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Trouble on ignition street

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Bri892001 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bri892001 Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 1:01pm
Originally posted by Big Pappa Big Pappa wrote:

...If I wiggle the key a little as I am cranking I can get a spark here and there but it is not something that is repeatable.

So is it sounding like mallory E spark time or is there anything else to try?


Just to to look at the simple stuff first: You are sure you are getting consistent voltage from your key switch. That is, when it's in the on position, you are always getting voltage, right?

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Post Options Post Options   Thanks (0) Thanks(0)   Quote mark c Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 2:04pm
Originally posted by boat dr boat dr wrote:

Originally posted by Big Pappa Big Pappa wrote:



So is it sounding like mallory E spark time or is there anything else to try?


Your module is toast, if you replace with a Mallory E Spark , the ballast and solenoid will be used. Normal run voltage at coil is 9/10 volts, while crank voltage , thru the solenoid will increase to a full 12 volts at the coil for crank only.

CorrectCraftParts{ 318-299-8547} has a Mallory conversion for you Prestolite.


How does the coil get 12v during cranking, if I don't have a clue, and boats don't have a connection between the starter solenoid and the ignition coils + terminal?   You sugesting he buy a solenoid, and or install the wiring that boats don't have to get a full 12V to the coil for starting?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TRBenj Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 2:13pm
Originally posted by mark c mark c wrote:

Originally posted by boat dr boat dr wrote:

Originally posted by Big Pappa Big Pappa wrote:



So is it sounding like mallory E spark time or is there anything else to try?


Your module is toast, if you replace with a Mallory E Spark , the ballast and solenoid will be used. Normal run voltage at coil is 9/10 volts, while crank voltage , thru the solenoid will increase to a full 12 volts at the coil for crank only.

CorrectCraftParts{ 318-299-8547} has a Mallory conversion for you Prestolite.


How does the coil get 12v during cranking, if I don't have a clue, and boats don't have a connection between the starter solenoid and the ignition coils + terminal?   You sugesting he buy a solenoid, and or install the wiring that boats don't have to get a full 12V to the coil for starting?

No one ever said that boats dont utilize the I terminal on the solenoid to give a full +12v to the coil during cranking. It was stated that not all marinization companies used it. PCM didnt, but Indmar did, for example.

The Dr's suggestion here is to utilize the feature when installing the Mallory Espark kit on a PCM motor.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mark c Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 2:17pm
Go back to the post above the original suggestion to install one, I said not all, but some do have this feature and I got a you don't have a clue reply. so either i don't have a clue that some had it and some don't or I don't have a clue about, why and when they were used in the automotive industry.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TRBenj Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 2:25pm
Im not going to speak to that particular comment, but its true that PCM did not use the feature, and it shouldnt be required with the stock (points) set up, nor would it have been used with Big's current Prestolite EI conversion.

The Mallory would be a different story.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Big Pappa Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 2:29pm
Originally posted by Bri892001 Bri892001 wrote:

Originally posted by Big Pappa Big Pappa wrote:

...If I wiggle the key a little as I am cranking I can get a spark here and there but it is not something that is repeatable.

So is it sounding like mallory E spark time or is there anything else to try?


Just to to look at the simple stuff first: You are sure you are getting consistent voltage from your key switch. That is, when it's in the on position, you are always getting voltage, right?



Yes that is correct, when the key is on I have voltage.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Big Pappa Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 2:53pm
Originally posted by SNobsessed SNobsessed wrote:

Kris - You can get a replacement module if you want to stay with this dizzy:

Module

PS here is a tip from that site-
Most non-spark issues are a result of improper air gap between trigger wheel "teeth" (high point of trigger wheel) and the face of the sensor (pick up), gap must be between .008" to .010", use a non-magnetic feeler gauge. Tighten the sensor retaining screw to 3 to 5 inch pounds of torque.


Woo Hoo This tip did it!!! I just went down and checked my air gap and it was way off. I reset it to .009" and checked the spark from the coil and it was perfect blue spark. Hooked everything back up and gave the key a turn and got a little blip. 2nd turn and it fired right up. Can you all see the grin on my face through the computer screen!!    This was just firing on starter fluid (working at home and did not want to smell like gas). I will pour some gas down the carb this afternoon and let it run for a bit. I am pumped right now though!!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bri892001 Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 3:25pm
Awesome, that's good to hear
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 4:14pm
Kris


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Keep it original, Pete
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Post Options Post Options   Thanks (0) Thanks(0)   Quote boat dr Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 4:29pm
[QUOTE=mark c] . so either i don't have a clue that some had it and some don't or I don't have a clue

We are working on a 'MARINE IGNITION" not an auto. Please post with known info and not your own idea how stuff works. Very litle info from auto,s apply to marine ignition systems.
The Prestolite EI uses no ballast , Mallory chose to incorporate this lower voltage to keep down heat inside the module, while using the "I" term. on the starter solenoid for that extra voltage, 12 volts to the coil, only during cranking.
The lower voltage will increase the service life of said EI module. This will also work for the OEM Prestolite module as well.Both Presolite and the Petronix have a high failure rate due to the increased voltage applied.
This being said, the Mallory will come with instructions of how to properly wire the newer , Mallory,module and the use of a ballast and the solenoid connection to complete the upgrade...Billy
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mark c Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 5:03pm
You are of course kidding. The basics of an internal combustion engine operation is the same wether said engine is in a boat, car, or airplane. Sure, there different peices and parts that make the engine operate correctly in the vehicle its installed in, but they all work the same way.

You will notice I said he could connect the coil to the aux contact on the starter solenoid (the "I" terminal) and it would provide full battery volatge during cranking but revert back to the balast resistor as soon as the key was released to run. Where do you think these ignition systems come from the marine world or automotive world? And of course you always follow the manufacturers installation instructions when you put any part on.

Doesn't really matter in this case, his module wasn't fried, and it did not need 12v during cranking to operate, it was an out of adjustment magnetic pickup.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote boat dr Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 6:05pm
Glad you found our site, we will all be smarter now that you are here.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bri892001 Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 6:22pm
Learn some things, explain some things. Bust some balls and get your balls busted.

That's why we're all here, right
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mark c Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 8:23pm
Originally posted by boat dr boat dr wrote:

Glad you found our site, we will all be smarter now that you are here.


I do try to do my part.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mark c Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 8:24pm
Originally posted by boat dr boat dr wrote:

Glad you found our site, we will all be smarter now that you are here.


I do try to do my part.   
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: July-12-2012 at 8:53pm
Originally posted by mark c mark c wrote:

Originally posted by boat dr boat dr wrote:

Glad you found our site, we will all be smarter now that you are here.


I do try to do my part.   

And double post as well!!


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