
- Joined: Tue Oct 02, 2007 2:36 pm
- MGF Register Region: South East
- Model of Car: MGF 1.8i + MGF Shed!
Re: SOLVED! Mk2 Alternator in Mk1 car ?
Good second hand ones regularly crop up on eBay here in the UK still - in general, I get the feeling that the earlier alternator is rather more reliable than the later ones! But the originals are, of course, getting old now.
Mykel, did you get a chance to take any pictures of your Mk2 into Mk1 alternator set up? Might be helpful to others in the future
Mykel, did you get a chance to take any pictures of your Mk2 into Mk1 alternator set up? Might be helpful to others in the future