70 Bug alternator problem

25 posts · joined Jun 2004 · 15 Jun 2004, 7:00 pm

#187083

I just bought my first dub (1970, 1500 currently running a 1300 engine) and it was running great until it started to jerk very slightly at revs. I drove it on the weekend. I stopped to fill up and it would not restart. Just the usual clunk noise when the battery is flat. Roll started it and got home. The Generator light is on intermittantly and the battery will not charge. The RACV came and tested the current from the battery and go to the engine and they were both below norm.

I have checked the bushes on the alternator and they are in good nick. The fan belt is tensioned right and I took the top off the "relay"? in the back seat and there is no sign of any burning or fusing.

I do not want to run the engine in case I blow the alternator so any assistance you could give a new dubber would be appreciated.

Thanks

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 · 15 Jun 2004, 8:08 pm

#187145

how is the battrey??? - may have internal shorts. Can you swap and see if that makes a difference.

What voltage is on the battery when idling??? Should be 13.5 volts or so.

Being picky - do you have an alternator or generator???

Alternators dont have bushes - generators do.
I didnt think generators had their regulators under the seat though????

Anyway

Futue te ipsum!!!

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 · 15 Jun 2004, 8:09 pm

#187146

By the way - welcome to our group :bounce

Futue te ipsum!!!

kickatinalong Casual Dubber

25 posts · joined Jun 2004 · 15 Jun 2004, 8:15 pm

#187154

blue74l wrote:By the way - welcome to our group :bounce

Thanks glad to be in.

The battery is 4 months old.

I wasn't sure if you called it an alternator or generator.

The voltage I think was around 9 - 10 then surged back up to 14 but then dropped back down. The generator light would then come on and off. The motor would also stop on idle.

LOWBUG Insano Dub Head

738 posts · joined Jul 2003 · 15 Jun 2004, 8:16 pm

#187155

Yeh I agree is it an altinator or generator, if generator ist probably your regulator.

Try saying that 3 times fast after a 6 pack

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 · 15 Jun 2004, 8:20 pm

#187160

kickatinalong wrote:[The voltage I think was around 9 - 10 then surged back up to 14 but then dropped back down. The generator light would then come on and off.

I will have 2 crowns that it is your regulator.
I should be sitting on at least 13 Volts.

I would take it to an auto lekky if you aint real confident.

Futue te ipsum!!!

kickatinalong Casual Dubber

25 posts · joined Jun 2004 · 15 Jun 2004, 8:35 pm

#187174

Thanks for all your help. I have been given a quote for a regulator and generator that seems a bit extreme. Any one know where I can get one that doesn't cost me an arm or a leg as I would like to have some left over for those crowns of my own.

kickatinalong Casual Dubber

25 posts · joined Jun 2004 · 15 Jun 2004, 8:36 pm

#187176

oops Sorry I forgot. Unless your a mind reader I live in Melbourne.

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 · 15 Jun 2004, 8:43 pm

#187182

I have a good generator ( or was when it was pulled and has just sat ) you can have for......$65? + delivery

Dont think delivery would be that much. Still has the fan.
cant help with the reg. What were you quoted???

Maybe convert now to alternator???

I have a alternator and ext reg you can buy.

[Edited on 15-6-2004 by blue74l]

Futue te ipsum!!!

kickatinalong Casual Dubber

25 posts · joined Jun 2004 · 15 Jun 2004, 9:28 pm

#187223

oops Sorry I forgot. Unless your a mind reader I live in Melbourne.

kickatinalong Casual Dubber

25 posts · joined Jun 2004 · 15 Jun 2004, 9:37 pm

#187231

Thanks,

I will get the problem diagnosed further by and auto electrician and will get back to you.

Thanks again.

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 · 15 Jun 2004, 9:38 pm

#187237

cool

u2u me if ya interested

Futue te ipsum!!!

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 · 15 Jun 2004, 10:48 pm

#187301

We don't like being mind readers kickatinalong thats why You should have put Your location in Your Profile.....

If its a generator, it does have a regulator under the rear seat... if its an Alternator, it won't.... & shouldn't !!
Both Generators and Alternators have brushes which do wear out... they are inexpensive and not too difficult to replace...
Its probably a generator and Your regulator is faulty.....
they do wear out .... after 25 years .....

Lee --

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- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

kickatinalong Casual Dubber

25 posts · joined Jun 2004 · 16 Jun 2004, 5:11 am

#187351

I have checked the brushes and they seem to be in fairly good condition and still have lots of wear left. I hope that it is just the regulator that needs replacing.

Thanks again