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just bought a 1974 RX4 all original

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Old Aug 13, 2011 | 11:54 PM
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CO just bought a 1974 RX4 all original

i just pick up this 74 rx4.

im getting fuel but no spark at the coils. if anyone could help me out in the trouble shooting .
Attached Thumbnails just bought a 1974 RX4 all original-13b.jpg   just bought a 1974 RX4 all original-rx41.jpg   just bought a 1974 RX4 all original-rx42.jpg   just bought a 1974 RX4 all original-rx43.jpg   just bought a 1974 RX4 all original-rx45.jpg  

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Old Aug 14, 2011 | 12:02 AM
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hay q chekiar el coco de la inicion, avisame pa bregal con el aver si lo prendemos
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Old Aug 14, 2011 | 01:37 AM
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i need the front windshield , passenger fender and tail light
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Old Aug 14, 2011 | 12:15 PM
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Originally Posted by vrx8
hay q chekiar el coco de la inicion, avisame pa bregal con el aver si lo prendemos
i replace both coils but im not getting voltage to the coils at all.
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Old Aug 14, 2011 | 09:34 PM
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If I am not mistaken, I think the coils are powered from the ignition switch (thats how the glc was) Follow it backwards to the key, it has to be between the key and the coils. Hope this helps. Nice car btw...always been a fan of the rx4!
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Old Aug 14, 2011 | 09:56 PM
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Originally Posted by cfamilyfix
If I am not mistaken, I think the coils are powered from the ignition switch (thats how the glc was) Follow it backwards to the key, it has to be between the key and the coils. Hope this helps. Nice car btw...always been a fan of the rx4!
ohh ok so you think that may be the reason that sometimes it crank and sometimes doesnt do anything ?
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Old Aug 14, 2011 | 10:20 PM
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Nice find man I have been looking all over the springs for a old school Mazda rotary. Did you get it for the Springs or beyond?
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Old Aug 14, 2011 | 10:37 PM
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Originally Posted by zionfarm
Nice find man I have been looking all over the springs for a old school Mazda rotary. Did you get it for the Springs or beyond?
on denver craiglist. i just pcs to ft carson do you know any good body shop?
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Old Aug 14, 2011 | 10:38 PM
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Here is a 74 rx4 wiring diagram

http://dwiringdiagram.com/wp-content..._Mazda_RX4.pdf
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Old Aug 14, 2011 | 10:40 PM
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by looking at the diagram my guess will be a bad ignition relay.
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Old Aug 14, 2011 | 10:43 PM
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CO

Originally Posted by vrx8
bro thanks.
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Old Aug 14, 2011 | 11:41 PM
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Originally Posted by boriquaguerrero
ohh ok so you think that may be the reason that sometimes it crank and sometimes doesnt do anything ?
that would make sense too...
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Old Aug 14, 2011 | 11:53 PM
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Nice find, I hope your patient... unless your luckey you won't be able to find the parts u need in any quick manor. I been gathering bits and peices for mine for three years to finally get to starting point of the restoring process. Some stuff from Japan some from Austrailia . I will keep my eyes open for ya.
The car looks like it's worth saving.

J
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Old Aug 15, 2011 | 07:48 AM
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No ignition relay on a RX-4. That wiring diagram looks nothing like my Mazda diagrams. Try the manuals and diagrams here. My guess would be dirty or damaged contacts in the ignition switch or a loose connection between the trigger wire and the starter.

http://www.vintagerotaries.org/index.php?showtopic=38
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Old Aug 15, 2011 | 09:01 AM
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wow....very clean find..my fav. year/model rx-4
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Old Aug 15, 2011 | 10:00 AM
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If I am correct there should be a ballast resistor on those coils. Check to make sure that the resistor isn't bad.
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Old Aug 15, 2011 | 10:15 AM
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Finding a fender will be expensive, there are very few and they are worth alot of cash. I ended up getting my fenders fixed it was about 300-400 per fender



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Old Aug 15, 2011 | 10:34 PM
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good news the car runs !!!! thanks to everyone in this board!!!!!i also strip down all the interior.
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Old Aug 16, 2011 | 12:03 AM
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Nice find, your motor in the first gen is similar to what I have in my 74 RX4 now. I have been looking for a windshield for some time...if you find a extra one let me know and I will do the same. I was in the springs this weekend and was wondering where the rotaries were!
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Old Aug 16, 2011 | 11:03 AM
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Originally Posted by boriquaguerrero
on denver craiglist. i just pcs to ft carson do you know any good body shop?
Ok I saw that one, and welcome to Carson man. I just got back a month ago from deployment. And no I don't of any body shops around here sorry man.
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Old Aug 16, 2011 | 03:45 PM
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Look around and find a few that look like decent establishments, go in and talk to the manager and get a feel for him/her. Usually a body shop has a photo album of work they have done and dont hesitate to ask for a reference from someone who has had work done there before. From there you should be able to make a good decision on what shop to go with.
After looking at your pics it seems as though you have rust in the same spots I did. Check your frame all around the steering box. Water builds up there and seeps into the frame through the steering bolts. Pull the rocker stripping off and take a look at your rockers and torque boxes.
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