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prestolite electronic ignition conversion

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rhschnauss View Drop Down
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    Posted: June-27-2008 at 2:50am
any one have any advice when I change out my prestolite points with the prestolite electronic conversion. It says something about the gap between the magnet and pickup and also removing the ballast. should I bridge the wire across the ballast? or just delete it
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Post Options Post Options   Thanks (0) Thanks(0)   Quote nuttyskier2002 Quote  Post ReplyReply Direct Link To This Post Posted: June-27-2008 at 4:32am
Best advice for the conversion is to follow your instructions that came with the kit. If it says to bypass the ballast then remove it. But keep it on hand in case you have an issue with your new ignitor,.... cause you might want to re-install your points.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 79nautique Quote  Post ReplyReply Direct Link To This Post Posted: June-27-2008 at 10:49am
just put both wires on one post and call it a day.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tapenick Quote  Post ReplyReply Direct Link To This Post Posted: June-27-2008 at 10:40pm
Probably fine either way but I ran the power wire of the EI to the 'hot' side of the ballast resistor instead of bypassing completely... left the resistor inline for the power to the coil.

Tom
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tapenick Quote  Post ReplyReply Direct Link To This Post Posted: June-27-2008 at 10:42pm
Originally posted by rhschnauss rhschnauss wrote:

It says something about the gap between the magnet and pickup and


Gap should be .008 to .010


Tom
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TRBenj Quote  Post ReplyReply Direct Link To This Post Posted: June-28-2008 at 12:16am
Originally posted by tapenick tapenick wrote:

Probably fine either way but I ran the power wire of the EI to the 'hot' side of the ballast resistor instead of bypassing completely... left the resistor inline for the power to the coil.

Tom

Thats very creative wiring- Ive never heard of doing that before! FYI, the purpose of the ballast resistor would be to regulate the voltage at the points or ignition module- the full 12V wont bother the coil a bit. If your EI calls for bypassing the resistor, then bypass it! Your wiring scheme will simply reduce the voltage at your spark plugs, with no side benefits whatsoever.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tapenick Quote  Post ReplyReply Direct Link To This Post Posted: June-28-2008 at 4:10am
I thought some coils had internal resistors and some did not... hence the need.

But had also heard that it usually wouldn't hurt to run any of them without.



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Post Options Post Options   Thanks (0) Thanks(0)   Quote TRBenj Quote  Post ReplyReply Direct Link To This Post Posted: June-28-2008 at 12:09pm
Originally posted by tapenick tapenick wrote:

I thought some coils had internal resistors and some did not... hence the need.

But had also heard that it usually wouldn't hurt to run any of them without.

Thats correct- the coils with internal resistors did the same job as the ballast resistor- to regulate the voltage to the points or EI module. You wont damage anything running it the way it is, but its not a recommended set up and it certainly wont help anything either.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Luchog Quote  Post ReplyReply Direct Link To This Post Posted: June-29-2008 at 12:50am
I know this has been debated before but for some reason I still dont have it clear, what is the best EI kit I could get for my Prestolite? I have found 3, Prestolite, Pertronix and Mallory (at Summit)

The prestolite is certainly the most expensive. Wich one to go?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote boat dr Quote  Post ReplyReply Direct Link To This Post Posted: June-29-2008 at 1:28am
The new Mallory E-Spark is bullet proof, and the cheapest of the bunch.It is a simple drop in ,no settings on gap. It is an infared trigger that is rock steady on timing and simple to hook up.........Boat dr
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Post Options Post Options   Thanks (0) Thanks(0)   Quote boat dr Quote  Post ReplyReply Direct Link To This Post Posted: June-29-2008 at 1:29am
Mallory part # 9-26903 for the E-Spark
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tapenick Quote  Post ReplyReply Direct Link To This Post Posted: June-29-2008 at 1:30pm

Between trucks and boats I've tried two Pertronix, one Accel, and a Prestolite.   Trouble with both Pertronix and the Accel.   The Prestolite was already installed in my latest boat and so far it's been fine.

I suggest either trying the Mallory as Boat Doc says or upgrading the entire dizzy.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote rhschnauss Quote  Post ReplyReply Direct Link To This Post Posted: June-29-2008 at 9:32pm
I was told to get the prestolite because it used the stock rotor and the others don't.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote stang72 Quote  Post ReplyReply Direct Link To This Post Posted: June-30-2008 at 2:27am
The pertonix uses the same rotor...I have a set in two boats and it's all been trouble free.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Luchog Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 10:28am
I finally ended up with the Prestolite unit, should I bypass the resistor as the instructions say or keep it?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TRBenj Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 12:25pm
Originally posted by Luchog Luchog wrote:

should I bypass the resistor as the instructions say...?

Lets think about this for a moment. Hmmmm....
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Post Options Post Options   Thanks (0) Thanks(0)   Quote anthonylizardi Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 1:52pm
I was going to start a new thread with my question but I guess I will take advantage of this one. I have an 88 SN. I know how to check timing but I have limited knowledge on this issue. I know my cap is the screw down type. I want to improve the reliability on my boat on this area and get rid of the points. At first I thought about getting a DUI but my engine is stock and per the price I am doubting myself. I plan to leave the engine as it is. Now I am thinking about one of this conversion kit. They seem more affordable with good reliability. So how they works? Just replace the internal with one of these. I know, like my instructor used to said, RTFM (Read the f... manual). Is buying one of these is all I need? The Mallory conversion Dr. recommend said that is for a clip down type. Does it matters or do I need to look for a different model?

Is the Mallory Marine 9-26902 is the one I need? They said is for Marine with the screw down type.

While I am working on that area, do you recommend replacing the cap or cables. They seem to be fine but my boat has been neglected for years.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote anthonylizardi Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 2:29pm
I was reading the maintenance manual and it says to lubricate the distributor. What kind of oil/grease you guys use. Has anybody done this before?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TRBenj Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 3:10pm
Anthony, I think youre on the right track. Personally, I would not add a DUI or any other electronic distributor for $300+ if I planned to keep the motor stock.

I have to say that I wouldnt bother with one of the EI retrofit kits either, though. A properly tuned up engine will start every bit as nice with points as EI, in my opinion. That means you need to have all your ignition parts in good condition (plugs, wires, cap, rotor, points, condensor), AND have the dwell and timing set properly. After all that is done, the carb can be dialed in. Both my Skier and Tique have points and they start beautifully- nicer than my '90, in fact.

As far as lubricating the distributor goes, I am not sure what sort of grease would be recommended. The only parts I can think of that would need greasing are the weights/springs.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Luchog Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 4:41pm
Originally posted by TRBenj TRBenj wrote:

Originally posted by Luchog Luchog wrote:

should I bypass the resistor as the instructions say...?

Lets think about this for a moment. Hmmmm....


I already knew your idea on this one, but wherever this topic is posted there end up with many different solutions so I was looking for some sort of consensus???

But now that I've called your attention, do you know the specifications for the coil Prestolite recommends? So I'll see if the one I got matches or I should get a new one around here.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote anthonylizardi Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 4:52pm
Thanks Tim,
    As far as the maintenance I guess I found the information in the manual. I wonder how often this needs to be done. Oil the wick (center) with SAE-10W engine oil. Any thoughts?



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Post Options Post Options   Thanks (0) Thanks(0)   Quote anthonylizardi Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 5:04pm
Here ia another excerpt from the owners manual:



Any thoughts? I never heard of this before.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TRBenj Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 5:15pm
Luciano, follow the instructions on both accounts! If the Prestolite kit says to bypass the resistor, then bypass it. I dont know the specs on thier coil, but I suspect you could find an equivalent locally. SkiDIM would know for sure.

Anthony, good stuff- I should follow that maintenance advice. Ive got 2 dizzys that are/were frozen up, so an ounce of prevention should go a long ways.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote anthonylizardi Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 6:21pm
Glad this info might help. What do they mean by apply small amount of grease on the distributor cam surface? Is that inside the distributor or do I need to remove it to do this PM. I am not getting the term "distributor cam surface".
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 7:22pm
Anthony,
The distributor cam is what the wear block on the points rub on opening and closing them. A good set of premium points used to come with a small ampule of lube!
BTW, Just as Tim has stated, reliability improves with a decent tune up and having all the other parts in good condition.   The EI conversion isn't going to do it!! I've bragged about it before - I gave my 312 a tune up when I bought it and haven't touched it since. That was around 1980 !!! Also, the EI's aren't trouble free. If they go you're stuck swimming. If points go, you can take a nail file to them to at least get home! Have you been over on PN again listening to all of the gadget BS again????


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Post Options Post Options   Thanks (0) Thanks(0)   Quote anthonylizardi Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 7:38pm
But, but, but... do you about an EI conversion going bad? I thought they were more reliable, better starting, better efficiency... For know my boat runs great, except for running out of gas, but it has a new pump and hopefully that was the problem. I guess I will wait until the points goes bad.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SNobsessed Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 7:51pm
Anthony - Points are really cheap - you can get them at NAPA. No reason to ever let them go totally bad!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 7:52pm
Originally posted by anthonylizardi anthonylizardi wrote:

I thought they were more reliable, better starting, better efficiency... For now my boat runs great


Have you ever bought something Billy Mays has pitched??


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Pete, the Dow closed below 8 today...better let him spend his money!   LOL
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Post Options Post Options   Thanks (0) Thanks(0)   Quote anthonylizardi Quote  Post ReplyReply Direct Link To This Post Posted: November-19-2008 at 8:39pm
Originally posted by BuffaloBFN BuffaloBFN wrote:

Pete, the Dow closed below 8 today...better let him spend his money!   LOL


What's wrong with Billy Mays I buys all of his stuff. I stick to the points until it becomes a headache. Wife is complaining on how much I am spending.

I get it...
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