[tcb] Re: SVDA
- From: Conrad Klahn <conradk@xxxxxxx>
- To: "tcb@xxxxxxxxxxxxx" <tcb@xxxxxxxxxxxxx>
- Date: Sun, 18 Jan 2015 12:24:51 -0600
Yes Bill is right - my metaphysical mobile mechanic pointed this out to me and
said this is a common confusion on these.
http://www.ttalk.info/PertronixStaticNeg.htm
This will be my first experience with a mechanical Pertronix (on a 2017 with
40IDX's). I don't have vacuum ports right now so that was the option.
The last SVDA I bought for a 1600 had no positive or negative benefit over a
009 that I could tell. I still suffered from a stumble that I assume now was a
lean idle mixture. But I'm not an expert.
My experience is that people swear by whatever they like best.
> On Jan 18, 2015, at 11:53 AM, Bbauer2000 <bbauer2000@xxxxxxxxx> wrote:
>
> Cari,
> I run that combo on several of my motors.
>
> 1) yes it should idle without carb adjustments unless your carb is really
> "out " of adjustment.
>
> 2) with that SVDA Petronix you will need to double check the position of the
> rotor against stock. If memory serves it is 90 degrees off from stock.
> Verify that during install and adjust the wires accordingly and you will be
> fine.
>
> Call or email with questions.
>
> Bill
>
>
>> On Jan 18, 2015, at 11:42 AM, Cari Smith <cariandpaul@xxxxxxxxx> wrote:
>>
>> Sammie,
>> We are trying the Petronix svda "flame thrower" d186504. (Insert
>> testosterone grunt here). Alma Jo suggested that we make sure our coil could
>> handle this dizzy. We found a matching coil and Paul is off to purchase it
>> now. Two questions:
>>
>> 1.if we could achieve good idle with the 009, shouldn't we be able to at
>> least get a rough idle with the new dizzy without carb adjustments?
>>
>> 2. On our old 009 you could clearly make out (with the cap off) when it was
>> pointing to cyl. 1. The svda dizzy is different. When we are at tdc, it is
>> sitting between 2 contact points. I don't understand this??
>>
>>> On Saturday, January 17, 2015, sammie smith <bugcollections@xxxxxxxxxxxxx>
>>> wrote:
>>> What kind of Petronix? If you are still running a 009 you are not going to
>>> get rid of the flat spot. That is caused by the advance curve of the 009
>>> in conjunction with the 34 carb. There are two ways to get rid of that:
>>> Well, actually 3 ways if you want to count going back to the stock
>>> distributor. One: and probably the best (and also most expensive) is to go
>>> to an SVDA distributor. Two: you can change the advance on the 009. A
>>> stock 009 advances about 22-24 degrees. It does not advance fast enough
>>> for the 34 carb. So, you can decrease the advance on the 009 by going into
>>> the distributor, bending a tab down to prevent advance to about 12-15
>>> degrees then set you static advance at 15-16 degrees so that total advance
>>> is still the 30-31 that you want at 3,000 rpms. Basically this means you
>>> have about 15 degrees of initial advance which prevents the stall when
>>> starting off. Essentially the problem with the 009 in conjunction with the
>>> 34 is that the 009 does not give you enough initial advance quick enough
>>> for the carb.
>>>
>>> Now, none of this has anything to do with the problems you are now
>>> experiencing. Make sure you have the carb tuned correctly and are getting
>>> fuel. Make sure you have good hot spark. Set timing static at 7-8 degrees
>>> BTDC and then check total advance with a timing light. Should be around 30
>>> and not more than 32. Also make sure your points are set at .016 if you go
>>> back to points.
>>>
>>>
>>> On Saturday, January 17, 2015 1:28 PM, Denis <coocoo@xxxxxxx> wrote:
>>>
>>>
>>> My 2 cents. If it wouldn’t run smooth with a clean set of points and
>>> condenser it will never run clean with Petronix. Go back and try it with
>>> new points and condenser and then look at your coil, how hot is it?
>>> . Seen all those symptoms with those problems.
>>>
>>>
>>> From: Cari Smith
>>> Sent: Saturday, January 17, 2015 12:34 PM
>>> To: tcb@xxxxxxxxxxxxx
>>> Subject: [tcb] SVDA
>>>
>>> Running a 1641 dp.
>>> 34 pict 3
>>> Was running a 009 but had horrible flat spots in acceleration.
>>> Read some threads recommending a svda replacement. Purchased a petronix
>>> distributor. Now we cannot even get an idle. Timing has been tried at
>>> varying degrees of advance from tdc all the way to about 18 degrees.
>>>
>>> Ideas or suggestions?
>>> Cari Smith
>>>
>>>
>>>
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