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-   -   Short Spark Plug Connection ? (https://www.fordbarn.com/forum/showthread.php?t=41362)

marc hildebrant 07-05-2011 08:57 AM

Short Spark Plug Connection ?
 

Group,

The number 4 spark plug (closest to the rear) gets it's spark from the distributor using the original style flat metal wires.

While the 1,2,and 3 wires connect fine to the distributor, the number 4 is not long enough to have the wire "bottom out" on the distributor post...i.e. it needs to be longer.

Was this common for the Model A ? Is one wire longer than the others ?

It runs O.K., but it seems that the wire should be gripping the post better.

Marc

Tom Wesenberg 07-05-2011 09:04 AM

Re: Short Spark Plug Connection ?
 

I've seen the same thing. I wonder if the plugs sold today are a bit shorter, or if the bronze wires are a bit shorter? I use an original cap and leads and the #4 is none too long, but as I recall it just barely made it to the bottom of the U.

Patrick L. 07-05-2011 09:08 AM

Re: Short Spark Plug Connection ?
 

Huumm, I thought they were all the same length and you just bent them to fit.. Maybe some re-pro's are too short.. Can you swap one from another cylinder ,like 2 or 3, and make it fit..

1930artdeco 07-05-2011 02:09 PM

Re: Short Spark Plug Connection ?
 

Howabout the barbed wire that they guy in texas uses?

Mike

RcT 07-05-2011 02:13 PM

Re: Short Spark Plug Connection ?
 

I had the same problem with the brass repos... I believe either Snyder's or Bratton's sells longer "B" connectors. They look exactly the same, just about 3/8" longer.

Tom Wesenberg 07-06-2011 05:43 AM

Re: Short Spark Plug Connection ?
 

Quote:

Originally Posted by RcT (Post 234227)
I had the same problem with the brass repos... I believe either Snyder's or Bratton's sells longer "B" connectors. They look exactly the same, just about 3/8" longer.

Be sure to check the color of the connectors. Brass is more yellow and is NOT what you want to buy. Be sure to get the bronze straps, which have more spring to them and are more redish in color. Just use your fingers to put a couple of gentle bends into each strap.

John/CT 07-06-2011 05:36 PM

Re: Short Spark Plug Connection ?
 

Champion W18 and W16Y plugs are taller than Motorcraft plugs resulting in a shorter distance to the distributor terminals. The repro wires seem to cover the distance with the proper spring tension against the terminals when I use the Champion plugs.

John

CarlG 07-08-2011 11:38 AM

Re: Short Spark Plug Connection ?
 

Quote:

Originally Posted by Tom Wesenberg (Post 234601)
... Just use your fingers to put a couple of gentle bends into each strap.

Be sure to do this with the engine running so that you get it right the first time:D







NOT!

Steve Wastler 07-08-2011 11:45 AM

Re: Short Spark Plug Connection ?
 

Quote:

Originally Posted by CarlG (Post 235813)
Be sure to do this with the engine running so that you get it right the first time:D







NOT!

Not to highjack the thread, but I once met a man into hit and miss engines, when he threw out his hand for a shake, I was unaware he was holding the mag wire in the other hand. Dropped me to my knees when it fired. never figured out how he could hold the wire and transfer the hit to me. Watched him do this to a few people and it never effected him.

MrTube 07-08-2011 01:23 PM

Re: Short Spark Plug Connection ?
 

Quote:

Originally Posted by Steve Wastler (Post 235819)
Not to highjack the thread, but I once met a man into hit and miss engines, when he threw out his hand for a shake, I was unaware he was holding the mag wire in the other hand. Dropped me to my knees when it fired. never figured out how he could hold the wire and transfer the hit to me. Watched him do this to a few people and it never effected him.


Have to assume he was far better insulated from the vehicle than you. Perhaps he had very thick shoes on? With enough insulation \ isolation you won't feel anything. However if he was holding the wire in the other hand it would have effected him 100% as much as it did you when he grabbed your hand.

Have to guess you were either some how completing the circuit via the ground under you or you were touching the vehicle.

BAD game to play with strangers IMO. Could do instant damage to a pacemaker or who knows what to someone with a weak heart. Not too bright.

Steve Wastler 07-08-2011 05:33 PM

Re: Short Spark Plug Connection ?
 

This was probably 25 years ago, good young heart, I wasn't touching anything but the ground and his hand. Don't remember the shoes he was wearing, I most likely had on lug soled work boots, his engine was running and he didn't even twitch. He had on short sleeves and nothing in or connected to the hand I shook. I remember clearly, as is it was so funny to all the guys around...


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