points causing periodic stalling

Hi all. My 72 SB had a 1600 DP with the 009 and weber progressive
carb. It runs great, but at idle I get a periodic "stutter", and
sometimes it will just stall. When it does stall and won't restart, i
found that if I just take of the distributor cap and rotor and open
and close the points by hand, it will restart. When I hook up the
dwell meter, the dwell is perfectly at 50 during idle, but when it
stutters it jumps to 0 before either recovering or stalling.
Obviously something's up with my points, but they are brand new (as is
the condensor), clearly well adjusted. Any ideas?

wrote:
> Hi all. My 72 SB had a 1600 DP with the 009 and weber progressive
> carb. It runs great, but at idle I get a periodic "stutter", and
> sometimes it will just stall. When it does stall and won't restart, i
> found that if I just take of the distributor cap and rotor and open
> and close the points by hand, it will restart. When I hook up the
> dwell meter, the dwell is perfectly at 50 during idle, but when it
> stutters it jumps to 0 before either recovering or stalling.
> Obviously something's up with my points, but they are brand new (as is
> the condensor), clearly well adjusted. Any ideas?
>

Genuine Bosch points?

Try this experiment:
Take points out and pass a fine file between them.
Just enough to rough up the contact surface.

Speedy Jim
http://www.nls.net/mp/volks/

Or use some fine emery cloth or one of those paper/wood nail files. I think
that they will work too.
And degrease/clean up those point contacts too with some alcohol! ;-)

"Speedy Jim" > wrote in message
...
> wrote:
>> Hi all. My 72 SB had a 1600 DP with the 009 and weber progressive
>> carb. It runs great, but at idle I get a periodic "stutter", and
>> sometimes it will just stall. When it does stall and won't restart, i
>> found that if I just take of the distributor cap and rotor and open
>> and close the points by hand, it will restart. When I hook up the
>> dwell meter, the dwell is perfectly at 50 during idle, but when it
>> stutters it jumps to 0 before either recovering or stalling.
>> Obviously something's up with my points, but they are brand new (as is
>> the condensor), clearly well adjusted. Any ideas?
>>
>
> Genuine Bosch points?
>
> Try this experiment:
> Take points out and pass a fine file between them.
> Just enough to rough up the contact surface.
>
> Speedy Jim
> http://www.nls.net/mp/volks/

Yes, they are genuine Bosch. I'll clean 'em up as you say. What do
you think is happening? are they sticking open?
I am thinking of going to the SVDC anyways, and might just get the
petronics to eliminate points once and for all.
Linus

> wrote in message
ups.com...
> Yes, they are genuine Bosch. I'll clean 'em up as you say. What do
> you think is happening? are they sticking open?
> I am thinking of going to the SVDC anyways, and might just get the
> petronics to eliminate points once and for all.
> Linus
>

what kind of coil are you running? make sure it has a resistor(internal or
external), or you may be momentarily welding the points shut without the
resistor....

FYI
I just had to repair an AC engine with the electronic ignition and a dead
miss.
It was the electronic ignition causing a no-spark. Magnets were all there
and so was the miss.
That engine got points and more power!

I have seen only 3 electronic ignitions on ACVWs and this was the only one
with a problem.
--
later,
dave
(One out of many daves)

> wrote in message
ups.com...
> Yes, they are genuine Bosch. I'll clean 'em up as you say. What do
> you think is happening? are they sticking open?
> I am thinking of going to the SVDC anyways, and might just get the
> petronics to eliminate points once and for all.
> Linus
>

I had some similar issues with my 71 Std. I installed a Pertronix
ignition to replace the points. It really does work great and
eliminates issues that you have with points. Points pit and get worse
over time, changing the timing, dwell, and everything else about the
ignition system, like a chain reaction. You can make up your own
mind, if you want to get rid of the points and go with an electronic
point replacement (some call it electronic ignition). I would
suggest reading what others have to say about it on this board. It is
defiantly in the top 5 things I would do to a bug to bring it into the
21st century, to make my life easier, and cut back on maintenance.
I'm sure some people stick with the points and will disagree, but you
will never find yourself wondering if your points are going bad,
adjusting the points, dwell and timing. Just install it and forget
it. I'm not a mechanic and would rate the install as very easy.

Hope this helps,
John