Duraspark II conversion help
Cargo Master
Joined: Mar 2008
Posts: 2,561
Likes: 206
From: Washington
Here is a link with lots of photos of what an 1986 Carb should look like.
This is a computer controlled Carb, your truck has a computer installed above the gas peddle
https://www.ford-trucks.com/forums/9...r-carb-id.html
This is a computer controlled Carb, your truck has a computer installed above the gas peddle
https://www.ford-trucks.com/forums/9...r-carb-id.html
Junior User
Joined: Dec 2009
Posts: 62
Likes: 0
From: St Louis Mo
The carb fits and I got the truck running but the vacume lines are plugged up that I have no clue what they are for. Motor number is.D9TE9C485AGA / ACL. Have no clue what it means. A guy told me it is a 79 motor.
Cargo Master
Joined: Mar 2008
Posts: 2,561
Likes: 206
From: Washington
It sounds like you have an older Carb,
You have 2 choices
1; restore the truck to 1986 EEC IV IGN system
You would need a carb like the one shown in the photos in post #16
Also do you have 3 vacuum/electric solenoid on the back of the valve cover? Or is the valve cover off the 1979 engine?
2; Start collect parts to convert it back to a Duraspark 2 system.
The lack of power is due to no advance in the timing, you are running at 10 deg BTDC all the time.
Jim
You have 2 choices
1; restore the truck to 1986 EEC IV IGN system
You would need a carb like the one shown in the photos in post #16
Also do you have 3 vacuum/electric solenoid on the back of the valve cover? Or is the valve cover off the 1979 engine?
2; Start collect parts to convert it back to a Duraspark 2 system.
The lack of power is due to no advance in the timing, you are running at 10 deg BTDC all the time.
Jim
Junior User
Joined: Dec 2009
Posts: 62
Likes: 0
From: St Louis Mo
It sounds like you have an older Carb,
You have 2 choices
1; restore the truck to 1986 EEC IV IGN system
You would need a carb like the one shown in the photos in post #16
Also do you have 3 vacuum/electric solenoid on the back of the valve cover? Or is the valve cover off the 1979 engine?
2; Start collect parts to convert it back to a Duraspark 2 system.
The lack of power is due to no advance in the timing, you are running at 10 deg BTDC all the time.
Jim
You have 2 choices
1; restore the truck to 1986 EEC IV IGN system
You would need a carb like the one shown in the photos in post #16
Also do you have 3 vacuum/electric solenoid on the back of the valve cover? Or is the valve cover off the 1979 engine?
2; Start collect parts to convert it back to a Duraspark 2 system.
The lack of power is due to no advance in the timing, you are running at 10 deg BTDC all the time.
Jim
Carb:
http://i285.photobucket.com/albums/l...rbPassside.jpg
Carb:
http://i285.photobucket.com/albums/l...CarbFront2.jpg
Carb
http://i285.photobucket.com/albums/l...DriveSide2.jpg
Dist:
http://i285.photobucket.com/albums/l...Stuff/Dist.jpg
Dist:
http://i285.photobucket.com/albums/l...tuff/Dist2.jpg
Motor Number:
http://i285.photobucket.com/albums/l...otornumber.jpg
Cargo Master
Joined: Mar 2008
Posts: 2,561
Likes: 206
From: Washington
The carb looks like an early 80 Carb.
Does the large black cap (choke) have a wire out of the middle of it? Is the wire connected to anything?
The HOT AIR (choke stove) assist part of the choke is not connected up, do you live in cold weather or warm year around?
The choke is shown in the open position in the photos.
Jim
Still need a photo of the back half of the valve cover, aft of the sticker in the one photo.
Does the large black cap (choke) have a wire out of the middle of it? Is the wire connected to anything?
The HOT AIR (choke stove) assist part of the choke is not connected up, do you live in cold weather or warm year around?
The choke is shown in the open position in the photos.
Jim
Still need a photo of the back half of the valve cover, aft of the sticker in the one photo.
Junior User
Joined: Dec 2009
Posts: 62
Likes: 0
From: St Louis Mo
The carb looks like an early 80 Carb.
Does the large black cap (choke) have a wire out of the middle of it? Is the wire connected to anything?
The HOT AIR (choke stove) assist part of the choke is not connected up, do you live in cold weather or warm year around?
The choke is shown in the open position in the photos.
Jim
Still need a photo of the back half of the valve cover, aft of the sticker in the one photo.
Does the large black cap (choke) have a wire out of the middle of it? Is the wire connected to anything?
The HOT AIR (choke stove) assist part of the choke is not connected up, do you live in cold weather or warm year around?
The choke is shown in the open position in the photos.
Jim
Still need a photo of the back half of the valve cover, aft of the sticker in the one photo.
It did not have the choke stove anywhere. I have the port pluged. Don't even know where to hook it up to after the carb anyway. Got to get one.
It's a Manual choke no place for a wire.
Carb number is: ND 1507
Nothing on back of Valve cover.
Cargo Master
Joined: Mar 2008
Posts: 2,561
Likes: 206
From: Washington
I live in Missouri, Right now it's very cold!
It did not have the choke stove anywhere. I have the port pluged. Don't even know where to hook it up to after the carb anyway. Got to get one.
It's a Manual choke no place for a wire.
Carb number is: ND 1507
Nothing on back of Valve cover.
It did not have the choke stove anywhere. I have the port pluged. Don't even know where to hook it up to after the carb anyway. Got to get one.
It's a Manual choke no place for a wire.
Carb number is: ND 1507
Nothing on back of Valve cover.
The valve cover must be off the 79, thought so due to the sticker.
Due to the missing EEC IV parts and no place to mount then (valve cover) I would say DS2 is the only choice.
Do you still have, or can you get the old Dist. from the 79?
That is the only most expensive item for the DS2 conversion.
Jim
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Junior User
Joined: Dec 2009
Posts: 62
Likes: 0
From: St Louis Mo
http://i285.photobucket.com/albums/l...f/IMG_1701.jpg
I don't have half the stuff it says I should hook up for vacume.
Junior User
Joined: Dec 2009
Posts: 62
Likes: 0
From: St Louis Mo
If it is a Manual Choke I would not worry about the choke stove connections.
The valve cover must be off the 79, thought so due to the sticker.
Due to the missing EEC IV parts and no place to mount then (valve cover) I would say DS2 is the only choice.
Do you still have, or can you get the old Dist. from the 79?
That is the only most expensive item for the DS2 conversion.
Jim
The valve cover must be off the 79, thought so due to the sticker.
Due to the missing EEC IV parts and no place to mount then (valve cover) I would say DS2 is the only choice.
Do you still have, or can you get the old Dist. from the 79?
That is the only most expensive item for the DS2 conversion.
Jim
Hell I'll go by a dist if I have too! I would like this to run as good as possible. Motor is super strong I can tell, don't smoke, no knocks, just going up hills has NO NO NO power at all and eats gas miserably!
The DS 2 Dist.? That is the one with the vacume advance right? One vacmum line?? Is that how it will be listed?
I have 2 coils. One square and one barrel type. It is hooked up to the square one now. Should I use that again?
Cargo Master
Joined: Mar 2008
Posts: 2,561
Likes: 206
From: Washington
The DS 2 Dist.? That is the one with the vacume advance right? One vacmum line?? Is that how it will be listed? YES
The round coil (barrel) is the coil that matches the DS2 module. I would use it, the coil wire is different.
My IGN system is about as miss-matched as it could be, but under $80.
<O
</O<O
</ODS2 Dist (Bought New)<O
</OGM 4 pin module, used junk yard.<O
</O<O
</OThe above collection of miss-matched parts is cuz I am as cheap as they come.
<O
</O<O
</OAt this point I am planning on keeping the feedback Carb I have installed on the truck. It is a Feedback carb off an 84 I think but never did really figure it out for sure.<O
</O<O
</OI do plan on adjusting the metering rod for leaner operation, starting with a half a turn counter clock wise (leaner) and run it for a while to get some feedback from the O2 sensor. <O
</OI also have built a pulse width modulated signal generator to use as a mixture control adjustment to fine tune the carb while cruising down the highway. I will give it a try in the spring.
Jim
Junior User
Joined: Dec 2009
Posts: 62
Likes: 0
From: St Louis Mo
THANKS
The Dist. in the photo is off the 86 engine.
The DS 2 Dist.? That is the one with the vacume advance right? One vacmum line?? Is that how it will be listed? YES
The round coil (barrel) is the coil that matches the DS2 module. I would use it, the coil wire is different.
My IGN system is about as miss-matched as it could be, but under $80.
<O</O
<O</O
DS2 Dist (Bought New)<O</O
GM 4 pin module, used junk yard.<O</O
<O</O
The above collection of miss-matched parts is cuz I am as cheap as they come.
Meeeeee too!!
<O</O
<O</O
At this point I am planning on keeping the feedback Carb I have installed on the truck. It is a Feedback carb off an 84 I think but never did really figure it out for sure.<O</O
<O</O
I do plan on adjusting the metering rod for leaner operation, starting with a half a turn counter clock wise (leaner) and run it for a while to get some feedback from the O2 sensor. <O</O
I also have built a pulse width modulated signal generator to use as a mixture control adjustment to fine tune the carb while cruising down the highway. I will give it a try in the spring.
Jim
The DS 2 Dist.? That is the one with the vacume advance right? One vacmum line?? Is that how it will be listed? YES
The round coil (barrel) is the coil that matches the DS2 module. I would use it, the coil wire is different.
My IGN system is about as miss-matched as it could be, but under $80.
<O
</O<O
</ODS2 Dist (Bought New)<O
</OGM 4 pin module, used junk yard.<O
</O<O
</OThe above collection of miss-matched parts is cuz I am as cheap as they come.
Meeeeee too!!
<O
</O<O
</OAt this point I am planning on keeping the feedback Carb I have installed on the truck. It is a Feedback carb off an 84 I think but never did really figure it out for sure.<O
</O<O
</OI do plan on adjusting the metering rod for leaner operation, starting with a half a turn counter clock wise (leaner) and run it for a while to get some feedback from the O2 sensor. <O
</OI also have built a pulse width modulated signal generator to use as a mixture control adjustment to fine tune the carb while cruising down the highway. I will give it a try in the spring.
Jim
I have been hitting my head on the wall for months because I know nothing about this stuff. I got the truck running by trial and error and some common sense. It was a naked motor, NOTHING was hooked up.
I knew something was wrong just didn't know what.
I will change the Dist. to the DS2 with vacume advance. Maybe I will get some power on the hwy with this change.
Thanks again.
Cargo Master
Joined: Mar 2008
Posts: 2,561
Likes: 206
From: Washington
<O
</OI removed them; you will remove a lot of stuff with the DS2 conversion. My wife came out and looked at the truck while I was pulling out the engine computer harness out… she gave me the LOOK… the look that says it will never run again… or maybe … what have you done!!!
<O
</O<O
</OI put a blocking plate under my EGR valve, it is just dead weight now.
Jim
Junior User
Joined: Dec 2009
Posts: 62
Likes: 0
From: St Louis Mo
They are electrically operated solenoids, controlled by the computer to direct vacuum to emissions stuff, like the EGR.
<O</O
I removed them; you will remove a lot of stuff with the DS2 conversion. My wife came out and looked at the truck while I was pulling out the engine computer harness out… she gave me the LOOK… the look that says it will never run again… or maybe … what have you done!!!
<O</O
<O</O
I put a blocking plate under my EGR valve, it is just dead weight now.
Jim
<O
</OI removed them; you will remove a lot of stuff with the DS2 conversion. My wife came out and looked at the truck while I was pulling out the engine computer harness out… she gave me the LOOK… the look that says it will never run again… or maybe … what have you done!!!
<O
</O<O
</OI put a blocking plate under my EGR valve, it is just dead weight now.
Jim
http://i285.photobucket.com/albums/l...f/IMG_1705.jpg
So I too can get rid of this mess too?
The wiring in the truck is a complete mess with lots of things un hooked.
http://i285.photobucket.com/albums/l...ff/VoltReg.jpg
[URL]http://i285.photobucket.com/albums/ll77/rlheim/Ford%20Stuff/WireMess2.jpg
<a href="http://s285.photobucket.com/albums/ll77/rlheim/Ford%20Stuff/?action=view¤t=Squarecoil2.jpg" target="_blank"><img src="http://i285.photobucket.com/albums/ll77/rlheim/Ford%20Stuff/Squarecoil2.jpg" border="0" alt="Photobucket"></a>
What a mess I have here. But the damn thing runs!
As you can see I have some future questions coming!
Rick
Last edited by rlheim; Jan 4, 2010 at 10:26 PM. Reason: Broken links