three new alternators

gandolf · 11-10-2017, 01:39 PM

First new alternator in dec. 16,2nd in April 17 and now third.They just stopped charging it has to be a problem caused by the car anybody have an idea what may be causing this.I don't think supplier will give me a fourth in feb 18.

InstantCustard · 11-10-2017, 01:49 PM

Could be getting cooked or getting too much weather, I’d use a heat shield to protect it from both the heat and weather.
I can’t think of anything else obvious.

Sent from my iPhone using Tapatalk

will16 · 11-10-2017, 02:27 PM

Does your ignition light work?

gandolf · 11-10-2017, 02:32 PM

Quote:

Originally Posted by will16

Does your ignition light work?

Yes ignition light works voltage meter shows no charge, battery shows no charge when revved.

richie08 · 11-10-2017, 03:07 PM

Bad engine earth?

Sent from my SM-G930F using Tapatalk

Ken555 · 11-10-2017, 03:13 PM

Overspeed ?

Are you using the same crank pulley ?

gandolf · 11-10-2017, 06:11 PM

Quote:

Originally Posted by Ken555

Overspeed ?

Are you using the same crank pulley ?

The engine is a standard 1600.

evolotion · 11-10-2017, 09:41 PM

Shit alternator brand? What's the rest of your car like electrically still on mems or something else?

I used to go through alternators when I daily drove my mini but usually they would start screaming first as the bearings got chewed up from water and grime flung up from the tyre.

Birdman · 12-10-2017, 07:27 AM

Are you using it in the correct direction of rotation? Some can be used either direction with their cooling fan others can't or may need cooling fan of different direction. Just guessing.

gandolf · 12-10-2017, 07:41 AM

Quote:

Originally Posted by Birdman

Are you using it in the correct direction of rotation? Some can be used either direction with their cooling fan others can't or may need cooling fan of different direction. Just guessing.

Evolution the car is still on mems 3. Birdman the alternator is in the standard position. The original one with the engine was the Bosch and must have lasted 16 yrs,these are from Europarts and according to the box are made for europarts.Evolution may be right ,but lasting just the same amount of time.I think I need to carry a spare.

evolotion · 12-10-2017, 10:09 AM

As its on mems just double check the high current wiring carefully for chaffage and when the cars running lights on etc measure the voltage between the alternator + bolt and the + on the battery there should be less than 0.2v drop with lights/wipers/rear screen on . if the drop is greater then use the meter to narrow down on what wire run or joint is failing.

I would also go on ebay and get a clean looking used alternator and try that too...

Have had a lot of bad luck with reman alternators lately.

gandolf · 12-10-2017, 11:39 AM

Quote:

Originally Posted by evolotion

As its on mems just double check the high current wiring carefully for chaffage and when the cars running lights on etc measure the voltage between the alternator + bolt and the + on the battery there should be less than 0.2v drop with lights/wipers/rear screen on . if the drop is greater then use the meter to narrow down on what wire run or joint is failing.

I would also go on ebay and get a clean looking used alternator and try that too...

Have had a lot of bad luck with reman alternators lately.

Thanks for the help Dennis

gandolf · 13-10-2017, 04:52 PM

Well after receiving my third alternator (the wrong one) I now have the correct one and is charging at 15 volts with revs above 3500 as was my other two.Is this right or too high?

AGoaty · 13-10-2017, 05:06 PM

Too high. I have a digital reading on my dash. Highest it gets is 14.2v. It only reads that for a couple of minutes then drops under 14v for rest of the day.

gandolf · 13-10-2017, 05:25 PM

Quote:

Originally Posted by AGoaty

Too high. I have a digital reading on my dash. Highest it gets is 14.2v. It only reads that for a couple of minutes then drops under 14v for rest of the day.

thanks Andy ,what do you think can cause this?

11-10-2017, 01:39 PM	#1
gandolf Member Join Date: Jan 2011 Location: north cornwall Posts: 94 Subframe: Home Made CC: 1600 Make: Rover ECU: standard ECU	three new alternators First new alternator in dec. 16,2nd in April 17 and now third.They just stopped charging it has to be a problem caused by the car anybody have an idea what may be causing this.I don't think supplier will give me a fourth in feb 18.

11-10-2017, 09:41 PM	#8
evolotion Senior Member Join Date: Oct 2003 Location: Glasgow. Posts:17,498 Posts: 6,114 Subframe: Home Made CC: 1400 Make: Rover ECU: Megasquirt	Shit alternator brand? What's the rest of your car like electrically still on mems or something else? I used to go through alternators when I daily drove my mini but usually they would start screaming first as the bearings got chewed up from water and grime flung up from the tyre. __________________ 11.9@118 :) Denis.

12-10-2017, 07:27 AM	#9
Birdman Senior Member Join Date: Nov 2009 Location: Chessington, Surrey Posts: 5,442 Subframe: Home Made CC: 2000 Make: Vauxhall ECU: Motronic 2.5 - Group N Chip	Are you using it in the correct direction of rotation? Some can be used either direction with their cooling fan others can't or may need cooling fan of different direction. Just guessing. __________________ Whale Oil Beef Hooked! (use Irish accent)

12-10-2017, 10:09 AM	#11
evolotion Senior Member Join Date: Oct 2003 Location: Glasgow. Posts:17,498 Posts: 6,114 Subframe: Home Made CC: 1400 Make: Rover ECU: Megasquirt	As its on mems just double check the high current wiring carefully for chaffage and when the cars running lights on etc measure the voltage between the alternator + bolt and the + on the battery there should be less than 0.2v drop with lights/wipers/rear screen on . if the drop is greater then use the meter to narrow down on what wire run or joint is failing. I would also go on ebay and get a clean looking used alternator and try that too... Have had a lot of bad luck with reman alternators lately. __________________ 11.9@118 :) Denis.

13-10-2017, 04:52 PM	#13
gandolf Member Join Date: Jan 2011 Location: north cornwall Posts: 94 Subframe: Home Made CC: 1600 Make: Rover ECU: standard ECU	Well after receiving my third alternator (the wrong one) I now have the correct one and is charging at 15 volts with revs above 3500 as was my other two.Is this right or too high? Last edited by gandolf; 13-10-2017 at 04:54 PM. Reason: spelling

11-10-2017, 02:27 PM	#3
will16 Senior Member Join Date: Dec 2014 Location: Abingdon, Oxforshire Posts: 193 Subframe: Home Made CC: 1796 Make: Rover ECU: K Maps 170	Does your ignition light work?

11-10-2017, 03:07 PM	#5
richie08 Senior Member Join Date: Jun 2008 Location: Ayrshire, Scotland Posts: 773 Subframe: Other CC: 1396 Make: Rover ECU: Rover mems	Bad engine earth? Sent from my SM-G930F using Tapatalk

11-10-2017, 03:13 PM	#6
Ken555 Member Join Date: Oct 2010 Location: NE Scotland Posts: 38 Subframe: Home Made CC: 1590 Make: Honda ECU: PW0 with custom map	Overspeed ? Are you using the same crank pulley ?

13-10-2017, 05:06 PM	#14
AGoaty Senior Member Join Date: Oct 2008 Location: Keighley, West Yorkshire Posts: 2,633 Subframe: Watson CC: 1796 Make: Rover ECU: Standard	Too high. I have a digital reading on my dash. Highest it gets is 14.2v. It only reads that for a couple of minutes then drops under 14v for rest of the day. __________________ If tha does owt fo nowt, olas do it fo this 'en.

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