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DS I vs. DS II?

Moderator: Mod Squad

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michael_cini
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DS I vs. DS II?

Post #1 by michael_cini » Tue Oct 27, 2009 2:24 pm

I was thinking of doing the recurve on my distributor (1975 250 I6) when I discovered that I don't have a DS II as I thought, but have a DS I. What are the differences and is it worth my time/energy to upgrade?
Thanks guys.
Michael
63 futura convertible sport coupe,
250 I6/C4, OZ head (milled, oversized valves), Holley 350cfm carb, 264/274-110 cam, 6 into 1 header, 2.5 exhaust with dynomax super turbo muffler, granada disc brakes, 5 bolt 8" rear.

BTW, it's pronounced Chee-knee.

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jamyers
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Re: DS I vs. DS II?

Post #2 by jamyers » Tue Oct 27, 2009 3:58 pm

Internally, the distributors are the same.
DSI has the normal-size cap that takes points-type plug wires.
DSII has the large-size cap that takes hei-type plug wires.

I've been using a DSI with good spiral-core wires for a couple of years now with ZERO issues. (well, except for that danged leaky valvestem seal on #6 intake...)
James - '62 Ranchero (200cid), '71 LeSabre (464cid)

The ONLY safety device we need is a 6" sharpened steel spike bolted to the center of the steering wheel of EVERY vehicle.
Emergency Rooms and Funeral Homes will be busy for a week or so, then I predict a dramatic drop in vehicle accidents.

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fordconvert
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Re: DS I vs. DS II?

Post #3 by fordconvert » Wed Oct 28, 2009 3:33 pm

I assume you made this discovery because what you have looked nothing like the pictures in the re curve instructions?

I have never seen the insides of the DS1 but if you are asking they must be different. Advantage to the DS2 would be that things like the re curve are better supported and documented. I have also had better luck finding the consumable parts in stock locally.
TJ H

Had a 66 mustang coupe, traded in for a 93 convert 2.3.
73 Eldorado convert 8.2 megasquirt, 80 Eldorado 5.7 diesel, 96 Suburban 6.5TD, 05 Magnum 5.7 hemi.

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michael_cini
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DS I to DS II, help!

Post #4 by michael_cini » Wed Feb 03, 2010 12:07 am

OK, so I have the DS1 presently in my car (green grommet module). So, I decided to keep the DS1 wiring and change to the DS2 box (blue grommet module.
User Explorer was nice to send the schematic for the DS1 and the DS2 so I could compared them. From what I could tell, all I needed to do was reverse the black-green (#8) wire and the purple-blue (#7) wire and it should work. Right?

Well, I tried it today and the car would not start. The battery cranks but no spark, and ideas guys?

Thanks.
Michael

DS1
Image
DS2
Image
63 futura convertible sport coupe,

250 I6/C4, OZ head (milled, oversized valves), Holley 350cfm carb, 264/274-110 cam, 6 into 1 header, 2.5 exhaust with dynomax super turbo muffler, granada disc brakes, 5 bolt 8" rear.



BTW, it's pronounced Chee-knee.

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Explorer
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Re: DS I vs. DS II?

Post #5 by Explorer » Wed Feb 03, 2010 9:07 am

Make sure you're getting your right voltages to the coil and look a couple posts down for troubleshooting the Duraspark. Couple of good links there.
66 Bronco half cab, 203 ci, 9.7:1 comp, CI aluminum head and intake, DSII ignition, Clifford header, Keith Black pistons, Isky 256/256 cam, lifters, chrome moly rings, push rods, Holley 390cfm 4v, 4:11 gears, 3-speed, 30/9.50/15's 18.28mpg pushing a 4000lb brick.
66 Mustang Coupe, 200I6 automatic

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michael_cini
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Re: DS I vs. DS II?

Post #6 by michael_cini » Thu Feb 04, 2010 1:45 am

Thanks for the tip Explorer.

I want to remove the new module and reinstall the old to test module but i cannot get the connectors apart. what is the secret to getting them apart? It says "pull apart" but I can't get them to budge!
63 futura convertible sport coupe,

250 I6/C4, OZ head (milled, oversized valves), Holley 350cfm carb, 264/274-110 cam, 6 into 1 header, 2.5 exhaust with dynomax super turbo muffler, granada disc brakes, 5 bolt 8" rear.



BTW, it's pronounced Chee-knee.

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Explorer
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Re: DS I vs. DS II?

Post #7 by Explorer » Thu Feb 04, 2010 8:14 am

They just have a plastic locking tab on each side of the plug.
66 Bronco half cab, 203 ci, 9.7:1 comp, CI aluminum head and intake, DSII ignition, Clifford header, Keith Black pistons, Isky 256/256 cam, lifters, chrome moly rings, push rods, Holley 390cfm 4v, 4:11 gears, 3-speed, 30/9.50/15's 18.28mpg pushing a 4000lb brick.
66 Mustang Coupe, 200I6 automatic

rommaster2
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Re: DS I vs. DS II?

Post #8 by rommaster2 » Thu Feb 04, 2010 1:12 pm

The secret for me was breaking the plastic locking tabs, the damn things are a snug fit either way

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michael_cini
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Re: DS I vs. DS II?

Post #9 by michael_cini » Thu Feb 04, 2010 2:15 pm

Thanks for the tips guys. Those sure fit snug. Yeah, I ended up breaking off a couple of them, but I got the module out!

I plugged the old module (green) in and the car started right up! I'm glad that I didn't burn out anything. So, now I have to figure out what has to be switched around to make the blue module work. In the mean time it's nice to have the car running.

Michael

Explorer wrote:They just have a plastic locking tab on each side of the plug.

rommaster2 wrote:The secret for me was breaking the plastic locking tabs, the damn things are a snug fit either way
63 futura convertible sport coupe,

250 I6/C4, OZ head (milled, oversized valves), Holley 350cfm carb, 264/274-110 cam, 6 into 1 header, 2.5 exhaust with dynomax super turbo muffler, granada disc brakes, 5 bolt 8" rear.



BTW, it's pronounced Chee-knee.

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Explorer
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Re: DS I vs. DS II?

Post #10 by Explorer » Fri Feb 05, 2010 7:43 am

Looked at those diagrams again and you don't need to swap the 7/8 pins. They are the same, just optical illusion, the colors/pin numbers match up. Should be plug and play, see note: replacement module may not have/use the brown wire.
66 Bronco half cab, 203 ci, 9.7:1 comp, CI aluminum head and intake, DSII ignition, Clifford header, Keith Black pistons, Isky 256/256 cam, lifters, chrome moly rings, push rods, Holley 390cfm 4v, 4:11 gears, 3-speed, 30/9.50/15's 18.28mpg pushing a 4000lb brick.
66 Mustang Coupe, 200I6 automatic

Lazy JW
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Re: DS I vs. DS II?

Post #11 by Lazy JW » Fri Feb 05, 2010 9:21 am

I agree, you "should" not need to swap those wires; plug and play will probably get it going.

I believe the schematic posted is in error; the numbers do match but the "apparent" positioning is indeed misleading. I looked up the schematic in my Haynes 73-79 F-series manual and the black-green wire from the distributor is a ground connection; by reversing the wires you simply grounded the "sensor" module, hence no spark. All of the model years shown for the F-series show the same relative wire positions on the Duraspark modules, and I see no reason why they would be changed for the cars.
Joe
"The White OX" 1974 F-350 300-6, Stock single exhaust, Carter YF, T-18A, Dana70 w/4.11, Flatbed dually w/dump bed. "Where no oxen are, the crib is clean, but much increase is by the strength of the ox" (Proverbs 14:4)
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michael_cini
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Re: DS I vs. DS II?

Post #12 by michael_cini » Sat Feb 06, 2010 12:27 am

That is great news guys! I will try it...as soon as the rain stops. I'll keep you posted.
63 futura convertible sport coupe,

250 I6/C4, OZ head (milled, oversized valves), Holley 350cfm carb, 264/274-110 cam, 6 into 1 header, 2.5 exhaust with dynomax super turbo muffler, granada disc brakes, 5 bolt 8" rear.



BTW, it's pronounced Chee-knee.

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Explorer
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Re: DS I vs. DS II?

Post #13 by Explorer » Sat Feb 06, 2010 8:15 am

I'll swap you my 14" snow and still coming, along with 15mph winds drifting it for your rain.
66 Bronco half cab, 203 ci, 9.7:1 comp, CI aluminum head and intake, DSII ignition, Clifford header, Keith Black pistons, Isky 256/256 cam, lifters, chrome moly rings, push rods, Holley 390cfm 4v, 4:11 gears, 3-speed, 30/9.50/15's 18.28mpg pushing a 4000lb brick.
66 Mustang Coupe, 200I6 automatic

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michael_cini
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Re: DS I vs. DS II?

Post #14 by michael_cini » Sat Feb 06, 2010 12:51 pm

don't get me wrong, i do not complain about the weather in sunny SoCal often. i know cold weather, i grew up in michigan! but i have a 1 car garage (used as storage), so all of my wrenching takes place in my driveway!

Explorer wrote:I'll swap you my 14" snow and still coming, along with 15mph winds drifting it for your rain.
63 futura convertible sport coupe,

250 I6/C4, OZ head (milled, oversized valves), Holley 350cfm carb, 264/274-110 cam, 6 into 1 header, 2.5 exhaust with dynomax super turbo muffler, granada disc brakes, 5 bolt 8" rear.



BTW, it's pronounced Chee-knee.

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michael_cini
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Location: Sherman Oaks, CA

Re: DS I vs. DS II?

Post #15 by michael_cini » Thu Feb 11, 2010 10:51 am

so, i switched the 2 wires back and tried it...nothing. it's not starting. maybe a bad module? puzzling.
63 futura convertible sport coupe,

250 I6/C4, OZ head (milled, oversized valves), Holley 350cfm carb, 264/274-110 cam, 6 into 1 header, 2.5 exhaust with dynomax super turbo muffler, granada disc brakes, 5 bolt 8" rear.



BTW, it's pronounced Chee-knee.

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Explorer
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Re: DS I vs. DS II?

Post #16 by Explorer » Thu Feb 11, 2010 12:02 pm

That would be my guess. Can't see anything else causing it with your old module still working. Pretty much verify's everything else is good.
66 Bronco half cab, 203 ci, 9.7:1 comp, CI aluminum head and intake, DSII ignition, Clifford header, Keith Black pistons, Isky 256/256 cam, lifters, chrome moly rings, push rods, Holley 390cfm 4v, 4:11 gears, 3-speed, 30/9.50/15's 18.28mpg pushing a 4000lb brick.
66 Mustang Coupe, 200I6 automatic

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