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Ford 9N, 2N & 8N Discussion Forum

spark pluges (help!!!)

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02-21-2005 21:21:56

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im restoring a tractor (51" n8) fro my grandma before she passes away,.... i need to get a diagram or somebody tell me about which plugs go to which distributer buttons. that would be great. for a 51" n8. thanks a bunch!


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Dell (WA)

02-21-2005 22:16:36

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 Re: spark pluges (help!!!) in reply to cowgirl4sure, 02-21-2005 21:21:56  
Lisa..... ....iff'n yer 8N (only 8N's have 4-speed trannys) is really a '51, then you should have the sidemount 5-nipple crownhead sparkie cap and roundcan sparkie coil. Usually #1 is molded into the plastic by one of the nipples (usually about 10 o'clock, but could be ennywharr). Firing order is 1,2,4,3 CCW. sparkie #1 is front of the engine by the radiator.

Iff'n your distributor is the frontmount 4-nipple crabcap with squarecan sparkie coil ontop the distributor, then the firing order is still 1,2,4,3 CCW. That means:
sparkie #1 is connected to nipple #1 at 10 o'clock
sparkie #2 is connected to nipple #2 at 8 o'clock
Simple, eh? NOW PAY ATTENTION 'cuz it gitts tricky
sparkie #4 is connected to nipple #3 at 4 o'clock
sparkie #3 is connected to nipple #4 at 2 o'clock
therefore firing order is 1,2,4,3 CCW, isn't that amazing?

The frontmount N-Engine was used from 1939 to mid-1950 but is interchangeable with the latter 1950-52 sidemount N-Engine..... .....HTH, Dell yer self-appointed sparkie-meister

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02-21-2005 21:58:50

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 Re: spark pluges (help!!!) in reply to cowgirl4sure, 02-21-2005 21:21:56  
Getting a manual is good advice, but this previous thread will answer your question!

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02-21-2005 22:09:53

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 Re: spark pluges (help!!!) in reply to Bob, 02-21-2005 21:58:50  
OOOPS, if your tractor is really a 1951, it will have the distributor mounted off to the right front side of the engine (tractors after serial #263844). Firing order will be the same, but the arrangement of the wires in the distributor cap may vary, if someone has has the distributor out, and replaced it in a non-standard position.

Email me if you'd like a scan of the digram for the side-mount wiring emailed to you, or perhaps someone will post it.

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02-21-2005 21:39:02

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 Re: spark pluges (help!!!) in reply to cowgirl4sure, 02-21-2005 21:21:56  
The best thing to do is get the FO 4 book from the local Ford Dealer, about $22, then watch this site and the articles on the left side. Usually the guys here know what they are talking about. Just helped me do a tuneup, and usually I can only do 2 things to cars, fill em up, and tow em in. Good Luck...

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