| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 978.1 | | BRIANH::NAYLOR | Purring on all 12 cylinders | Thu Mar 08 1990 09:34 | 7 |
| This appears to not be an alernator problem, but a control box problem.
I take it your battery hasn't gone flat yet? In which case you're pumping
out lots of amps, but the box isn't regulating them properly and the red
light is indicating a fault condition. If it really was the alternator not
charging, you would run out of erg juice pretty quick by loading up the
battery.
|
| 978.2 | | ANNECY::MATTHEWS | M+M Enterprises. Thats the CATCH | Thu Mar 08 1990 10:48 | 12 |
| I thought the alternators and control boxes were mutually exclusive ...
I have seen this type of thing with dynamos, but not with alternators.
It does sound like something to worry about to me. Perhaps the alternator
is putting out too much current ... perhaps worth checking the battery
temperature. They have been known to boil !!!
Apart from that, there is noting special about the MG alternator as far
as I am aware ...
Mark
|
| 978.3 | diodes..? | KERNEL::HUTCHINGS | umop episdn | Thu Mar 08 1990 11:20 | 4 |
| check the diode assembly to see if one has blown...
This happened on an alternator of mine once, giving the same probs
as you describe, a replacement assy costs about a third of the price
of a new alternator.
|
| 978.4 | Seen this before | VANILA::LINCOLN | The sun has got his hat on | Thu Mar 08 1990 11:59 | 6 |
| This is (as stated in .-1) a partial failure of the rectifier.
I reckon it's cheaper to get an exchange alternator than to
attempt to fix it, but could be wrong.
-John
|
| 978.5 | Right and a wrong way | VOGON::MORGAN | What part of NO don't you understand ? | Thu Mar 08 1990 12:13 | 8 |
| And am I right in thinking that there is a rigt and a wrong way to fit
a new alternator ??. The right way , it works !!, the wrong way is that
you overload the alternator and blow it.
Could someone a bit/more knowledgable please confirm/deny and explain
Rich
|
| 978.7 | ta...!!!!! | KERNEL::HUTCHINGS | umop episdn | Thu Mar 08 1990 14:27 | 13 |
| re: .4
Thats it...!!
I couldn't think of the assembly name....
rectifier....set term/commit_to_memory
ta..
it did fix the prob tho'
Paul
|
| 978.8 | Cheaper than a new alternator | RUTILE::SMITH_A | 2 down and 1 to go | Thu Mar 08 1990 16:40 | 5 |
| I'll endorse the rectifier solution.
I found it a very easy fix to do. Whip out the Alternator, take
off the end cover at opposite end to pulley, replace rectifier,
reassemble. Robert's your fathers brother.
|
| 978.9 | I've been there as well. | KERNEL::MARTIN | | Fri Mar 09 1990 07:23 | 10 |
|
I had the same problem with a Lucas alternator on a TR7 about 7
or 8 years ago.
I took it to a Lucas agent it took him about 2 mins to test. His
verdict was a blown rectifier. I could have an exchange alternator
there and then for 21 pounds or he could repair it for 7, but if
he repaired it I would have to wait until that evening to collect
it.
I had it repaired and even got a years guarantee. Had the car for
another 2 years with no problems.
|
| 978.10 | | SHAPES::ALFORDJ | Ice a speciality | Tue Mar 13 1990 12:57 | 9 |
|
sounds like the regulator...
this is a common fault with VW Polos/Golfs after the head has blown.
oil has dripped onto the altenator/regulator and the solution is to
very inexpensively replace the regulator.
the fault (in the VWs) is not detectable during the normal tests.
|
| 978.11 | Please refer to note 1266 | UKCSSE::RDAVIES | Live long and prosper | Tue Oct 30 1990 13:17 | 5 |
| Please put all future MGB releated material in note 1266.
This topic will be write locked
Richard (co-moderator)
|