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> '75 1.8 914 No Start? Please help., No Spark
Bartlett 914
post Mar 25 2009, 04:22 PM
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It is your points that complete the circuit. When the points close, there is a ground to the coil. This charges tne coil (inductor). When the points open, the coil discharges a high voltage to the spark plug. Basic Kettering ignition.
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Maximum1302
post Mar 25 2009, 05:23 PM
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Okay so... why wont my car start...
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McMark
post Mar 25 2009, 07:25 PM
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If there is power to the coil, confirm that there is spark using a timing light.
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drive-ability
post Mar 25 2009, 09:27 PM
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I would wonder about everything, however since you have been cranking the engine a bit there should be a reasonable amount of fuel in the cylinders. Its sure not burning, so you should have a raw gas smell at least at the end of the tail pipe...
If you can't smell gas its not likely being delivered to the cylinders.. thus your points, coil etc isn't your problem. I say this because you don't have to know much about cars to check for a gas smell. I would take a minute to check this out and report back. (IMG:style_emoticons/default/shades.gif)
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Bartlett 914
post Mar 26 2009, 08:17 AM
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QUOTE(McMark @ Mar 25 2009, 07:25 PM) *

If there is power to the coil, confirm that there is spark using a timing light.

If you don't have a timing light, Use an old spark plug. Disconnect one plug wire from a cylinder and connect it to the spare plug (or remove a spark plug and use that one). Make sure the base of the plug is resting on a grounded surface. Have someone crank the engine and look for a spark.
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Rockaria
post Mar 26 2009, 09:23 AM
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I am sure someone has said this before.... But...

Check your points.

On my 75 1.8 if I turn the ignition switch so the radio comes on and leave it like that for a while, and the points are closed at the time, the points will be fried. Anytime I work on electricals in my 75 I always disconnect the power wire to the coil.

I hope this helps,
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jim_hoyland
post Mar 26 2009, 09:40 AM
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Yesterday I had a no-start situation on my 1975 1.8L The reason was one of the wires at the dual relay was not making contact==probably yellow. Pushed each of the wires into the base, made sure the base was snug, and PRRRRRRR; started right up.
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Maximum1302
post Mar 26 2009, 11:57 AM
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Wow thanks a lot guys!! Im off to work now, but when I get home Ill see what I can do with it. I might even have some pics of my 2.0 build!

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jim_hoyland
post Mar 26 2009, 04:33 PM
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Also, the '75 1.8 L-jet has the yellow wire jumped at the back of the relay board:


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Maximum1302
post Mar 28 2009, 12:21 AM
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lol! You guys... I got my whold ignition system ready to go... Im sure she should fire right up... but my keys went MIA!!! (IMG:style_emoticons/default/confused24.gif) Nothing is going my way right now... (IMG:style_emoticons/default/sad.gif) I hope you guys are having better luck with your cars! (IMG:style_emoticons/default/biggrin.gif)
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jim_hoyland
post Mar 28 2009, 08:22 AM
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One more thing: the 1.8 L Jet dual relay has a ground wire. If it is not connected, the relay will not work. It attached to a permanent clip on top/middle toward rear of motor.
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r_towle
post Mar 28 2009, 08:23 AM
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QUOTE(Maximum1302 @ Mar 23 2009, 09:28 PM) *

Well I have not checked terminal 15 for power, but the coil is good so should I still do it anyway? And the car has a regular distributor with points. And I checked for spark where the coil plugs into the dizzy, so Im pretty sure the coil isnt getting power.

If you have not checked that there is power to the coil, you can not know that the coil is good.

Rich
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Maximum1302
post Mar 29 2009, 12:37 PM
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(IMG:style_emoticons/default/driving.gif) I pass! Well after I messed with the relay board and got power to the coil, I replaced the whole distributor. Also when I tried to set the timing, all the marks had worn off the impeller... lol so I had to set it using the distributor drive gear (I dont think thats the proper name... but the place that it slides into. Anyway, it works great!
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jim_hoyland
post Mar 29 2009, 04:04 PM
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Good news (IMG:style_emoticons/default/smile.gif) . Now get a :


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Maximum1302
post Mar 29 2009, 04:30 PM
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HAHAHAHAHAHA!!! (IMG:style_emoticons/default/lol-2.gif) yeah no kidding right? Thanks for all the help on this thread!
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