prestolite electronic ignition conversion |
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rhschnauss
Newbie Joined: June-02-2008 Location: United States Status: Offline Points: 30 |
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Posted: June-27-2008 at 2:50am |
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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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rhschnauss
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nuttyskier2002
Gold Member Joined: September-28-2005 Location: United States Status: Offline Points: 669 |
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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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95 Malibu Echelon w/Mercruiser 350 Magnum Skier
Former boats: 88 Ski Centurion Tru Trac II 59 Chris Craft Capri (woody) |
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79nautique
Grand Poobah Joined: January-27-2004 Location: United States Status: Offline Points: 7872 |
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just put both wires on one post and call it a day.
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tapenick
Senior Member Joined: May-17-2008 Location: United States Status: Offline Points: 185 |
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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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tapenick
Senior Member Joined: May-17-2008 Location: United States Status: Offline Points: 185 |
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Gap should be .008 to .010 Tom |
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Online Points: 21186 |
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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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tapenick
Senior Member Joined: May-17-2008 Location: United States Status: Offline Points: 185 |
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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. Tom |
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Online Points: 21186 |
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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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Luchog
Grand Poobah Joined: April-17-2007 Location: Argentina Status: Offline Points: 2135 |
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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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boat dr
Grand Poobah Joined: June-27-2004 Location: United States Status: Offline Points: 4245 |
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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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boat dr
Grand Poobah Joined: June-27-2004 Location: United States Status: Offline Points: 4245 |
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Mallory part # 9-26903 for the E-Spark
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tapenick
Senior Member Joined: May-17-2008 Location: United States Status: Offline Points: 185 |
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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. Tom |
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rhschnauss
Newbie Joined: June-02-2008 Location: United States Status: Offline Points: 30 |
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I was told to get the prestolite because it used the stock rotor and the others don't.
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rhschnauss
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stang72
Platinum Member Joined: July-31-2004 Location: United States Status: Offline Points: 1608 |
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The pertonix uses the same rotor...I have a set in two boats and it's all been trouble free.
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Luchog
Grand Poobah Joined: April-17-2007 Location: Argentina Status: Offline Points: 2135 |
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I finally ended up with the Prestolite unit, should I bypass the resistor as the instructions say or keep it?
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Online Points: 21186 |
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Lets think about this for a moment. Hmmmm.... |
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anthonylizardi
Gold Member Joined: July-25-2007 Location: DFW, TX, USA Status: Offline Points: 836 |
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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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anthonylizardi
Gold Member Joined: July-25-2007 Location: DFW, TX, USA Status: Offline Points: 836 |
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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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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Online Points: 21186 |
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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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Luchog
Grand Poobah Joined: April-17-2007 Location: Argentina Status: Offline Points: 2135 |
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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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anthonylizardi
Gold Member Joined: July-25-2007 Location: DFW, TX, USA Status: Offline Points: 836 |
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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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anthonylizardi
Gold Member Joined: July-25-2007 Location: DFW, TX, USA Status: Offline Points: 836 |
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Here ia another excerpt from the owners manual:
Any thoughts? I never heard of this before. |
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Online Points: 21186 |
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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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anthonylizardi
Gold Member Joined: July-25-2007 Location: DFW, TX, USA Status: Offline Points: 836 |
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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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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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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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anthonylizardi
Gold Member Joined: July-25-2007 Location: DFW, TX, USA Status: Offline Points: 836 |
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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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SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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Anthony - Points are really cheap - you can get them at NAPA. No reason to ever let them go totally bad!
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Have you ever bought something Billy Mays has pitched?? |
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BuffaloBFN
Grand Poobah Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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Pete, the Dow closed below 8 today...better let him spend his money! LOL
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anthonylizardi
Gold Member Joined: July-25-2007 Location: DFW, TX, USA Status: Offline Points: 836 |
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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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