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03-22-07, 12:35 PM
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#1 (permalink)
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Forum Regular
Join Date: Apr 2005
Location: Minneapolis, MN
Posts: 62
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Dizzy change, ignition coil too?
I just got a 76 dizzy w/ vacuum advance, an upgrade from a 9/72 with retard. My question is SOR says that if you buy their non-USA dizzy (retard to advance) that you need to upgrade your coil. Does this apply to this 76 dizzy? Will I need a coil from a 76 or can I just hook it all up as is? I think I should be fine, but just making sure. Also how important is it to change the clamp?
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73 FJ40 rusting as we speak
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03-22-07, 01:46 PM
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#2 (permalink)
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Site Addict
Join Date: Jul 2004
Location: Denver, CO, USA
Posts: 1,461
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I personally would put a new coil in place. If the coil is a Toyota, it should fit the clamp ok. Remember, the clamp is to be grounded to the block, fender and firewall for optimum ignition. The older coil may not be designed for 12 volts and require a "ballast" resistor (0.8 ohm); which would be eqpt on a 1972 FJ40. Oddly enough, my old stock coil on my 1980 [90919-02083] is labeled "use with external resistor"; which I don't have.
My system is a mallory points distributor with Jacobs computer system and coil.
Never hurts to have a few extra ignition parts around.
Tech information:
http://www.ih8mud.com/cruisertech.php
Dist info:
http://www.ih8mud.com/tech/dist.php
http://www.rzeppa.org/tech/jimcdist.htm
...
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D.F.Morse
1994 FZJ80 Kazumatized 74000 mi
1979 FJ-40 74000 mi
Here endith the lesson
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03-22-07, 10:17 PM
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#3 (permalink)
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Forum Regular
Join Date: Apr 2005
Location: Minneapolis, MN
Posts: 62
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I guess my question is now: What coil? and do I just need the coil or do I need the whole set up from a 76-77?
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73 FJ40 rusting as we speak
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03-23-07, 12:43 AM
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#4 (permalink)
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elder statesman
Join Date: Apr 2004
Location: so cal, going 45
Posts: 8,309
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Do you have a picture of the distributor? it might help.
SOR generally sells an 'early' vacuum advance dizzy, which is the same kind Downey and I sell as well.
Those distributors will work fine with your stock 72 coil.
Best
Mark A.
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A carbureted man in a fuel injected world.
65SWB45, 64LWB45, 68FJ40,72V840, 76HJ45[gone],84FJ60[gone], 76K5, 73Sub454, 97Sub5.7, 2002 Trailblazer
TLCA delegate, Trail Crew-LAC TLCA, The White Trash of the Elwood Chapter
my website:
http://www.marksoffroad.net
IT'S FASTER if you CALL ME!
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03-24-07, 12:21 PM
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#5 (permalink)
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Forum Regular
Join Date: Apr 2005
Location: Minneapolis, MN
Posts: 62
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Heres a picture
It's a late 76, other then that the part number is 2F in one box and 2U2 4 in the other.
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73 FJ40 rusting as we speak
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03-24-07, 12:53 PM
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#6 (permalink)
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Site Addict
Join Date: Jul 2004
Location: Denver, CO, USA
Posts: 1,461
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This is the coil I'm using; been in service many years.
http://www.jacobselectronics.com/
http://go.mrgasket.com/pdf/jacobs_coils[1].pdf
Energy Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . #380672T
__________________
D.F.Morse
1994 FZJ80 Kazumatized 74000 mi
1979 FJ-40 74000 mi
Here endith the lesson
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03-24-07, 12:56 PM
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#7 (permalink)
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Cruiser Curmudgeon
Join Date: Sep 2003
Location: Lancaster, Ohio, USA
Posts: 4,356
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Quote:
Originally Posted by Tatunka
Heres a picture
It's a late 76, other then that the part number is 2F in one box and 2U2 4 in the other. |
What makes it a late '76? 
__________________
Thanks,
Jim C.
TLC Performance
Underhood Janitor, cleaning up other people's  since 1988.
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03-24-07, 02:28 PM
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#8 (permalink)
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Forum Regular
Join Date: Apr 2005
Location: Minneapolis, MN
Posts: 62
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You...
"75 & early 76: small distributor, completely redesigned, very good quality points distributor. Vacuum retard.
Late '76 &77: Same, but w/ vac advance" -JimC
http://www.ih8mud.com/tech/dist.php
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73 FJ40 rusting as we speak
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03-25-07, 03:01 PM
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#9 (permalink)
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Cruiser Curmudgeon
Join Date: Sep 2003
Location: Lancaster, Ohio, USA
Posts: 4,356
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That looks like the 74-earlier style dissy.
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Thanks,
Jim C.
TLC Performance
Underhood Janitor, cleaning up other people's since 1988.
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03-25-07, 03:59 PM
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#10 (permalink)
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Forum Regular
Join Date: Apr 2005
Location: Minneapolis, MN
Posts: 62
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The reason I thought that it was a 76 was the person I bought it from said it came off of his 76 2F. If it is something different please tell me as I am not well versed in distributor types, which is why I am glad to see you (JimC) taking a look. It is for a 2F, but maybe non-USA? I can get part #"s if needed. Thanks for taking the time.
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73 FJ40 rusting as we speak
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03-25-07, 04:03 PM
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#11 (permalink)
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250+ Club
Join Date: Oct 2006
Location: Tucson
Posts: 471
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That could be a 69 vacuum advance just like the one that came off mine.
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Where am I, and who are these people????
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03-25-07, 05:46 PM
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#12 (permalink)
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Forum Lifer
Join Date: Feb 2002
Location: OC, CA
Posts: 6,531
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The coil you have will work fine if it worked with the old distributor. If it has a ballast resistor, use it; if not don't.
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03-25-07, 07:25 PM
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#13 (permalink)
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Forum Regular
Join Date: Apr 2005
Location: Minneapolis, MN
Posts: 62
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 WTF, thats what I get for not asking you guys what it was before I bought it. Well at least it's vac advance, that's what I was looking for. Thanks for asking all my questions. So with this information (year of dizzy) I should just leave everything just how it was and install this dizzy, right?
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73 FJ40 rusting as we speak
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