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Ignition/spark question
Yes, for VW distributors the "trigger angle" should be 60-70?.
The "fixed angle" should be set to -10 for the advance to follow the VE table, or set to a specific number, like 6? since our flywheels have a timing mark there, if you want to set the timing.
Cathy and I may be on to a little setup issue that may be the problem. If not I'll take a picture of my distributor so she can check phasing of the trigger wheel to the rotor as you suggested in your original email.
Thanks for the input Dave.
Dan
From: "David Brown" <sharpshooter33@xxxxxxxxxxxxxx>
To: "scirocco scirocco" <scirocco-l@xxxxxxxxxxxx>
Sent: Thursday, May 10, 2007 10:16 AM
Subject: Re: Ignition/spark question
> If the cap is on in the little tabs, the cap doesn't move at all I'd say you
> got it.
>
> I think the fixed angle in MS should be somewhere around 60 if I remember my
> reading correctly. the other angle sitting is -10 I believe.
>
> good luck. Get that thing running!!! 8-)
>
> David
>> Okay, you're not the first to suggest this. And I know Drew is laughing
>> his
>> ass off if he reads this (and he's always saying it's a skinny ass too,
>> so
>> that should be a short laugh) Okay, assuming that I am installing a cap
>> for
>> the first time, what is the correct method? I've had the cap on/off a few
>> times, and tried a different cap too. So maybe I just cannot install a
>> cap.
>> There'as a little tab that engages the distributor housing, if it it's in
>> the spot where it settles into that notch, and I do up the clips, that
>> should do it? Yeah, I'm serious. I'll check ANYTHING at this point.
>>
>>> or
>>> MS fixed angle and your distributor are such that the signal is
>>> coming at where the spark is being fired right at the edge of the
>>> cap/plug wire pickup so that with any advance or retard(depending on
>>> what edge) the spark is "missing" the plug wire pickup (this one is
>>> just a funky guess, but it sounds good) 8-)
>>
>>
>> Well, Dan and I did fiddle with this angle at one point, though it's back
>> to the original -10* now I think.
>>>
>>> Good luck. I wanna see that MS running at Cincy
>>
>> Well, how does CIS-E sit with you? Or compression ignition? Honestly, at
>> this point a diesel swap may have been easier. But agreed, I'd still like
>> to see it at Cincy too. The MS part has been the easiest part of it. It
>> was
>> the injector seat swap that was the doozy.
>> Keep suggestions coming.
>> Cathy
>>
>>
>>> David
>>>
>>> Keep us posted. Maybe this can help me avoid it when I install my
>>> MS(hopefully soon after Cincy)
>>> ----- Original Message -----
>>> From: "C Boyko" <roccit_53@xxxxxxxxxxxxxxxxxxxxxxx>
>>> To: <scirocco-l@xxxxxxxxxxxx>
>>> Sent: Wednesday, May 09, 2007 11:14 PM
>>> Subject: Ignition/spark question
>>>
>>>
>>> > Okay, I'm just fishing in case someone strikes on something that
>>> > works. I'm
>>> > trying to figure out why my MkI has gone from starting and idling
>>> > to running on one cylinder (number three in particular). Spark
>>> > seems to be the
>>> > issue. I drove the car on CIS with Megasquirt controlling spark
>>> > and it did a marvellous job (so the map is good, and it
>>> > functions), and this revised frankenbuild started and idled well
>>> > on both fuel and spark, until I got a throttle cable and was in a
>>> > position to actually drive it. It has not run on all four since.
>>> > I've done some basic diagnostics, Dan has been very helpful on the
>>> > MS end of it, but it appears that only one plug is firing with any
>>> > regularity, based on clipping the timing light over the various
>>> > wires. Many of the components are either new or have been swapped
>>> for different ones with no improvements. What I guess I want to find
>>> > out is what the causes of a no spark could be. Plugs wouldn't go
>>> > bad all at once with the car sitting (they are new), nor would
>>> > plug wires, or the cap or the rotor, but tell me you oddball tales
>>> > of queer spark behavior. New components include: plugs, wires,
>>> > cap, rotor, and obviously MS and the wires to Hall, power, ground,
>>> > and coil associated with it. Swapped components include: coil
>>> > (tried two), and ignition distributor (broke one and replaced it).
>>> > The fact that I do get spark indicates that basic function of Hall
>>> > and coil are okay, but what if the coil is weak? I just
>>> > reinstalled the firmware, so corruption there isn't the likely
>>> > cause. Anyway, fire it at me, I thrive on the confusion. Thanks.
>>> > cathy
>>> >
>>> >
>>> > _______________________________________________
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>>>
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>>
>>
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