Daemon4x4 - 4x4 & Off Road Technical Board

Daemon4x4 - 4x4 & Off Road Technical Board

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#105-11-2011 15:53:04

would i be right in thinking.....

That the below light show is alternator not charging battery.....


http://s749.photobucket.com/albums/xx140/BigBobE_2009/

#205-11-2011 18:17:28

Re: would i be right in thinking.....

Yes, most likely.
But check the earth straps and that the plug on the back of the alternator is secure before buying a new one.

#305-11-2011 18:24:41

Re: would i be right in thinking.....

And then do your timing belt  smile

#405-11-2011 18:43:45

Re: would i be right in thinking.....

And buy a 3.0 litre.

#505-11-2011 18:54:27

Re: would i be right in thinking.....

Only engine to grace this will be of the 4ltr variety,

Would my splashing about in puddles have been a possible cause of above issue too?? Will check alternator tmr.

Thanks for the heads up vince

#605-11-2011 18:59:04

Re: would i be right in thinking.....

No the timing belt needs doing every 60k  whistle

#705-11-2011 19:22:08

Re: would i be right in thinking.....

timing belt just looks like too much of a bitch of a job to do in cold weather...

#805-11-2011 20:32:11

Re: would i be right in thinking.....

Icon - Post link BigBobE wrote:

timing belt just looks like too much of a bitch of a job to do in cold weather...
Turn the warning light off..it's bugging me and it's on your car!... hmm ... big_smile

#905-11-2011 20:50:46

Re: would i be right in thinking.....

lol  lol  lol

#1005-11-2011 21:55:55

Re: would i be right in thinking.....

Icon - Post link Tonka wrote:

Icon - Post link BigBobE wrote:

timing belt just looks like too much of a bitch of a job to do in cold weather...
Turn the warning light off..it's bugging me and it's on your car!... hmm ... big_smile
Only just put in the bulb a couple of weeks....

#1105-11-2011 22:09:33

Re: would i be right in thinking.....

Icon - Post link BigBobE wrote:

Icon - Post link Tonka wrote:

Icon - Post link BigBobE wrote:

timing belt just looks like too much of a bitch of a job to do in cold weather...
Turn the warning light off..it's bugging me and it's on your car!... hmm ... big_smile
Only just put in the bulb a couple of weeks....
Don't it drive you nuts?......reset it please or I won't be able to sleep tonight... tongue ..

#1205-11-2011 23:31:14

Re: would i be right in thinking.....

I am used to it now  tongue  tongue  I see it and go shit.I need to fix that still....

#1305-11-2011 23:33:21

Re: would i be right in thinking.....

Fix it the Homer way










Black insulation tape over the display  smile  smile

#1405-11-2011 23:36:57

Re: would i be right in thinking.....

Icon - Post link meooo wrote:

Fix it the Homer way










Black insulation tape over the display  smile  smile
Got to admit mine was like that till Tony pointed out how it was reset.... roll

#1505-11-2011 23:37:41

Re: would i be right in thinking.....

Icon - Post link BigBobE wrote:

I am used to it now  tongue  tongue  I see it and go shit.I need to fix that still....
What the light or the belt... big_smile

#1605-11-2011 23:52:36

Re: would i be right in thinking.....

I fixed light.... Timing belt will need a little more attention than I can muster on a hangover Sunday....


I am working 6 days a week at the moment....

#1706-11-2011 21:16:50

Re: would i be right in thinking.....

is there diagrams available showing earth straps or is there just one or 2.... its baltic here at the moment so i havent bothered my arse to go out in the cold to check.....

#1803-12-2011 12:30:06

Re: would i be right in thinking.....

right had a looksie today and can see one cable leaving driverside negative battery pole heading down to alternator, is the anymore that could be hiding on me???

right i got my meter out, only getting 11.98v at battery terminals,

http://i749.photobucket.com/albums/xx140/BigBobE_2009/IMAG0338.jpg

disconnected the white lead off the copper terminal below and checked voltage between chassis and copper terminal and i have 0.5v,

check voltage between white lead and chassis and i have 11.98v, am i right in thinking alternator is fubared???

Last edited by BigBobE (03-12-2011 13:07:01)

#1903-12-2011 18:36:58

Re: would i be right in thinking.....

Bob I reckon that lead is the battery postive to the alternator, thats why you got battery voltage when checking to earth. With that lead connected and engine running does the voltage increase? Usually @ around 2500 revs you should be seeing around 14v at the battery, then with headlights, heated rear screen and heater blower on, the same revs should give between 12 and 13v. If you aren't seeing those figures chances are the alt isn't charging.

#2003-12-2011 18:55:27

Re: would i be right in thinking.....

Icon - Post link BigBobE wrote:

right had a looksie today and can see one cable leaving driverside negative battery pole heading down to alternator, is the anymore that could be hiding on me???

right i got my meter out, only getting 11.98v at battery terminals,

disconnected the white lead off the copper terminal below and checked voltage between chassis and copper terminal and i have 0.5v,

check voltage between white lead and chassis and i have 11.98v, am i right in thinking alternator is fubared???
That white cable links the alternator to the positive terminal on the driver's side battery. (The cable that puts charge into the batteries)

The negative cable from the battery does not go to the alternator, it goes to the engine block or chassis.

#2103-12-2011 19:20:17

Re: would i be right in thinking.....

Check that the bolts securing the alt have good contact with both the alternator housing and their respective fixing points. As Vince says, the grounding is done through the housing, so if the fixing bolts and the parts of the housing they contact are scaled up, your ground connection will be poor at best.

#2203-12-2011 21:08:53

Re: would i be right in thinking.....

Cheers, well between housing and that copper terminal I am only getting 0.5v, and with idle up on I am not getting any increase in voltage at the battery,

I can see where the earth from the battery is bolted onto the main engine block and all seems sound there as well.... Will have another look tomorrow.

Thanks again.

#2303-12-2011 21:40:54

Re: would i be right in thinking.....

Can't remember, offhand, whether alternators also require an external voltage to their field winding, or whether they rely on residual magnetism initially and then draw that voltage from the rectifier pack once upto speed. What are the three connections to the back of the alternator? One of those should be an ignition switched live, if I recall correctly?

#2403-12-2011 21:47:49

Re: would i be right in thinking.....

not sure matt but if i unplug that the truck stops beeping and moaning, i'll have a look tomorrow, in the video i posted you can here the warning noises and when i rev it a bit they stop, but i dont get an increase in voltage at either battery, hence i think i am in the market for an alternator with a round plug on the back...

#2503-12-2011 21:49:46

Re: would i be right in thinking.....

Possibly. Alternators are bloody weird things. Can never, for the life of me, remember exactly how they're setup to work. big_smile
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