RR p38A-94 flickering head lights/electrical problems

A

ake

New Member

Posts

6

Location

Helsinki, Finland

• May 13, 2009

• #1

I wonder if someone can help me with my P38A. It suddenly started to flicker sporadeously lights and markers, whipers windows etc stopped to work. First it gave alternator message but now this message is gone. (alternator gives 13,7 V) thanks

 

Big vee

Active Member

Posts

247

Location

Near Kingston upon Thames Surrey

• May 13, 2009

• #2

when i got mine it did that 97 p38 4.0 . fitted a new alternator all was fine then. if you can try a new one or good secondhand one to see if it cures it to.

 

Datatek

Well-Known Member

Posts

45,024

Location

Near Poitiers SW France

• May 13, 2009

• #3

ake said:

I wonder if someone can help me with my P38A. It suddenly started to flicker sporadeously lights and markers, whipers windows etc stopped to work. First it gave alternator message but now this message is gone. (alternator gives 13,7 V) thanks

Click to expand...

13.7v sounds low to me I would expect 14v+ from the alternator after a few minutes if the battery is good. I reckon the alternator is stuffed, more specifically either the brushes or the regulator Or it could be a bad earth from the engine to the chassis.

 

G

gavbriggs

Well-Known Member

Posts

5,861

Location

Sheffield uk

• May 13, 2009

• #4

check earths and other contact points, especially the battery leads alternator wires etc. if not that then replace alternator!

 

wammers

No longer with us, RIP

Donater

Posts

58,170

Location

Preston Lancs.

• May 13, 2009

• #5

ake said:

I wonder if someone can help me with my P38A. It suddenly started to flicker sporadeously lights and markers, whipers windows etc stopped to work. First it gave alternator message but now this message is gone. (alternator gives 13,7 V) thanks

Click to expand...

Try changing bushes in alteranator. If you can strip it and true up brass contact bushing on commutator before fitting new brushes. They will last longer if you do that. Alternator should show 14 Volts+ with all lights on.

 

A

ake

New Member

Posts

6

Location

Helsinki, Finland

• May 14, 2009

• #6

Thanks for the info, I ordered a new alternator today, but I tried to charge the battery full and still with a full battery the same problem existed. even electrical falut - message appeared briefly (+alternator fault message too)
the car starts ok and radio + fan i working ok all the time...