Go Back   The Ford Barn > General Discussion > Model T (1909-1927)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 09-26-2019, 06:41 AM   #1
dumb person
Senior Member
 
dumb person's Avatar
 
Join Date: Apr 2011
Location: South pacific island
Posts: 1,576
Default Home made electronic timer. A D.I.Y. at home.

So I heard you think i'm dumb or something....

Oh ok.



Freshest scrap metal & broken 1990s TV parts the region had to offer.



Electronic ignition might be pointless but seems like a fun hobby.
It fits in the same place as the original timer. And i can plug a laptop into it to give it a different tune or run diagnostics.



Don't need points on the coils. Most of those coils probably never had points on them in my lifetime. Removed capacitors to save weight.



Big sparks.

https://www.youtube.com/watch?v=onQO9h5A83M

Bonus video for anyone who wants to watch some badly lit & filmed tinkering.
Attached Images
File Type: jpg HomeBrewElectronicTImer.jpg (30.7 KB, 136 views)
File Type: jpg Timer, old versus new.JPG (27.7 KB, 130 views)
File Type: jpg Home made time installed.jpg (51.5 KB, 130 views)
File Type: jpg big sparks.jpg (24.0 KB, 130 views)
__________________
<Link> This is how we roll<Link>

"I'm Convinced that no one really reads posts anymore; they just fabricate what they think the post says then ramble on about red herrings."--Bob
Outcasts rules of old cars
#1 Fun is imperative, mainstream is overrated
#2 If they think it is impossible, prove them wrong
#3 If the science says it impossible you are not being creative enough.
#4 No shame in recreating something you never had
#5 If it were not for the law & physics you would be unstoppable
dumb person is offline   Reply With Quote
Old 09-26-2019, 09:11 AM   #2
rotorwrench
Senior Member
 
rotorwrench's Avatar
 
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 10,304
Default Re: Home made electronic timer. A D.I.Y. at home.

Since most systems are designed to replace ignition breaker points, I have to assume that this system is different since there is no one set of breaker points to replace for a Model T. Do the coils still function or does it use a single ignition coil?

Aircraft ignition systems for the most part, use either a TCM/Bendix shower of sparks starting aid or they use the electronic Champion/Slick ignition booster that performs the same general function. These throw a shower of sparks in the combustion chamber that is generated through a retarded set of points in one or both magnetos. They work a lot like the model T system except that they are only used for starting the engine.

Last edited by rotorwrench; 09-26-2019 at 09:17 AM.
rotorwrench is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 09-26-2019, 02:25 PM   #3
dumb person
Senior Member
 
dumb person's Avatar
 
Join Date: Apr 2011
Location: South pacific island
Posts: 1,576
Default Re: Home made electronic timer. A D.I.Y. at home.

Quote:
Originally Posted by rotorwrench View Post
Since most systems are designed to replace ignition breaker points, I have to assume that this system is different since there is no one set of breaker points to replace for a Model T. Do the coils still function or does it use a single ignition coil?
If you look closely you'll see the original coils but without their points, the wires were joined internally.
__________________
<Link> This is how we roll<Link>

"I'm Convinced that no one really reads posts anymore; they just fabricate what they think the post says then ramble on about red herrings."--Bob
Outcasts rules of old cars
#1 Fun is imperative, mainstream is overrated
#2 If they think it is impossible, prove them wrong
#3 If the science says it impossible you are not being creative enough.
#4 No shame in recreating something you never had
#5 If it were not for the law & physics you would be unstoppable
dumb person is offline   Reply With Quote
Old 09-26-2019, 06:22 PM   #4
rotorwrench
Senior Member
 
rotorwrench's Avatar
 
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 10,304
Default Re: Home made electronic timer. A D.I.Y. at home.

I noticed that and a jumper on the one that still had some of the points stuff on it but I wanted to be sure about what you were doing. I take it that each coil gets its turn depending on the position of the timer.
rotorwrench is offline   Reply With Quote
Old 09-26-2019, 09:40 PM   #5
daren007
Senior Member
 
Join Date: Apr 2015
Location: Saint Cloud Mn
Posts: 445
Default Re: Home made electronic timer. A D.I.Y. at home.

Removed capacitor's to save weight???
daren007 is offline   Reply With Quote
Old 09-30-2019, 04:25 AM   #6
dumb person
Senior Member
 
dumb person's Avatar
 
Join Date: Apr 2011
Location: South pacific island
Posts: 1,576
Default Re: Home made electronic timer. A D.I.Y. at home.

The increase in fuel efficiency (and full throttle pick-up) is impressive. It's like having a rebuilt magneto, but i didn't have to lift the engine or anything. Just swap a timer.

Quote:
Originally Posted by rotorwrench View Post
I noticed that and a jumper on the one that still had some of the points stuff on it but I wanted to be sure about what you were doing. I take it that each coil gets its turn depending on the position of the timer.
Yes.
I've patched up another 'junk' coil without points so now i have a full set.
__________________
<Link> This is how we roll<Link>

"I'm Convinced that no one really reads posts anymore; they just fabricate what they think the post says then ramble on about red herrings."--Bob
Outcasts rules of old cars
#1 Fun is imperative, mainstream is overrated
#2 If they think it is impossible, prove them wrong
#3 If the science says it impossible you are not being creative enough.
#4 No shame in recreating something you never had
#5 If it were not for the law & physics you would be unstoppable
dumb person is offline   Reply With Quote
Old 09-30-2019, 01:09 PM   #7
mhsprecher
Senior Member
 
mhsprecher's Avatar
 
Join Date: Aug 2012
Location: Takoma Park, MD
Posts: 2,219
Default Re: Home made electronic timer. A D.I.Y. at home.

I'm impressed and also have no clue what you did.
mhsprecher is offline   Reply With Quote
Old 10-01-2019, 08:50 AM   #8
rotorwrench
Senior Member
 
rotorwrench's Avatar
 
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 10,304
Default Re: Home made electronic timer. A D.I.Y. at home.

To induce a high tension voltage reaction out of the coil, a person needs a breaker to reverse the magnetic field in the core. An electronic ignition system requires an electronic breaker that fires the coil induction reaction. If it has a high rate breaker or an electronic vibrator for pulsating direct current then it can fire multiple sparks during the ignition process for each cylinder. I suppose it can work either way as long as the spark is hot enough to light off the fuel air mixture charge. It's not that different from a regular electronic ignition except that it has been adapted to the model T type 4 coil system. In that respect, it's a lot like the modern one coil per cylinder designs only it would still use a timer to fire them all at the right time.
rotorwrench is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 07:41 PM.