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Ford 9N, 2N & 8N Discussion Forum
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Re: 51 Ford 8N

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Dell (WA)

06-21-2013 02:22:15

Report to Moderator late 1950, Ford changed from the weird 4-nipple frontmount dizzy to the more conventional 5-nipple sidemount. You can count nipples, can't you???

The weird 4-nipple dizzy has a 1-terminal squarecan ignition coil with insulative tar that melts after about 1-hr of running time. It takes about 4-hrs of cool-down or overnite for the tar to re-solidify so you can run again fer about 1-hr. Unfortunately, there is NO eazy cure for this problem. Many desperate frontmount owners "hogg-outt" the squarecan coil and wire in the more reliable roundcan coil. Remember, the squarecan coil NEEDS the MANDATORY "infamous ballast resistor" (mounted on the dash underneath the ammeter) Many N-owners "by-pass" this resistor for hotter sparkies and eazier starting. But guess what, that also causes the insulative tar to melt and makes weaker sparkies. DON'T DO IT.

Remember ittza 2-bolt, 15-min job to remove the frontmount dizzy and change the points (0.015") on the kitchen table. Just un-snapple yer capple and walk. Installation is a reversal of the removal ...except... finger start the 2-bolts and then install the rotor. Now rotate the rotor until the OFFSET drive tang fits the OFFSET camshaft drive slot. Now tighten the 2-bolts and re-snapple yer capple and yer good to go. Simple, eh?

Remember to POLISH the INVISIBLE CORROSION from between the points (0.015") after installation. Me? I clamp a $1-bill between the points and pull. Iff'n yer really cheap, tear a strip from HEAVY brown paper grocery sack and use that. ........HTH, Dell, yer self-appointed sparkie-meister

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36 coupe

06-26-2013 04:04:25

Report to Moderator
 Re: 51 Ford 8N in reply to Dell (WA), 06-21-2013 02:22:15  
Dell, forget the insulative tar bit.Wire used to wind coils and motors has a coating on it.One is called Formvar.After a motor is wound it is dipped in formvar and baked.It is said that a motor winding would vibrate and destroy the coating.The tar or pitch was put inside the Ford coils to keep the windings from moving around and shorting the turns.Epoxy is used now in china made coils.

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