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40 9n gharging ign system

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ray

05-23-2004 16:19:55




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do I need a resitor since I changed the coil to 12 volt .I just got it and do not know if old coil was 6 or 12 volt .also my alt. has three terminals BATT, 1&2 is 2 the one that needs to be "tickled"&1 connected to BATT along with pos side of batt. or if pos ground then to the neg. side of batt. Lot more I don't know but this will do for now. Thanks ray




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RAy

05-23-2004 22:28:23




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 Re: 40 9n gharging ign system in reply to ray, 05-23-2004 16:19:55  
sorry for lack of imfo.,owened tractor two days .I ran it a while then it died. was told it was a 1940 9n .It already had a 12 volt system on it .checked plugs for spark ,none.I pulled the distributer & ck'ed points ,cleaned & set ck'ed resiter very hot ,but still showed continuity.I guessed coil was 6volt,replacing with new 12 volt,dist. &coil are front mount..Alt. has 3 terminals, Bat, 1 & 2 where do they go, it came with only one wire to the Bat. terminal,it ran but not long..

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Dell (WA)

05-24-2004 01:03:15




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 Re: Re: 40 9n gharging ign system in reply to RAy, 05-23-2004 22:28:23  
Ray..... ...generally speaking, iff'n yer 12 volt alternator is the deceptively desireable 1-wire, the P-1/P-2 slip-on terminals will be covered with a rubber plug. I don't like 1-wire alternators because you haffta jazz yer cold engine to 1800 rpms to start it charging. Once charging, it'll charge right down to 500 rpms idle speed. 3-wire alternators start charging at about 500 rpms.

The usual set-up for a 3-wire alternator is to tie the P-2 remote sense directly to the BIG BATT STUD. P-1 is called the switched excite from the ignition switch BUT CAUTION; you need to "isolate" the P-1 so the internal volts don't feedback to the ignition switch terminal that also has the coil "ON" wire 'cuz you'll never beable to turn yer engine off.

GM/Chevy uses an "idiot-lite" scheme to isolate the P-1 terminal. Many converters use a trailer clearance light with self-attached wires for the idiot light effect. You don't haffta mount the light so you can see it iff'n you don't want. This is only 1 of 7 ways that I know how to solve this problem so you can turn yer engine OFF.

Yes, yer RESISTOR is supposed to be HOT, burnie-burnie.

I'm gonna assume you realize that yer frontmount distributor points are best gapped 0.015" on yer kitchen table? New points are known to slip closed because the #8-32 x 3/16" screw threads imperceptively wear and won't hold. Ittza 2-bolt 15 minute finnagle to remove yer distributor which is driven by an "off-set tang" scheme so you can't re-installitt incorrectly outta time.

Also, gently stretch yer coil springy-thingy for more certain contact.

HTH..... ..Dell, a 12 volt advocate for the right reasons

That said, I haven't found the right reason for my eazy starting 6 volt '52 8N, and I know how to do it right the 1st-time.

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Texas Ford

05-23-2004 16:50:08




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 Re: 40 9n gharging ign system in reply to ray, 05-23-2004 16:19:55  
Well, Dell? How much more info do you need to set him straight? LOL LOL LOL.. generator? Altanator, 12volt, 6 volt?

Like the robot said on the ole movie,, More Input !! More Input!!!

Good luck...



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