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New SVDA no notch indicating cylinder #1
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rusty_74_bug
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PostPosted: Thu Jun 17, 2021 12:02 pm    Post subject: New SVDA no notch indicating cylinder #1 Reply with quote

I'm finally switching over to an SVDA and trying to static time it but the new one has no notch indicating cylinder #1. I thought that other than the vacuum advance, it's essentially the same as a 009, which I'm familiar with. I can't get it to start, am I doing something wrong?
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Paul Windisch
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PostPosted: Thu Jun 17, 2021 12:08 pm    Post subject: Re: New SVDA no notch indicating cylinder #1 Reply with quote

The notch on a 009 is generally 90° off from a stock distributor.

In the end, it doesn't really matter. Set the engine at TDC of the compression stroke on cylinder #1. Wherever the rotor is pointing, that is cylinder #1. Then, follow the firing order for the rest of the plug wires.
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1984 Mexican Beetle
-1914cc
-L3 Heads 35x32 valves 52cc chambers
-0.040" deck for about 9.1:1 Compression
-Engle W110 cam
-CB Super Stock 1.1:1 Rockers
-Stock Heat Exchangers w/ Tri-Mil Muffler
-Dual Weber IDF 40s w/ 26mm venturis
-034 SVDA Distributor

2013 Chevrolet Volt DD
2005 Pontiac Montana SV6

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rusty_74_bug
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PostPosted: Thu Jun 17, 2021 12:17 pm    Post subject: Re: New SVDA no notch indicating cylinder #1 Reply with quote

Paul Windisch wrote:
The notch on a 009 is generally 90° off from a stock distributor.

In the end, it doesn't really matter. Set the engine at TDC of the compression stroke on cylinder #1. Wherever the rotor is pointing, that is cylinder #1. Then, follow the firing order for the rest of the plug wires.



Thanks. Maybe I'm on the wrong stroke or I got the plug wires mixed up...wouldn't be the first time Laughing I'll keep trying.
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Paul Windisch
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PostPosted: Thu Jun 17, 2021 12:24 pm    Post subject: Re: New SVDA no notch indicating cylinder #1 Reply with quote

In general, if the distributor gear is in the proper position, and the distributor drive dog is on correctly, it will look like this:


Image may have been reduced in size. Click image to view fullscreen.

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1984 Mexican Beetle
-1914cc
-L3 Heads 35x32 valves 52cc chambers
-0.040" deck for about 9.1:1 Compression
-Engle W110 cam
-CB Super Stock 1.1:1 Rockers
-Stock Heat Exchangers w/ Tri-Mil Muffler
-Dual Weber IDF 40s w/ 26mm venturis
-034 SVDA Distributor

2013 Chevrolet Volt DD
2005 Pontiac Montana SV6

MAHLE Service Solutions
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Pruneman99
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PostPosted: Thu Jun 17, 2021 12:53 pm    Post subject: Re: New SVDA no notch indicating cylinder #1 Reply with quote

Paul Windisch wrote:
The notch on a 009 is generally 90° off from a stock distributor.

In the end, it doesn't really matter. Set the engine at TDC of the compression stroke on cylinder #1. Wherever the rotor is pointing, that is cylinder #1. Then, follow the firing order for the rest of the plug wires.


THIS!

I always tell people to forget about the notch. Just make sure your on TDC #1 and see where the rotor is pointing. That's #1. Many times the distributor drive gear was not installed in the proper place and it changes the location of the terminals.

You can go and relocate the distributor drive gear, but it's not necessary.
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rusty_74_bug
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PostPosted: Thu Jun 17, 2021 1:58 pm    Post subject: Re: New SVDA no notch indicating cylinder #1 Reply with quote

Paul Windisch wrote:
In general, if the distributor gear is in the proper position, and the distributor drive dog is on correctly, it will look like this:


Image may have been reduced in size. Click image to view fullscreen.


Huh? I thought the firing order was 1-2-4-3? Your pic looks like 1-4-3-2..?
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PostPosted: Thu Jun 17, 2021 2:31 pm    Post subject: Re: New SVDA no notch indicating cylinder #1 Reply with quote

It is indeed 1-4-3-2. It should be cast into the bottom of your generator stand, assuming it’s stock.
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1984 Mexican Beetle
-1914cc
-L3 Heads 35x32 valves 52cc chambers
-0.040" deck for about 9.1:1 Compression
-Engle W110 cam
-CB Super Stock 1.1:1 Rockers
-Stock Heat Exchangers w/ Tri-Mil Muffler
-Dual Weber IDF 40s w/ 26mm venturis
-034 SVDA Distributor

2013 Chevrolet Volt DD
2005 Pontiac Montana SV6

MAHLE Service Solutions
Applications Engineer
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rusty_74_bug
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PostPosted: Thu Jun 17, 2021 2:53 pm    Post subject: Re: New SVDA no notch indicating cylinder #1 Reply with quote

Paul Windisch wrote:
It is indeed 1-4-3-2. It should be cast into the bottom of your generator stand, assuming it’s stock.


I wonder where the hell I got 1-2-4-3 from. Laughing
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rusty_74_bug
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PostPosted: Thu Jun 17, 2021 3:59 pm    Post subject: Re: New SVDA no notch indicating cylinder #1 Reply with quote

I had to stop for the day but it appears I know what I did wrong. For some reason I was incorrect about the firing order. I'll take another crack at it this weekend but I'd bet that's what was wrong. Thanks for everyone's help!
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ashman40
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PostPosted: Thu Jun 17, 2021 4:22 pm    Post subject: Re: New SVDA no notch indicating cylinder #1 Reply with quote

Pruneman99 wrote:
Paul Windisch wrote:
In the end, it doesn't really matter. Set the engine at TDC of the compression stroke on cylinder #1. Wherever the rotor is pointing, that is cylinder #1. Then, follow the firing order for the rest of the plug wires.


I always tell people to forget about the notch. Just make sure your on TDC #1 and see where the rotor is pointing. That's #1. Many times the distributor drive gear was not installed in the proper place and it changes the location of the terminals.

You can go and relocate the distributor drive gear, but it's not necessary.

Agree with the above.

Rotate the crank while watching the #1 cylinder rocker arms. When both #1 valves are closed AND the crank pulley shows TDC... you are at the end of the compression stroke for #1 cylinder. That cylinder is now expecting a spark. The distributor needs to be set up to deliver that spark to the #1 spark plug wire.

The other thing to consider with an SVDA/DVDA distributor is placement of the vacuum canister. The above pic shows the stock position for the vacuum canister. If your canister is somewhere else, now is the time to remove the distributor (if needed) and rotate the distributor body to get the canister in the correct (or close to correct position). Placing it as shown above will give you the best range of motion for adjusting the timing.

Next, set your point gap and static time the distributor. Add a paint mark or notch into the rim of the distributor where the rotor is pointing. You can use this mark going forward as a reference for where the #1 plug wire should be installed around the cap. Marking the cap with cylinder numbers is also good but you will loose these markings when you next change the cap.
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PostPosted: Thu Jun 17, 2021 5:42 pm    Post subject: Re: New SVDA no notch indicating cylinder #1 Reply with quote

The top center case stud is missing a nut as well.
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PostPosted: Thu Jun 17, 2021 5:50 pm    Post subject: Re: New SVDA no notch indicating cylinder #1 Reply with quote

FYI, location of #1 on a German Bosch 0231 170 034
Image may have been reduced in size. Click image to view fullscreen.

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Paul Windisch
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PostPosted: Fri Jun 18, 2021 5:51 am    Post subject: Re: New SVDA no notch indicating cylinder #1 Reply with quote

In Glenn's pic above, 034 is on the left, 009 is on the right.

And yes, that case stud was missing a nut. Very Happy

I was originally going to mount the coil there, but didn't, and forgot to put the nut on.
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1984 Mexican Beetle
-1914cc
-L3 Heads 35x32 valves 52cc chambers
-0.040" deck for about 9.1:1 Compression
-Engle W110 cam
-CB Super Stock 1.1:1 Rockers
-Stock Heat Exchangers w/ Tri-Mil Muffler
-Dual Weber IDF 40s w/ 26mm venturis
-034 SVDA Distributor

2013 Chevrolet Volt DD
2005 Pontiac Montana SV6

MAHLE Service Solutions
Applications Engineer
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Marinablau703
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PostPosted: Fri Jun 18, 2021 6:23 am    Post subject: Re: New SVDA no notch indicating cylinder #1 Reply with quote

rusty_74_bug wrote:


I wonder where the hell I got 1-2-4-3 from. Laughing


Turning the engine backwards as a shortcut for adjusting the valves, probably.

Firing order is also cast into the gen/alt pedestal. "Zundfolge." Very Happy
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PostPosted: Fri Jun 18, 2021 7:28 am    Post subject: Re: New SVDA no notch indicating cylinder #1 Reply with quote

Marinablau703 wrote:
rusty_74_bug wrote:


I wonder where the hell I got 1-2-4-3 from. Laughing


Turning the engine backwards as a shortcut for adjusting the valves, probably.

Firing order is also cast into the gen/alt pedestal. "Zundfolge." Very Happy

Backwards is 1-2-3-4
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