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1970 Torino no spark

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Jontorino View Drop Down
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    Posted: 17-May-2015 at 11:08PM
Hi, I have recently buy a 1970 Ford Torino with a stock 302. The problem I have is that in the four cylinders of the left i have no Spark. I have test the wires with a tachometer and they don´t have any voltage. Don´t know what it could be. Thank you for uour replies!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Big Bird Quote  Post ReplyReply Direct Link To This Post Posted: 18-May-2015 at 1:50PM
You only get spark in the cylinders on the right? Check for spark at your distributor cap, look inside and see if the contacts are corroded. Weird that it's only one side.
"What we do in full frontal view, is more honest than your cleaned-up mind."
Randy
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How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 75GranMan Quote  Post ReplyReply Direct Link To This Post Posted: 18-May-2015 at 1:54PM
I believe you may have tested the wires for resistance with an ohm meter? I'm guessing that you may have a faulty set of spark plug wires. First thing I would do is remove a spark plug wire and hold it close to an engine ground while cranking the engine over. if you see spark jump to ground you have spark on the wire.if no spark, try spraying the wire with WD40 and rechecking for spark again,if spark is present after spraying with WD40, your plug wires are faulty.
John 75Gran Torino 4spd
Tighten it down until it snaps and then back it off a half turn!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rough_72 Quote  Post ReplyReply Direct Link To This Post Posted: 18-May-2015 at 2:00PM
Just couriouse 75granman how does spraying them with wd40 do?? I have never heard this test....... Make sure wires are all the way pushed on to the plugs. I've had some that feel like they are pushed on but they are not on.
AJ McKenna
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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 18-May-2015 at 2:21PM
have a neighbor that you don't like, hold onto the end of the wire while cranking the engine, if he jumps and starts cussing, you have spark! LOLLOLWink

sounds like bad plug wires, but all 4 on the same side??? check the cap too, that is strange!!!
JOHN
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jontorino Quote  Post ReplyReply Direct Link To This Post Posted: 18-May-2015 at 9:30PM
Today I am going to open the distributor to check inside...
I don´t know how to check the resistance, I check it with a manual tachometer, put in eache wire in the tach... the four wires on the pilot side didn´t make any signal.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jccpd Quote  Post ReplyReply Direct Link To This Post Posted: 19-May-2015 at 8:51AM
How could it be all on one side? I could kinda see if half of the cap was not touching the rotor, but the firing order is relatively random (1-5-4-2-6-3-7-8-?) so it would have to be skipping specific ones to have one half of the engine not firing.
 
I agree with some of the above that it is more likely the wires (but why on one side?) or in fact they are all firing but the author is not reading the meter right.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jccpd Quote  Post ReplyReply Direct Link To This Post Posted: 19-May-2015 at 8:52AM
Is the car actually running? With four cylinders out, it should not be running.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jontorino Quote  Post ReplyReply Direct Link To This Post Posted: 19-May-2015 at 9:24PM
Well yesterday I check every wire with a timing light and all of them had spark. Probably the tachometer I used was bad.

The problem I have is that the car starts and idles right, but runs rough. It starts doing this few days ago, I have run well with the car until last week. Can it be the condenser or the points? I have no touch the distributor, so I supose the timing is good.
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Post Options Post Options   Thanks (1) Thanks(1)   Quote 75GranMan Quote  Post ReplyReply Direct Link To This Post Posted: 20-May-2015 at 1:36PM
possible jumped timing chain. The original plastic style cam gears would start to fall apart allowing the chain to jump. check timing chain play and check the cam timing first.
John 75Gran Torino 4spd
Tighten it down until it snaps and then back it off a half turn!
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Big Bird Quote  Post ReplyReply Direct Link To This Post Posted: 20-May-2015 at 3:04PM
Start with the basics. Check cap and rotor, points and condenser, plugs and wires. Check the ground wire and battery terminals for corrosion and good contact.
"What we do in full frontal view, is more honest than your cleaned-up mind."
Randy
1979 T-Bird
2005 F-150 STX RCSB 4.6, 3.55 LSD
How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds?
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